v3.26.1
Investment Risks
Sep. 04, 2026
Eventide High Dividend ETF  
Prospectus [Line Items]  
Risk [Text Block]

As with any ETF, there is no guarantee that the Fund will achieve its objective. Investment markets are unpredictable and there will be certain market conditions where the Fund will not meet its investment objective and will lose money. The Fund’s net asset value (“NAV”), market price and returns will vary, and you could lose money on your investment in the Fund and those losses could be significant. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

 

The following identifies the principal risks of investing in the Fund. These risks could adversely affect the NAV, market price, total return and the value of the Fund and your investment.

 

ADRs Risk. ADRs, which are typically issued by a bank, are certificates that evidence ownership of shares of a foreign company and are alternatives to purchasing foreign securities directly in their national markets and currencies. ADRs are subject to the same risks as direct investment in foreign companies and involve risks that are not found in investments in U.S. companies. Although an ADR is priced in the U.S. dollar, movements in the exchange rate of the local currency versus the U.S. dollar are automatically reflected in the price of the ADR in U.S. dollars. Therefore, even if the price of the foreign security does not change on its market, if the exchange rate of the local currency relative to the U.S. dollar declines, the ADR price would decline by a similar measure.

 

Authorized Participant Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants. An “Authorized Participant” is a participant in the Continuous Net Settlement System of the National Securities Clearing Corporation or the Depository Trust Company (“DTC”) and that has executed a Participant Agreement with the Fund’s distributor (“Distributor”). To the extent these Authorized Participants exit the business or are unable to process creation and/or redemption orders and no other Authorized Participant is able to step forward to process creation and/or redemption orders, in either of these cases, Shares of the Fund may trade like closed-end fund shares at a discount to the Fund’s NAV per share and possibly face delisting by NYSE Arca, Inc. (the “Exchange”). These risks could cause intra-day bid/ask spreads for the Fund’s shares to widen.

 

Cash and Cash Equivalents Risk. At times, the Fund may have significant investments in cash or cash equivalents. When a substantial portion of a portfolio is held in cash or cash equivalents, there is the risk that the value of the cash account, including interest, will not keep pace with inflation, thus reducing purchasing power over time. Additionally, in rising markets, holding cash or cash equivalents may adversely affect the Fund’s performance and the Fund may not achieve its investment objective.

 

Dividend Yield Risk. While the Fund may hold securities of companies that have historically paid a dividend, those companies may reduce or discontinue their dividends, thus reducing the yield of the Fund. Lower priced securities in the Fund may be more susceptible to these risks. Past dividend payments are not a guarantee of future dividend payments.

 

Energy Sector Risk. Companies operating in the energy sector may be adversely affected by changes in worldwide energy prices, exploration and production spending. In addition, changes in government regulation, world events and political and economic conditions can affect these companies. These companies also are at risk of civil liability from accidents resulting in injury, loss of life or property, pollution or other environmental damage claims and risk of loss from terrorism, war and natural disasters. Commodity price volatility, changes in exchange rates, imposition of import controls, increased competition, depletion of resources, development of alternative energy sources, technological developments, geopolitical conflict and related economic sanctions and labor relations also could affect companies in this sector.

 

Energy Equipment and Services Industry Risk. Companies in the energy equipment and services industry are subject to many risks that can negatively impact the revenues and viability of companies in this industry. These risks include, but are not limited to, commodity price volatility risk, supply and demand risk, reserve and depletion risk, operations risk, regulatory risk, environmental risk, terrorism risk and the risk of natural disasters.

 

Oil, Gas and Consumable Fuels Industry Risk. Changes in energy costs, exploration, and production worldwide, including the global transition to sustainable energy, may adversely affect the profitability of companies in the oil, gas and consumable fuels industry. These companies may also be affected by world events in the regions in which they operate (e.g., expropriation, nationalization, confiscation of assets and property or the imposition of restrictions on foreign investments and repatriation of capital, military coups, social unrest, violence or labor unrest).

 

Equity Securities Risk. The NAV and market price of the Fund will fluctuate based on changes in the value of the equity securities held by the Fund. Equity prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.

 

Ethical Investment Risk. The Fund’s ethical values screening criteria could cause it to underperform similar funds that do not have such screening criteria. This could be due to ethically acceptable companies falling out of favor with investors or failing to perform as well as companies that do not meet the Fund’s ethical screening guidelines.

 

To supplement its efforts in ethical investing, the Adviser may engage with portfolio companies to encourage consideration of corporate strategies aligned with the Adviser’s values, including pricing and/or business practices that may be beneficial within particular industries. The Adviser believes these activities will help promote ethical and effective corporate governance and long-term strategy for companies, and potentially create a positive effect on the particular businesses and/or industries, their consumers, and the Fund. There is no guarantee that the Adviser’s corporate engagements and related-activities will achieve their intended results. There is a risk that the Adviser’s activities in this regard could limit the Fund’s investment universe and reduce the amount of profits that could be realized by affected companies, limiting the Fund’s investment returns. Furthermore, the US government or any agency thereof, may enact rules or legislation that, directly or indirectly, materially impacts the Adviser’s activities in this regard, or materially affects the value of companies or opportunities for investment within particular industries.

 

ETF Structure Risks. The Fund, and any ETFs the Fund may invest in, are structured as ETFs and as a result are subject to special risks, including:

 

Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” You may incur brokerage costs purchasing enough Shares to constitute a Creation Unit. Fund shares are typically bought and sold in the secondary market and investors typically pay brokerage commissions or other charges on these transactions.

 

Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for a Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares and will include a “bid/ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s NAV, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid and ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s domestic trading day, which could lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

Foreign Investment Risk. Investments in foreign securities tend to be more volatile and less liquid than investments in U.S. securities because, among other things, they involve risks relating to political, social and economic developments abroad, including economic sanctions, as well as risks resulting from differences between the regulations and reporting standards and practices to which U.S. and foreign issuers are subject. Investing in foreign securities includes trading related risks (e.g., government supervision and regulation of foreign securities and currency markets, trading systems and brokers may be less than in the U.S., and foreign securities may be subject to foreign governmental restrictions such as exchange controls). The risks of investing in foreign securities are typically increased by investing in emerging market countries. Securities denominated in foreign currencies may be adversely affected by changes in currency rates and by substantial currency conversion costs.

 

Industrials Sector Risk. The value of securities issued by companies in the industrials sector may be adversely affected by supply and demand related to their specific products or services and industrials sector products in general. The products of manufacturing companies may face obsolescence due to rapid technological developments and frequent new product introduction. Government regulations, world events, economic conditions and exchange rates may adversely affect the performance of companies in the industrials sector. Companies in the industrials sector may be adversely affected by liability for environmental damage and product liability claims. Companies in the industrials sector, particularly aerospace and defense companies, may also be adversely affected by government spending policies because companies involved in this sector rely to a significant extent on government demand for their products and services.

 

Industry Concentration Risk. A fund that concentrates its investments in an industry or group of industries is more vulnerable to adverse market, economic, regulatory, political or other developments affecting such industry or group of industries than a fund that invests its assets more broadly.

 

Investment Style Risk. The type of securities in which the Fund focuses may underperform other assets or the overall market.

 

Issuer Specific Risk. The performance of the Fund depends on the performance of the issuers of the individual securities in which the Fund invests. Poor performance by any issuer may cause the value of its securities, and the value of the Fund’s shares, to decline. The value of a specific security can be more volatile than the market as a whole and can perform differently from the value of the market as a whole. The value of securities of smaller issuers can be more volatile than those of larger issuers. The value of certain types of securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments. Market prices of securities in broad market segments may be adversely affected by a prominent issuer having experienced losses, lack of earnings, failure to meet the market’s expectations with respect to new products or services, or even by factors wholly unrelated to the value or condition of the issuer, such as changes in interest rates.

 

Large Capitalization Company Risk. The Fund’s investment in larger companies is subject to the risk that larger companies are sometimes unable to attain the high growth rates of successful, smaller companies, especially during extended periods of economic expansion; and may be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes.

 

Limited History of Operations Risk. The Fund has a limited history of operations for investors to evaluate.

 

Management Risk. The Adviser’s reliance on its sector allocation and risk management strategies and related judgments about the value and potential appreciation of securities in which the Fund invests may prove to be incorrect. The Adviser may not successfully implement the Fund’s investment strategies and, as a result, the Fund may not meet its investment objective and/or underperform other investment vehicles with similar investment objectives and strategies.

 

Market Risk. The value of securities in the Fund’s portfolio will fluctuate and, as a result, the Fund’s NAV or market price per share may decline suddenly or over a sustained period of time. Factors such as domestic and foreign economic growth rates and market conditions, interest rate levels, trading and tariff events and political events may adversely affect the securities markets.

 

Medium (Mid) Capitalization Company Risk. To the extent the Fund invests in the stocks of mid-sized companies, the Fund may be subject to additional risks. The earnings and prospects of these companies are more volatile than larger companies. These companies may experience higher failure rates than larger companies. Mid- sized companies normally have a lower trading volume than larger companies, which may tend to make their market price fall more disproportionately than larger companies in response to selling pressures. Mid-sized companies may also have limited markets, product lines or financial resources and may lack management experience.

 

Preferred Stock Risk. Typically, a rise in interest rates causes a decline in the value of preferred stocks. Preferred stocks are also subject to credit and default risk, which is the possibility that an issuer of preferred stock will fail to make its dividend payment. Issuers of preferred stocks may redeem their securities prior to maturity at a price below their current market value which would negatively impact the investment return of such preferred stocks.

 

Real Estate Sector Risk. The Fund is subject to the risks of the real estate market as a whole, such as taxation, regulations and economic and political factors that negatively impact the real estate market and the direct ownership of real estate. These may include decreases in real estate values, overbuilding, rising operating costs, interest rates and property taxes. In addition, some real estate related investments are not fully diversified and are subject to the risks associated with financing a limited number of projects.

 

REIT Risk. The Fund’s investments in REITs are subject to the same risks as direct investments in real estate, including sensitivity to general economic downturns and the volatility of local real estate markets. REITs may have limited financial resources and their securities may trade infrequently and in limited volume, and thus they may be more volatile than other securities. The liquidity of REITs may change dramatically over time.

 

Sector Risk. The Fund may focus its investments in securities of a particular sector. Economic, legislative or regulatory developments may occur that significantly affect the sector. This may cause the Fund’s NAV to fluctuate more than that of a fund that does not focus in a particular sector.

 

Security Risk. The value of the Fund may decrease in response to the activities and financial prospects of an individual security in the Fund’s or an Underlying Fund’s portfolio.

 

Technology Sector Risk. Technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Technology companies may have limited product lines, markets, financial resources or personnel. The products of technology companies may face obsolescence or adoption challenges due to rapid technological developments and frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the technology sector can be heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Investments in this sector can be highly volatile. Their values may be adversely affected by such factors as, for example, rapid technological change, changes in management personnel, changes in the competitive environment, and changes in investor sentiment.

 

Utilities Sector Risk. Companies in the utilities sector are subject to a variety of factors that may adversely affect their business or operations, including high interest costs associated with capital construction and improvement programs; difficulty in raising adequate capital in periods of high inflation and unsettled capital markets; governmental regulation of rates the issuer can charge to customers; costs associated with compliance with environmental and other regulations; effects of economic slowdowns and surplus capacity; increased competition; and potential losses resulting from a developing deregulatory environment.

 

Multi-Utilities Industry Risk. The multi-utilities industry includes utility companies engaged in one or more of electric utility, gas utility and/or water utility core operations as well as other diversified activities. The prices of securities in the multi-utilities industry may fluctuate significantly due to economic conditions generally affecting utilities companies, supply and demand, competitive pressures due to deregulation in the utilities industries, increased sensitivity to the cost of energy production, and environmental factors such as conservation of natural resources or pollution control. Legislative or regulatory changes and increased government supervision also may affect companies in the multi-utilities industry.

 

Independent Power and Renewable Electricity Producers Industry Risk. Companies in the independent power and renewable electricity producers industry may be highly dependent upon contracts with government entities and related subsidies, and the successful development of new and proprietary technologies. In addition, seasonal weather conditions, fluctuations in the supply of and demand for energy products, changes in energy prices, and international political events may cause fluctuations in the performance of independent power and renewable electricity producers companies and the prices of their securities.

 

For more information, please see the section of the Fund’s Prospectus entitled “Additional Information About the Fund’s Principal Investment Strategies and Related Risks.” 

Eventide High Dividend ETF | ADRs Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

ADRs Risk. ADRs, which are typically issued by a bank, are certificates that evidence ownership of shares of a foreign company and are alternatives to purchasing foreign securities directly in their national markets and currencies. ADRs are subject to the same risks as direct investment in foreign companies and involve risks that are not found in investments in U.S. companies. Although an ADR is priced in the U.S. dollar, movements in the exchange rate of the local currency versus the U.S. dollar are automatically reflected in the price of the ADR in U.S. dollars. Therefore, even if the price of the foreign security does not change on its market, if the exchange rate of the local currency relative to the U.S. dollar declines, the ADR price would decline by a similar measure.

Eventide High Dividend ETF | Authorized Participant Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Authorized Participant Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants. An “Authorized Participant” is a participant in the Continuous Net Settlement System of the National Securities Clearing Corporation or the Depository Trust Company (“DTC”) and that has executed a Participant Agreement with the Fund’s distributor (“Distributor”). To the extent these Authorized Participants exit the business or are unable to process creation and/or redemption orders and no other Authorized Participant is able to step forward to process creation and/or redemption orders, in either of these cases, Shares of the Fund may trade like closed-end fund shares at a discount to the Fund’s NAV per share and possibly face delisting by NYSE Arca, Inc. (the “Exchange”). These risks could cause intra-day bid/ask spreads for the Fund’s shares to widen.

 

Eventide High Dividend ETF | Cash and Cash Equivalents Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Cash and Cash Equivalents Risk. At times, the Fund may have significant investments in cash or cash equivalents. When a substantial portion of a portfolio is held in cash or cash equivalents, there is the risk that the value of the cash account, including interest, will not keep pace with inflation, thus reducing purchasing power over time. Additionally, in rising markets, holding cash or cash equivalents may adversely affect the Fund’s performance and the Fund may not achieve its investment objective.

 

Eventide High Dividend ETF | Dividend Yield Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Dividend Yield Risk. While the Fund may hold securities of companies that have historically paid a dividend, those companies may reduce or discontinue their dividends, thus reducing the yield of the Fund. Lower priced securities in the Fund may be more susceptible to these risks. Past dividend payments are not a guarantee of future dividend payments.

 

Eventide High Dividend ETF | Energy Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Energy Sector Risk. Companies operating in the energy sector may be adversely affected by changes in worldwide energy prices, exploration and production spending. In addition, changes in government regulation, world events and political and economic conditions can affect these companies. These companies also are at risk of civil liability from accidents resulting in injury, loss of life or property, pollution or other environmental damage claims and risk of loss from terrorism, war and natural disasters. Commodity price volatility, changes in exchange rates, imposition of import controls, increased competition, depletion of resources, development of alternative energy sources, technological developments, geopolitical conflict and related economic sanctions and labor relations also could affect companies in this sector.

 

Energy Equipment and Services Industry Risk. Companies in the energy equipment and services industry are subject to many risks that can negatively impact the revenues and viability of companies in this industry. These risks include, but are not limited to, commodity price volatility risk, supply and demand risk, reserve and depletion risk, operations risk, regulatory risk, environmental risk, terrorism risk and the risk of natural disasters.

 

Oil, Gas and Consumable Fuels Industry Risk. Changes in energy costs, exploration, and production worldwide, including the global transition to sustainable energy, may adversely affect the profitability of companies in the oil, gas and consumable fuels industry. These companies may also be affected by world events in the regions in which they operate (e.g., expropriation, nationalization, confiscation of assets and property or the imposition of restrictions on foreign investments and repatriation of capital, military coups, social unrest, violence or labor unrest).
Eventide High Dividend ETF | Energy Equipment and Services Industry Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Energy Equipment and Services Industry Risk. Companies in the energy equipment and services industry are subject to many risks that can negatively impact the revenues and viability of companies in this industry. These risks include, but are not limited to, commodity price volatility risk, supply and demand risk, reserve and depletion risk, operations risk, regulatory risk, environmental risk, terrorism risk and the risk of natural disasters.

 

Eventide High Dividend ETF | Oil, Gas and Consumable Fuels Industry Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Oil, Gas and Consumable Fuels Industry Risk. Changes in energy costs, exploration, and production worldwide, including the global transition to sustainable energy, may adversely affect the profitability of companies in the oil, gas and consumable fuels industry. These companies may also be affected by world events in the regions in which they operate (e.g., expropriation, nationalization, confiscation of assets and property or the imposition of restrictions on foreign investments and repatriation of capital, military coups, social unrest, violence or labor unrest).

 

Eventide High Dividend ETF | Equity Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Equity Securities Risk. The NAV and market price of the Fund will fluctuate based on changes in the value of the equity securities held by the Fund. Equity prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.

 

Eventide High Dividend ETF | Ethical Investment Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Ethical Investment Risk. The Fund’s ethical values screening criteria could cause it to underperform similar funds that do not have such screening criteria. This could be due to ethically acceptable companies falling out of favor with investors or failing to perform as well as companies that do not meet the Fund’s ethical screening guidelines.

 

To supplement its efforts in ethical investing, the Adviser may engage with portfolio companies to encourage consideration of corporate strategies aligned with the Adviser’s values, including pricing and/or business practices that may be beneficial within particular industries. The Adviser believes these activities will help promote ethical and effective corporate governance and long-term strategy for companies, and potentially create a positive effect on the particular businesses and/or industries, their consumers, and the Fund. There is no guarantee that the Adviser’s corporate engagements and related-activities will achieve their intended results. There is a risk that the Adviser’s activities in this regard could limit the Fund’s investment universe and reduce the amount of profits that could be realized by affected companies, limiting the Fund’s investment returns. Furthermore, the US government or any agency thereof, may enact rules or legislation that, directly or indirectly, materially impacts the Adviser’s activities in this regard, or materially affects the value of companies or opportunities for investment within particular industries.

Eventide High Dividend ETF | ETF Structure Risks [Member]  
Prospectus [Line Items]  
Risk [Text Block]

ETF Structure Risks. The Fund, and any ETFs the Fund may invest in, are structured as ETFs and as a result are subject to special risks, including:

 

Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” You may incur brokerage costs purchasing enough Shares to constitute a Creation Unit. Fund shares are typically bought and sold in the secondary market and investors typically pay brokerage commissions or other charges on these transactions.

 

Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for a Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares and will include a “bid/ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s NAV, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid and ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s domestic trading day, which could lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.
Eventide High Dividend ETF | Not Individually Redeemable [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” You may incur brokerage costs purchasing enough Shares to constitute a Creation Unit. Fund shares are typically bought and sold in the secondary market and investors typically pay brokerage commissions or other charges on these transactions.

 

Eventide High Dividend ETF | Trading Issues [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for a Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Eventide High Dividend ETF | Market Price Variance Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares and will include a “bid/ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s NAV, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid and ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s domestic trading day, which could lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.
Eventide High Dividend ETF | Foreign Investment Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Foreign Investment Risk. Investments in foreign securities tend to be more volatile and less liquid than investments in U.S. securities because, among other things, they involve risks relating to political, social and economic developments abroad, including economic sanctions, as well as risks resulting from differences between the regulations and reporting standards and practices to which U.S. and foreign issuers are subject. Investing in foreign securities includes trading related risks (e.g., government supervision and regulation of foreign securities and currency markets, trading systems and brokers may be less than in the U.S., and foreign securities may be subject to foreign governmental restrictions such as exchange controls). The risks of investing in foreign securities are typically increased by investing in emerging market countries. Securities denominated in foreign currencies may be adversely affected by changes in currency rates and by substantial currency conversion costs.

 

Eventide High Dividend ETF | Industrials Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Industrials Sector Risk. The value of securities issued by companies in the industrials sector may be adversely affected by supply and demand related to their specific products or services and industrials sector products in general. The products of manufacturing companies may face obsolescence due to rapid technological developments and frequent new product introduction. Government regulations, world events, economic conditions and exchange rates may adversely affect the performance of companies in the industrials sector. Companies in the industrials sector may be adversely affected by liability for environmental damage and product liability claims. Companies in the industrials sector, particularly aerospace and defense companies, may also be adversely affected by government spending policies because companies involved in this sector rely to a significant extent on government demand for their products and services.

 

Eventide High Dividend ETF | Industry Concentration Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Industry Concentration Risk. A fund that concentrates its investments in an industry or group of industries is more vulnerable to adverse market, economic, regulatory, political or other developments affecting such industry or group of industries than a fund that invests its assets more broadly.

 

Eventide High Dividend ETF | Investment Style Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Investment Style Risk. The type of securities in which the Fund focuses may underperform other assets or the overall market.

 

Eventide High Dividend ETF | Issuer Specific Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Issuer Specific Risk. The performance of the Fund depends on the performance of the issuers of the individual securities in which the Fund invests. Poor performance by any issuer may cause the value of its securities, and the value of the Fund’s shares, to decline. The value of a specific security can be more volatile than the market as a whole and can perform differently from the value of the market as a whole. The value of securities of smaller issuers can be more volatile than those of larger issuers. The value of certain types of securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments. Market prices of securities in broad market segments may be adversely affected by a prominent issuer having experienced losses, lack of earnings, failure to meet the market’s expectations with respect to new products or services, or even by factors wholly unrelated to the value or condition of the issuer, such as changes in interest rates.

 

Eventide High Dividend ETF | Large Capitalization Company Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Large Capitalization Company Risk. The Fund’s investment in larger companies is subject to the risk that larger companies are sometimes unable to attain the high growth rates of successful, smaller companies, especially during extended periods of economic expansion; and may be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes.

 

Eventide High Dividend ETF | Limited History of Operations Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Limited History of Operations Risk. The Fund has a limited history of operations for investors to evaluate.

 

Eventide High Dividend ETF | Management Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Management Risk. The Adviser’s reliance on its sector allocation and risk management strategies and related judgments about the value and potential appreciation of securities in which the Fund invests may prove to be incorrect. The Adviser may not successfully implement the Fund’s investment strategies and, as a result, the Fund may not meet its investment objective and/or underperform other investment vehicles with similar investment objectives and strategies.

Eventide High Dividend ETF | Market Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Market Risk. The value of securities in the Fund’s portfolio will fluctuate and, as a result, the Fund’s NAV or market price per share may decline suddenly or over a sustained period of time. Factors such as domestic and foreign economic growth rates and market conditions, interest rate levels, trading and tariff events and political events may adversely affect the securities markets.

 

Eventide High Dividend ETF | Medium (Mid) Capitalization Company Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Medium (Mid) Capitalization Company Risk. To the extent the Fund invests in the stocks of mid-sized companies, the Fund may be subject to additional risks. The earnings and prospects of these companies are more volatile than larger companies. These companies may experience higher failure rates than larger companies. Mid- sized companies normally have a lower trading volume than larger companies, which may tend to make their market price fall more disproportionately than larger companies in response to selling pressures. Mid-sized companies may also have limited markets, product lines or financial resources and may lack management experience.

 

Eventide High Dividend ETF | Preferred Stock Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Preferred Stock Risk. Typically, a rise in interest rates causes a decline in the value of preferred stocks. Preferred stocks are also subject to credit and default risk, which is the possibility that an issuer of preferred stock will fail to make its dividend payment. Issuers of preferred stocks may redeem their securities prior to maturity at a price below their current market value which would negatively impact the investment return of such preferred stocks.

 

Eventide High Dividend ETF | Real Estate Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Real Estate Sector Risk. The Fund is subject to the risks of the real estate market as a whole, such as taxation, regulations and economic and political factors that negatively impact the real estate market and the direct ownership of real estate. These may include decreases in real estate values, overbuilding, rising operating costs, interest rates and property taxes. In addition, some real estate related investments are not fully diversified and are subject to the risks associated with financing a limited number of projects.

 

Eventide High Dividend ETF | REIT Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

REIT Risk. The Fund’s investments in REITs are subject to the same risks as direct investments in real estate, including sensitivity to general economic downturns and the volatility of local real estate markets. REITs may have limited financial resources and their securities may trade infrequently and in limited volume, and thus they may be more volatile than other securities. The liquidity of REITs may change dramatically over time.

 

Eventide High Dividend ETF | Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Sector Risk. The Fund may focus its investments in securities of a particular sector. Economic, legislative or regulatory developments may occur that significantly affect the sector. This may cause the Fund’s NAV to fluctuate more than that of a fund that does not focus in a particular sector.

 

Eventide High Dividend ETF | Security Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Security Risk. The value of the Fund may decrease in response to the activities and financial prospects of an individual security in the Fund’s or an Underlying Fund’s portfolio.

 

Eventide High Dividend ETF | Technology Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Technology Sector Risk. Technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Technology companies may have limited product lines, markets, financial resources or personnel. The products of technology companies may face obsolescence or adoption challenges due to rapid technological developments and frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the technology sector can be heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Investments in this sector can be highly volatile. Their values may be adversely affected by such factors as, for example, rapid technological change, changes in management personnel, changes in the competitive environment, and changes in investor sentiment.

Eventide High Dividend ETF | Utilities Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Utilities Sector Risk. Companies in the utilities sector are subject to a variety of factors that may adversely affect their business or operations, including high interest costs associated with capital construction and improvement programs; difficulty in raising adequate capital in periods of high inflation and unsettled capital markets; governmental regulation of rates the issuer can charge to customers; costs associated with compliance with environmental and other regulations; effects of economic slowdowns and surplus capacity; increased competition; and potential losses resulting from a developing deregulatory environment.

 

Multi-Utilities Industry Risk. The multi-utilities industry includes utility companies engaged in one or more of electric utility, gas utility and/or water utility core operations as well as other diversified activities. The prices of securities in the multi-utilities industry may fluctuate significantly due to economic conditions generally affecting utilities companies, supply and demand, competitive pressures due to deregulation in the utilities industries, increased sensitivity to the cost of energy production, and environmental factors such as conservation of natural resources or pollution control. Legislative or regulatory changes and increased government supervision also may affect companies in the multi-utilities industry.

 

Independent Power and Renewable Electricity Producers Industry Risk. Companies in the independent power and renewable electricity producers industry may be highly dependent upon contracts with government entities and related subsidies, and the successful development of new and proprietary technologies. In addition, seasonal weather conditions, fluctuations in the supply of and demand for energy products, changes in energy prices, and international political events may cause fluctuations in the performance of independent power and renewable electricity producers companies and the prices of their securities.
Eventide High Dividend ETF | Multi-Utilities Industry Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Multi-Utilities Industry Risk. The multi-utilities industry includes utility companies engaged in one or more of electric utility, gas utility and/or water utility core operations as well as other diversified activities. The prices of securities in the multi-utilities industry may fluctuate significantly due to economic conditions generally affecting utilities companies, supply and demand, competitive pressures due to deregulation in the utilities industries, increased sensitivity to the cost of energy production, and environmental factors such as conservation of natural resources or pollution control. Legislative or regulatory changes and increased government supervision also may affect companies in the multi-utilities industry.

 

Eventide High Dividend ETF | Independent Power and Renewable Electricity Producers Industry Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Independent Power and Renewable Electricity Producers Industry Risk. Companies in the independent power and renewable electricity producers industry may be highly dependent upon contracts with government entities and related subsidies, and the successful development of new and proprietary technologies. In addition, seasonal weather conditions, fluctuations in the supply of and demand for energy products, changes in energy prices, and international political events may cause fluctuations in the performance of independent power and renewable electricity producers companies and the prices of their securities.
Eventide International ETF  
Prospectus [Line Items]  
Risk [Text Block]

As with any ETF, there is no guarantee that the Fund will achieve its objective. Investment markets are unpredictable and there will be certain market conditions where the Fund will not meet its investment objective and will lose money. The Fund’s net asset value (“NAV”), market price and returns will vary, and you could lose money on your investment in the Fund and those losses could be significant. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

 

The following identifies the principal risks of investing in the Fund. These risks could adversely affect the NAV, market price, total return and the value of the Fund and your investment.

 

ADRs Risk. ADRs, which are typically issued by a bank, are certificates that evidence ownership of shares of a foreign company and are alternatives to purchasing foreign securities directly in their national markets and currencies. ADRs are subject to the same risks as direct investment in foreign companies and involve risks that are not found in investments in U.S. companies. Although an ADR is priced in the U.S. dollar, movements in the exchange rate of the local currency versus the U.S. dollar are automatically reflected in the price of the ADR in U.S. dollars. Therefore, even if the price of the foreign security does not change on its market, if the exchange rate of the local currency relative to the U.S. dollar declines, the ADR price would decline by a similar measure.

 

Authorized Participant Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants. An “Authorized Participant” is a participant in the Continuous Net Settlement System of the National Securities Clearing Corporation or the Depository Trust Company (“DTC”) and that has executed a Participant Agreement with the Fund’s distributor (“Distributor”). To the extent these Authorized Participants exit the business or are unable to process creation and/or redemption orders and no other Authorized Participant is able to step forward to process creation and/or redemption orders, in either of these cases, Shares of the Fund may trade like closed-end fund shares at a discount to the Fund’s NAV per share and possibly face delisting by NYSE Arca, Inc. (the “Exchange”). These risks could cause intra-day bid/ask spreads for the Fund’s shares to widen.

 

Currency Risk. If the Fund invests in securities that trade in, and receive revenues in, foreign currencies, it will be subject to the risk that those currencies will decline in value relative to the U.S. dollar. As a result, the Fund’s investments in foreign currency-denominated securities may reduce the Fund’s returns.

 

Emerging Market Risk. Emerging market countries may have relatively unstable governments, weaker economies, and less-developed legal systems with fewer security holder rights. Securities law and the enforcement of systems of taxation in many emerging market countries may change quickly and unpredictably, and the ability to bring and enforce actions, or to obtain information needed to pursue or enforce such actions, may be limited. Companies in emerging market countries generally may be subject to less stringent regulatory, disclosure, financial reporting, accounting, auditing and recordkeeping standards than companies in more developed countries. As a result, information, including financial information, about such companies may be less available and reliable, which can impede the Fund’s ability to evaluate such companies. Emerging markets usually are subject to greater market volatility, political, social and economic instability, uncertainty regarding the existence of trading markets, and more governmental limitations on foreign investment than are more developed markets. Emerging market economies may be based on only a few industries and security issuers may be more susceptible to economic weakness and more likely to default. Emerging market securities also tend to be less liquid, and the prices of such securities tend to be more volatile than the securities of issuers located in developed markets. Investments in emerging markets securities may be subject to additional transaction costs, delays in settlement procedures, unexpected market closures, and lack of timely information.

 

Equity Securities Risk. The NAV and market price of the Fund will fluctuate based on changes in the value of the equity securities held by the Fund. Equity prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.

 

Ethical Investment Risk. The Fund’s ethical values screening criteria could cause it to underperform similar funds that do not have such screening criteria. This could be due to ethically acceptable companies falling out of favor with investors or failing to perform as well as companies that do not meet the Fund’s ethical screening guidelines.

 

To supplement its efforts in ethical investing, the Adviser may engage with portfolio companies to encourage consideration of corporate strategies aligned with the Adviser’s values, including pricing and/or business practices that may be beneficial within particular industries. The Adviser believes these activities will help promote ethical and effective corporate governance and long-term strategy for companies, and potentially create a positive effect on the particular businesses and/or industries, their consumers, and the Fund. There is no guarantee that the Adviser’s corporate engagements and related activities will achieve their intended results. There is a risk that the Adviser’s activities in this regard could limit the Fund’s investment universe and reduce the amount of profits that could be realized by affected companies, limiting the Fund’s investment returns. Furthermore, the U.S. government or any agency thereof, may enact rules or legislation that, directly or indirectly, materially impacts the Adviser’s activities in this regard, or materially affects the value of companies or opportunities for investment within particular industries.

 

ETF Structure Risks. The Fund, and any ETFs the Fund may invest in, are structured as ETFs and as a result are subject to special risks, including:

 

Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” You may incur brokerage costs purchasing enough Shares to constitute a Creation Unit. Fund shares are typically bought and sold in the secondary market and investors typically pay brokerage commissions or other charges on these transactions.

 

Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for a Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares and will include a “bid/ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s NAV, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid and ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s domestic trading day, which could lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

Financial Sector Risk. Performance of companies in the financial sector may be adversely impacted by many factors, including, among others, government regulations, economic conditions, credit rating downgrades, changes in interest rates, and decreased liquidity in credit markets. The impact of more stringent capital requirements, recent or future regulation of any individual financial company, or recent or future regulation of the financial sector as a whole cannot be predicted.

 

Foreign Investment Risk. Investments in foreign securities tend to be more volatile and less liquid than investments in U.S. securities because, among other things, they involve risks relating to political, social and economic developments abroad, including economic sanctions, as well as risks resulting from differences between the regulations and reporting standards and practices to which U.S. and foreign issuers are subject. Investing in foreign securities includes trading related risks (e.g., government supervision and regulation of foreign securities and currency markets, trading systems and brokers may be less than in the U.S., and foreign securities may be subject to foreign governmental restrictions such as exchange controls). The risks of investing in foreign securities are typically increased by investing in emerging market countries. Securities denominated in foreign currencies may be adversely affected by changes in currency rates and by substantial currency conversion costs.

 

Industrials Sector Risk. The value of securities issued by companies in the industrials sector may be adversely affected by supply and demand related to their specific products or services and industrials sector products in general. The products of manufacturing companies may face obsolescence due to rapid technological developments and frequent new product introduction. Government regulations, world events, economic conditions and exchange rates may adversely affect the performance of companies in the industrials sector. Companies in the industrials sector may be adversely affected by liability for environmental damage and product liability claims. Companies in the industrials sector, particularly aerospace and defense companies, may also be adversely affected by government spending policies because companies involved in this sector rely to a significant extent on government demand for their products and services.

 

Industry Concentration Risk. The Fund may concentrate 25% to 35% of its total assets in a particular industry or group of industries to the extent that such industry or group of industries represents 20% or more of the Fund’s Strategy Benchmark. A fund that concentrates its investments in an industry or group of industries is more vulnerable to adverse market, economic, regulatory, political or other developments affecting such industry or group of industries than a fund that invests its assets more broadly.

 

Investment Style Risk. The type of securities in which the Fund focuses may underperform other assets or the overall market.

 

Issuer Specific Risk. The performance of the Fund depends on the performance of the issuers of the individual securities in which the Fund invests. Poor performance by any issuer may cause the value of its securities, and the value of the Fund’s shares, to decline. The value of a specific security can be more volatile than the market as a whole and can perform differently from the value of the market as a whole. The value of securities of smaller issuers can be more volatile than those of larger issuers. The value of certain types of securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments. Market prices of securities in broad market segments may be adversely affected by a prominent issuer having experienced losses, lack of earnings, failure to meet the market’s expectations with respect to new products or services, or even by factors wholly unrelated to the value or condition of the issuer, such as changes in interest rates.

 

Large Capitalization Company Risk. The Fund’s investment in larger companies is subject to the risk that larger companies are sometimes unable to attain the high growth rates of successful, smaller companies, especially during extended periods of economic expansion; and may be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes.

 

Limited History of Operations Risk. The Fund has a limited history of operations for investors to evaluate.

 

Management Risk. The Adviser’s reliance on its sector allocation and risk management strategies and related judgments about the value and potential appreciation of securities in which the Fund invests may prove to be incorrect. The Adviser may not successfully implement the Fund’s investment strategies and, as a result, the Fund may not meet its investment objective and/or underperform other investment vehicles with similar investment objectives and strategies.

 

Market Risk. The value of securities in the Fund’s portfolio will fluctuate and, as a result, the Fund’s NAV or market price per share may decline suddenly or over a sustained period of time. Factors such as domestic and foreign economic growth rates and market conditions, interest rate levels, exchange rates, trading and tariff events and political events may adversely affect the securities markets.

 

Medium (Mid) Capitalization Company Risk. To the extent the Fund invests in the stocks of mid-sized companies, the Fund may be subject to additional risks. The earnings and prospects of these companies are more volatile than larger companies. These companies may experience higher failure rates than larger companies. Mid- sized companies normally have a lower trading volume than larger companies, which may tend to make their market price fall more disproportionately than larger companies in response to selling pressures. Mid-sized companies may also have limited markets, product lines or financial resources and may lack management experience.

 

Technology Sector Risk. Technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Technology companies may have limited product lines, markets, financial resources or personnel. The products of technology companies may face obsolescence or adoption challenges due to rapid technological developments and frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the technology sector can be heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Investments in this sector can be highly volatile. Their values may be adversely affected by such factors as, for example, rapid technological change, changes in management personnel, changes in the competitive environment, and changes in investor sentiment.

 

For more information, please see the section of the Fund’s Prospectus entitled “Additional Information About the Fund’s Principal Investment Strategies and Related Risks.” 

Eventide International ETF | ADRs Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

ADRs Risk. ADRs, which are typically issued by a bank, are certificates that evidence ownership of shares of a foreign company and are alternatives to purchasing foreign securities directly in their national markets and currencies. ADRs are subject to the same risks as direct investment in foreign companies and involve risks that are not found in investments in U.S. companies. Although an ADR is priced in the U.S. dollar, movements in the exchange rate of the local currency versus the U.S. dollar are automatically reflected in the price of the ADR in U.S. dollars. Therefore, even if the price of the foreign security does not change on its market, if the exchange rate of the local currency relative to the U.S. dollar declines, the ADR price would decline by a similar measure.

 

Eventide International ETF | Authorized Participant Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Authorized Participant Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants. An “Authorized Participant” is a participant in the Continuous Net Settlement System of the National Securities Clearing Corporation or the Depository Trust Company (“DTC”) and that has executed a Participant Agreement with the Fund’s distributor (“Distributor”). To the extent these Authorized Participants exit the business or are unable to process creation and/or redemption orders and no other Authorized Participant is able to step forward to process creation and/or redemption orders, in either of these cases, Shares of the Fund may trade like closed-end fund shares at a discount to the Fund’s NAV per share and possibly face delisting by NYSE Arca, Inc. (the “Exchange”). These risks could cause intra-day bid/ask spreads for the Fund’s shares to widen.

Eventide International ETF | Equity Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Equity Securities Risk. The NAV and market price of the Fund will fluctuate based on changes in the value of the equity securities held by the Fund. Equity prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.

 

Eventide International ETF | Ethical Investment Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Ethical Investment Risk. The Fund’s ethical values screening criteria could cause it to underperform similar funds that do not have such screening criteria. This could be due to ethically acceptable companies falling out of favor with investors or failing to perform as well as companies that do not meet the Fund’s ethical screening guidelines.

 

To supplement its efforts in ethical investing, the Adviser may engage with portfolio companies to encourage consideration of corporate strategies aligned with the Adviser’s values, including pricing and/or business practices that may be beneficial within particular industries. The Adviser believes these activities will help promote ethical and effective corporate governance and long-term strategy for companies, and potentially create a positive effect on the particular businesses and/or industries, their consumers, and the Fund. There is no guarantee that the Adviser’s corporate engagements and related activities will achieve their intended results. There is a risk that the Adviser’s activities in this regard could limit the Fund’s investment universe and reduce the amount of profits that could be realized by affected companies, limiting the Fund’s investment returns. Furthermore, the U.S. government or any agency thereof, may enact rules or legislation that, directly or indirectly, materially impacts the Adviser’s activities in this regard, or materially affects the value of companies or opportunities for investment within particular industries.

 

Eventide International ETF | ETF Structure Risks [Member]  
Prospectus [Line Items]  
Risk [Text Block]

ETF Structure Risks. The Fund, and any ETFs the Fund may invest in, are structured as ETFs and as a result are subject to special risks, including:

 

Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” You may incur brokerage costs purchasing enough Shares to constitute a Creation Unit. Fund shares are typically bought and sold in the secondary market and investors typically pay brokerage commissions or other charges on these transactions.

 

Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for a Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares and will include a “bid/ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s NAV, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid and ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s domestic trading day, which could lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.
Eventide International ETF | Not Individually Redeemable [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” You may incur brokerage costs purchasing enough Shares to constitute a Creation Unit. Fund shares are typically bought and sold in the secondary market and investors typically pay brokerage commissions or other charges on these transactions.
Eventide International ETF | Trading Issues [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for a Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Eventide International ETF | Market Price Variance Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares and will include a “bid/ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s NAV, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid and ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s domestic trading day, which could lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

Eventide International ETF | Foreign Investment Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Foreign Investment Risk. Investments in foreign securities tend to be more volatile and less liquid than investments in U.S. securities because, among other things, they involve risks relating to political, social and economic developments abroad, including economic sanctions, as well as risks resulting from differences between the regulations and reporting standards and practices to which U.S. and foreign issuers are subject. Investing in foreign securities includes trading related risks (e.g., government supervision and regulation of foreign securities and currency markets, trading systems and brokers may be less than in the U.S., and foreign securities may be subject to foreign governmental restrictions such as exchange controls). The risks of investing in foreign securities are typically increased by investing in emerging market countries. Securities denominated in foreign currencies may be adversely affected by changes in currency rates and by substantial currency conversion costs.

Eventide International ETF | Industrials Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Industrials Sector Risk. The value of securities issued by companies in the industrials sector may be adversely affected by supply and demand related to their specific products or services and industrials sector products in general. The products of manufacturing companies may face obsolescence due to rapid technological developments and frequent new product introduction. Government regulations, world events, economic conditions and exchange rates may adversely affect the performance of companies in the industrials sector. Companies in the industrials sector may be adversely affected by liability for environmental damage and product liability claims. Companies in the industrials sector, particularly aerospace and defense companies, may also be adversely affected by government spending policies because companies involved in this sector rely to a significant extent on government demand for their products and services.

 

Eventide International ETF | Industry Concentration Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Industry Concentration Risk. The Fund may concentrate 25% to 35% of its total assets in a particular industry or group of industries to the extent that such industry or group of industries represents 20% or more of the Fund’s Strategy Benchmark. A fund that concentrates its investments in an industry or group of industries is more vulnerable to adverse market, economic, regulatory, political or other developments affecting such industry or group of industries than a fund that invests its assets more broadly.

 

Eventide International ETF | Investment Style Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Investment Style Risk. The type of securities in which the Fund focuses may underperform other assets or the overall market.

 

Eventide International ETF | Issuer Specific Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Issuer Specific Risk. The performance of the Fund depends on the performance of the issuers of the individual securities in which the Fund invests. Poor performance by any issuer may cause the value of its securities, and the value of the Fund’s shares, to decline. The value of a specific security can be more volatile than the market as a whole and can perform differently from the value of the market as a whole. The value of securities of smaller issuers can be more volatile than those of larger issuers. The value of certain types of securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments. Market prices of securities in broad market segments may be adversely affected by a prominent issuer having experienced losses, lack of earnings, failure to meet the market’s expectations with respect to new products or services, or even by factors wholly unrelated to the value or condition of the issuer, such as changes in interest rates.

 

Eventide International ETF | Large Capitalization Company Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Large Capitalization Company Risk. The Fund’s investment in larger companies is subject to the risk that larger companies are sometimes unable to attain the high growth rates of successful, smaller companies, especially during extended periods of economic expansion; and may be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes.

 

Eventide International ETF | Limited History of Operations Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Limited History of Operations Risk. The Fund has a limited history of operations for investors to evaluate.

 

Eventide International ETF | Management Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Management Risk. The Adviser’s reliance on its sector allocation and risk management strategies and related judgments about the value and potential appreciation of securities in which the Fund invests may prove to be incorrect. The Adviser may not successfully implement the Fund’s investment strategies and, as a result, the Fund may not meet its investment objective and/or underperform other investment vehicles with similar investment objectives and strategies.

 

Eventide International ETF | Market Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Market Risk. The value of securities in the Fund’s portfolio will fluctuate and, as a result, the Fund’s NAV or market price per share may decline suddenly or over a sustained period of time. Factors such as domestic and foreign economic growth rates and market conditions, interest rate levels, exchange rates, trading and tariff events and political events may adversely affect the securities markets.

 

Eventide International ETF | Medium (Mid) Capitalization Company Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Medium (Mid) Capitalization Company Risk. To the extent the Fund invests in the stocks of mid-sized companies, the Fund may be subject to additional risks. The earnings and prospects of these companies are more volatile than larger companies. These companies may experience higher failure rates than larger companies. Mid- sized companies normally have a lower trading volume than larger companies, which may tend to make their market price fall more disproportionately than larger companies in response to selling pressures. Mid-sized companies may also have limited markets, product lines or financial resources and may lack management experience.

Eventide International ETF | Technology Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Technology Sector Risk. Technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Technology companies may have limited product lines, markets, financial resources or personnel. The products of technology companies may face obsolescence or adoption challenges due to rapid technological developments and frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the technology sector can be heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Investments in this sector can be highly volatile. Their values may be adversely affected by such factors as, for example, rapid technological change, changes in management personnel, changes in the competitive environment, and changes in investor sentiment.

Eventide International ETF | Currency Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Currency Risk. If the Fund invests in securities that trade in, and receive revenues in, foreign currencies, it will be subject to the risk that those currencies will decline in value relative to the U.S. dollar. As a result, the Fund’s investments in foreign currency-denominated securities may reduce the Fund’s returns.

 

Eventide International ETF | Emerging Market Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Emerging Market Risk. Emerging market countries may have relatively unstable governments, weaker economies, and less-developed legal systems with fewer security holder rights. Securities law and the enforcement of systems of taxation in many emerging market countries may change quickly and unpredictably, and the ability to bring and enforce actions, or to obtain information needed to pursue or enforce such actions, may be limited. Companies in emerging market countries generally may be subject to less stringent regulatory, disclosure, financial reporting, accounting, auditing and recordkeeping standards than companies in more developed countries. As a result, information, including financial information, about such companies may be less available and reliable, which can impede the Fund’s ability to evaluate such companies. Emerging markets usually are subject to greater market volatility, political, social and economic instability, uncertainty regarding the existence of trading markets, and more governmental limitations on foreign investment than are more developed markets. Emerging market economies may be based on only a few industries and security issuers may be more susceptible to economic weakness and more likely to default. Emerging market securities also tend to be less liquid, and the prices of such securities tend to be more volatile than the securities of issuers located in developed markets. Investments in emerging markets securities may be subject to additional transaction costs, delays in settlement procedures, unexpected market closures, and lack of timely information.

 

Eventide International ETF | Financial Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Financial Sector Risk. Performance of companies in the financial sector may be adversely impacted by many factors, including, among others, government regulations, economic conditions, credit rating downgrades, changes in interest rates, and decreased liquidity in credit markets. The impact of more stringent capital requirements, recent or future regulation of any individual financial company, or recent or future regulation of the financial sector as a whole cannot be predicted.

 

Eventide Large Cap Growth ETF  
Prospectus [Line Items]  
Risk [Text Block]

As with any ETF, there is no guarantee that the Fund will achieve its objective. Investment markets are unpredictable and there will be certain market conditions where the Fund will not meet its investment objective and will lose money. The Fund’s net asset value (“NAV”), market price and returns will vary, and you could lose money on your investment in the Fund and those losses could be significant. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

 

The following identifies the principal risks of investing in the Fund. These risks could adversely affect the NAV, market price, total return and the value of the Fund and your investment.

 

Authorized Participant Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants. An “Authorized Participant” is a participant in the Continuous Net Settlement System of the National Securities Clearing Corporation or the Depository Trust Company (“DTC”) and that has executed a Participant Agreement with the Fund’s distributor (“Distributor”). To the extent these Authorized Participants exit the business or are unable to process creation and/or redemption orders and no other Authorized Participant is able to step forward to process creation and/or redemption orders, in either of these cases, Shares of the Fund may trade like closed-end fund shares at a discount to the Fund’s NAV per share and possibly face delisting by NYSE Arca, Inc. (the “Exchange”). These risks could cause intra-day bid/ask spreads for the Fund’s shares to widen.

 

Equity Securities Risk. The NAV and market price of the Fund will fluctuate based on changes in the value of the equity securities held by the Fund. Equity prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.

 

Ethical Investment Risk. The Fund’s ethical values screening criteria could cause it to underperform similar funds that do not have such screening criteria. This could be due to ethically acceptable companies falling out of favor with investors or failing to perform as well as companies that do not meet the Fund’s ethical screening guidelines.

 

To supplement its efforts in ethical investing, the Adviser may engage with portfolio companies to encourage consideration of corporate strategies aligned with the Adviser’s values, including pricing and/or business practices that may be beneficial within particular industries. The Adviser believes these activities will help promote ethical and effective corporate governance and long-term strategy for companies, and potentially create a positive effect on the particular businesses and/or industries, their consumers, and the Fund. There is no guarantee that the Adviser’s corporate engagements and related activities will achieve their intended results. There is a risk that the Adviser’s activities in this regard could limit the Fund’s investment universe and reduce the amount of profits that could be realized by affected companies, limiting the Fund’s investment returns. Furthermore, the U.S. government or any agency thereof, may enact rules or legislation that, directly or indirectly, materially impacts the Adviser’s activities in this regard, or materially affects the value of companies or opportunities for investment within particular industries.

 

ETF Structure Risks. The Fund, and any ETFs the Fund may invest in, are structured as ETFs and as a result are subject to special risks, including:

 

Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” You may incur brokerage costs purchasing enough Shares to constitute a Creation Unit. Fund shares are typically bought and sold in the secondary market and investors typically pay brokerage commissions or other charges on these transactions.

 

Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for a Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares and will include a “bid/ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s NAV, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid and ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s domestic trading day, which could lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

Growth Stock Risk. “Growth” stocks can react differently to issuer, political, market, and economic developments than the market as a whole and other types of stocks. “Growth” stocks also tend to be more expensive relative to their earnings or assets compared to other types of stocks. As a result, “growth” stocks tend to be sensitive to changes in their earnings and more volatile in price than the stock market as a whole. In addition, companies that the Adviser believes have significant growth potential are often companies with new, limited or cyclical product lines, markets or financial resources and the management of such companies may be dependent upon one or a few key people. The stocks of such companies can therefore be subject to more abrupt or erratic market movements than stocks of larger, more established companies or the stock market in general.

 

Industrials Sector Risk. The value of securities issued by companies in the industrials sector may be adversely affected by supply and demand related to their specific products or services and industrials sector products in general. The products of manufacturing companies may face obsolescence due to rapid technological developments and frequent new product introduction. Government regulations, world events, economic conditions and exchange rates may adversely affect the performance of companies in the industrials sector. Companies in the industrials sector may be adversely affected by liability for environmental damage and product liability claims. Companies in the industrials sector, particularly aerospace and defense companies, may also be adversely affected by government spending policies because companies involved in this sector rely to a significant extent on government demand for their products and services.

 

Industry Concentration Risk. The Fund may concentrate 25% to 35% of its total assets in a particular industry or group of industries to the extent that such industry or group of industries represents 20% or more of the Fund’s Strategy Benchmark. A fund that concentrates its investments in an industry or group of industries is more vulnerable to adverse market, economic, regulatory, political or other developments affecting such industry or group of industries than a fund that invests its assets more broadly.

 

Investment Style Risk. The type of securities in which the Fund focuses may underperform other assets or the overall market.

 

Issuer Specific Risk. The performance of the Fund depends on the performance of the issuers of the individual securities in which the Fund invests. Poor performance by any issuer may cause the value of its securities, and the value of the Fund’s shares, to decline. The value of a specific security can be more volatile than the market as a whole and can perform differently from the value of the market as a whole. The value of securities of smaller issuers can be more volatile than those of larger issuers. The value of certain types of securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments. Market prices of securities in broad market segments may be adversely affected by a prominent issuer having experienced losses, lack of earnings, failure to meet the market’s expectations with respect to new products or services, or even by factors wholly unrelated to the value or condition of the issuer, such as changes in interest rates.

 

Large Capitalization Company Risk. The Fund’s investment in larger companies is subject to the risk that larger companies are sometimes unable to attain the high growth rates of successful, smaller companies, especially during extended periods of economic expansion; and may be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes.

 

Limited History of Operations Risk. The Fund has a limited history of operations for investors to evaluate.

 

Management Risk. The Adviser’s reliance on its sector allocation and risk management strategies and related judgments about the value and potential appreciation of securities in which the Fund invests may prove to be incorrect. The Adviser may not successfully implement the Fund’s investment strategies and, as a result, the Fund may not meet its investment objective and/or underperform other investment vehicles with similar investment objectives and strategies.

 

Market Risk. The value of securities in the Fund’s portfolio will fluctuate and, as a result, the Fund’s NAV or market price per share may decline suddenly or over a sustained period of time. Factors such as domestic and foreign economic growth rates and market conditions, interest rate levels, trading and tariff events and political events may adversely affect the securities markets.

 

Medium (Mid) Capitalization Company Risk. To the extent the Fund invests in the stocks of mid-sized companies, the Fund may be subject to additional risks. The earnings and prospects of these companies are more volatile than larger companies. These companies may experience higher failure rates than larger companies. Mid-sized companies normally have a lower trading volume than larger companies, which may tend to make their market price fall more disproportionately than larger companies in response to selling pressures. Mid-sized companies may also have limited markets, product lines or financial resources and may lack management experience.

 

Real Estate Risk. The Fund is subject to the risks of the real estate market as a whole, such as taxation, regulations and economic and political factors that negatively impact the real estate market and the direct ownership of real estate. These may include decreases in real estate values, overbuilding, rising operating costs, interest rates and property taxes. In addition, some real estate related investments are not fully diversified and are subject to the risks associated with financing a limited number of projects.

 

REIT Risk. The Fund’s investments in REITs are subject to the same risks as direct investments in real estate, including sensitivity to general economic downturns and the volatility of local real estate markets. REITs may have limited financial resources and their securities may trade infrequently and in limited volume, and thus they may be more volatile than other securities. The liquidity of REITs may change dramatically over time.

 

Small Capitalization Company Risk. To the extent the Fund invests in the stocks of smaller-sized companies, the Fund may be subject to additional risks. The earnings and prospects of these companies are more volatile than larger companies. Smaller-sized companies may experience higher failure rates than do larger companies. The trading volume of securities of smaller-sized companies is normally less than that of larger companies and, therefore, may disproportionately affect their market price, tending to make them fall more in response to selling pressure than is the case with larger companies. Smaller-sized companies may have limited markets, product lines or financial resources and may lack management experience.

 

Technology Sector Risk. Technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Technology companies may have limited product lines, markets, financial resources or personnel. The products of technology companies may face obsolescence or adoption challenges due to rapid technological developments and frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the technology sector can be heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Investments in this sector can be highly volatile. Their values may be adversely affected by such factors as, for example, rapid technological change, changes in management personnel, changes in the competitive environment, and changes in investor sentiment.

 

For more information, please see the section of the Fund’s Prospectus entitled “Additional Information About the Fund’s Principal Investment Strategies and Related Risks.” 

Eventide Large Cap Growth ETF | Authorized Participant Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Authorized Participant Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants. An “Authorized Participant” is a participant in the Continuous Net Settlement System of the National Securities Clearing Corporation or the Depository Trust Company (“DTC”) and that has executed a Participant Agreement with the Fund’s distributor (“Distributor”). To the extent these Authorized Participants exit the business or are unable to process creation and/or redemption orders and no other Authorized Participant is able to step forward to process creation and/or redemption orders, in either of these cases, Shares of the Fund may trade like closed-end fund shares at a discount to the Fund’s NAV per share and possibly face delisting by NYSE Arca, Inc. (the “Exchange”). These risks could cause intra-day bid/ask spreads for the Fund’s shares to widen.

 

Eventide Large Cap Growth ETF | Equity Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Equity Securities Risk. The NAV and market price of the Fund will fluctuate based on changes in the value of the equity securities held by the Fund. Equity prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.

 

Eventide Large Cap Growth ETF | Ethical Investment Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Ethical Investment Risk. The Fund’s ethical values screening criteria could cause it to underperform similar funds that do not have such screening criteria. This could be due to ethically acceptable companies falling out of favor with investors or failing to perform as well as companies that do not meet the Fund’s ethical screening guidelines.

Eventide Large Cap Growth ETF | ETF Structure Risks [Member]  
Prospectus [Line Items]  
Risk [Text Block]

ETF Structure Risks. The Fund, and any ETFs the Fund may invest in, are structured as ETFs and as a result are subject to special risks, including:

 

Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” You may incur brokerage costs purchasing enough Shares to constitute a Creation Unit. Fund shares are typically bought and sold in the secondary market and investors typically pay brokerage commissions or other charges on these transactions.

 

Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for a Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares and will include a “bid/ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s NAV, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid and ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s domestic trading day, which could lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.
Eventide Large Cap Growth ETF | Not Individually Redeemable [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” You may incur brokerage costs purchasing enough Shares to constitute a Creation Unit. Fund shares are typically bought and sold in the secondary market and investors typically pay brokerage commissions or other charges on these transactions.

 

Eventide Large Cap Growth ETF | Trading Issues [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for a Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Eventide Large Cap Growth ETF | Market Price Variance Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares and will include a “bid/ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s NAV, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid and ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s domestic trading day, which could lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.
Eventide Large Cap Growth ETF | Industrials Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Industrials Sector Risk. The value of securities issued by companies in the industrials sector may be adversely affected by supply and demand related to their specific products or services and industrials sector products in general. The products of manufacturing companies may face obsolescence due to rapid technological developments and frequent new product introduction. Government regulations, world events, economic conditions and exchange rates may adversely affect the performance of companies in the industrials sector. Companies in the industrials sector may be adversely affected by liability for environmental damage and product liability claims. Companies in the industrials sector, particularly aerospace and defense companies, may also be adversely affected by government spending policies because companies involved in this sector rely to a significant extent on government demand for their products and services.

 

Eventide Large Cap Growth ETF | Industry Concentration Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Industry Concentration Risk. The Fund may concentrate 25% to 35% of its total assets in a particular industry or group of industries to the extent that such industry or group of industries represents 20% or more of the Fund’s Strategy Benchmark. A fund that concentrates its investments in an industry or group of industries is more vulnerable to adverse market, economic, regulatory, political or other developments affecting such industry or group of industries than a fund that invests its assets more broadly.

 

Eventide Large Cap Growth ETF | Investment Style Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Investment Style Risk. The type of securities in which the Fund focuses may underperform other assets or the overall market.

 

Eventide Large Cap Growth ETF | Issuer Specific Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Issuer Specific Risk. The performance of the Fund depends on the performance of the issuers of the individual securities in which the Fund invests. Poor performance by any issuer may cause the value of its securities, and the value of the Fund’s shares, to decline. The value of a specific security can be more volatile than the market as a whole and can perform differently from the value of the market as a whole. The value of securities of smaller issuers can be more volatile than those of larger issuers. The value of certain types of securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments. Market prices of securities in broad market segments may be adversely affected by a prominent issuer having experienced losses, lack of earnings, failure to meet the market’s expectations with respect to new products or services, or even by factors wholly unrelated to the value or condition of the issuer, such as changes in interest rates.

 

Eventide Large Cap Growth ETF | Large Capitalization Company Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Large Capitalization Company Risk. The Fund’s investment in larger companies is subject to the risk that larger companies are sometimes unable to attain the high growth rates of successful, smaller companies, especially during extended periods of economic expansion; and may be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes.

 

Eventide Large Cap Growth ETF | Limited History of Operations Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Limited History of Operations Risk. The Fund has a limited history of operations for investors to evaluate.

 

Eventide Large Cap Growth ETF | Management Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Management Risk. The Adviser’s reliance on its sector allocation and risk management strategies and related judgments about the value and potential appreciation of securities in which the Fund invests may prove to be incorrect. The Adviser may not successfully implement the Fund’s investment strategies and, as a result, the Fund may not meet its investment objective and/or underperform other investment vehicles with similar investment objectives and strategies.

Eventide Large Cap Growth ETF | Market Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Market Risk. The value of securities in the Fund’s portfolio will fluctuate and, as a result, the Fund’s NAV or market price per share may decline suddenly or over a sustained period of time. Factors such as domestic and foreign economic growth rates and market conditions, interest rate levels, trading and tariff events and political events may adversely affect the securities markets.

 

Eventide Large Cap Growth ETF | Medium (Mid) Capitalization Company Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Medium (Mid) Capitalization Company Risk. To the extent the Fund invests in the stocks of mid-sized companies, the Fund may be subject to additional risks. The earnings and prospects of these companies are more volatile than larger companies. These companies may experience higher failure rates than larger companies. Mid-sized companies normally have a lower trading volume than larger companies, which may tend to make their market price fall more disproportionately than larger companies in response to selling pressures. Mid-sized companies may also have limited markets, product lines or financial resources and may lack management experience.

 

Eventide Large Cap Growth ETF | REIT Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

REIT Risk. The Fund’s investments in REITs are subject to the same risks as direct investments in real estate, including sensitivity to general economic downturns and the volatility of local real estate markets. REITs may have limited financial resources and their securities may trade infrequently and in limited volume, and thus they may be more volatile than other securities. The liquidity of REITs may change dramatically over time.

 

Eventide Large Cap Growth ETF | Technology Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Technology Sector Risk. Technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Technology companies may have limited product lines, markets, financial resources or personnel. The products of technology companies may face obsolescence or adoption challenges due to rapid technological developments and frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the technology sector can be heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Investments in this sector can be highly volatile. Their values may be adversely affected by such factors as, for example, rapid technological change, changes in management personnel, changes in the competitive environment, and changes in investor sentiment.

Eventide Large Cap Growth ETF | Growth Stock Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Growth Stock Risk. “Growth” stocks can react differently to issuer, political, market, and economic developments than the market as a whole and other types of stocks. “Growth” stocks also tend to be more expensive relative to their earnings or assets compared to other types of stocks. As a result, “growth” stocks tend to be sensitive to changes in their earnings and more volatile in price than the stock market as a whole. In addition, companies that the Adviser believes have significant growth potential are often companies with new, limited or cyclical product lines, markets or financial resources and the management of such companies may be dependent upon one or a few key people. The stocks of such companies can therefore be subject to more abrupt or erratic market movements than stocks of larger, more established companies or the stock market in general.

 

Eventide Large Cap Growth ETF | Real Estate Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Real Estate Risk. The Fund is subject to the risks of the real estate market as a whole, such as taxation, regulations and economic and political factors that negatively impact the real estate market and the direct ownership of real estate. These may include decreases in real estate values, overbuilding, rising operating costs, interest rates and property taxes. In addition, some real estate related investments are not fully diversified and are subject to the risks associated with financing a limited number of projects.

 

Eventide Large Cap Growth ETF | Small Capitalization Company Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Small Capitalization Company Risk. To the extent the Fund invests in the stocks of smaller-sized companies, the Fund may be subject to additional risks. The earnings and prospects of these companies are more volatile than larger companies. Smaller-sized companies may experience higher failure rates than do larger companies. The trading volume of securities of smaller-sized companies is normally less than that of larger companies and, therefore, may disproportionately affect their market price, tending to make them fall more in response to selling pressure than is the case with larger companies. Smaller-sized companies may have limited markets, product lines or financial resources and may lack management experience.

 

Eventide Large Cap Value ETF  
Prospectus [Line Items]  
Risk [Text Block]

As with any ETF, there is no guarantee that the Fund will achieve its objective. Investment markets are unpredictable and there will be certain market conditions where the Fund will not meet its investment objective and will lose money. The Fund’s net asset value (“NAV”), market price and returns will vary, and you could lose money on your investment in the Fund and those losses could be significant. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

 

The following identifies the principal risks of investing in the Fund. These risks could adversely affect the NAV, market price, total return and the value of the Fund and your investment.

 

Authorized Participant Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants. An “Authorized Participant” is a participant in the Continuous Net Settlement System of the National Securities Clearing Corporation or the Depository Trust Company (“DTC”) and that has executed a Participant Agreement with the Fund’s distributor (“Distributor”). To the extent these Authorized Participants exit the business or are unable to process creation and/or redemption orders and no other Authorized Participant is able to step forward to process creation and/or redemption orders, in either of these cases, Shares of the Fund may trade like closed-end fund shares at a discount to the Fund’s NAV per share and possibly face delisting by NYSE Arca, Inc. (the “Exchange”). These risks could cause intra-day bid/ask spreads for the Fund’s shares to widen.

 

Equity Securities Risk. The NAV and market price of the Fund will fluctuate based on changes in the value of the equity securities held by the Fund. Equity prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.

 

Ethical Investment Risk. The Fund’s ethical values screening criteria could cause it to underperform similar funds that do not have such screening criteria. This could be due to ethically acceptable companies falling out of favor with investors or failing to perform as well as companies that do not meet the Fund’s ethical screening guidelines.

 

To supplement its efforts in ethical investing, the Adviser may engage with portfolio companies to encourage consideration of corporate strategies aligned with the Adviser’s values, including pricing and/or business practices that may be beneficial within particular industries. The Adviser believes these activities will help promote ethical and effective corporate governance and long-term strategy for companies, and potentially create a positive effect on the particular businesses and/or industries, their consumers, and the Fund. There is no guarantee that the Adviser’s corporate engagements and related activities will achieve their intended results. There is a risk that the Adviser’s activities in this regard could limit the Fund’s investment universe and reduce the amount of profits that could be realized by affected companies, limiting the Fund’s investment returns. Furthermore, the U.S. government or any agency thereof, may enact rules or legislation that, directly or indirectly, materially impacts the Adviser’s activities in this regard, or materially affects the value of companies or opportunities for investment within particular industries.

 

ETF Structure Risks. The Fund, and any ETFs the Fund may invest in, are structured as ETFs and as a result are subject to special risks, including:

 

Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” You may incur brokerage costs purchasing enough Shares to constitute a Creation Unit. Fund shares are typically bought and sold in the secondary market and investors typically pay brokerage commissions or other charges on these transactions.

 

Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for a Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares and will include a “bid/ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s NAV, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid and ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s domestic trading day, which could lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

Financial Sector Risk. Performance of companies in the financial sector may be adversely impacted by many factors, including, among others, government regulations, economic conditions, credit rating downgrades, changes in interest rates, and decreased liquidity in credit markets. The impact of more stringent capital requirements, recent or future regulation of any individual financial company, or recent or future regulation of the financial sector as a whole cannot be predicted.

 

Industrials Sector Risk. The value of securities issued by companies in the industrials sector may be adversely affected by supply and demand related to their specific products or services and industrials sector products in general. The products of manufacturing companies may face obsolescence due to rapid technological developments and frequent new product introduction. Government regulations, world events, economic conditions and exchange rates may adversely affect the performance of companies in the industrials sector. Companies in the industrials sector may be adversely affected by liability for environmental damage and product liability claims. Companies in the industrials sector, particularly aerospace and defense companies, may also be adversely affected by government spending policies because companies involved in this sector rely to a significant extent on government demand for their products and services.

 

Industry Concentration Risk. The Fund may concentrate 25% to 35% of its total assets in a particular industry or group of industries to the extent that such industry or group of industries represents 20% or more of the Fund’s Strategy Benchmark. A fund that concentrates its investments in an industry or group of industries is more vulnerable to adverse market, economic, regulatory, political or other developments affecting such industry or group of industries than a fund that invests its assets more broadly.

 

Investment Style Risk. The type of securities in which the Fund focuses may underperform other assets or the overall market.

 

Issuer Specific Risk. The performance of the Fund depends on the performance of the issuers of the individual securities in which the Fund invests. Poor performance by any issuer may cause the value of its securities, and the value of the Fund’s shares, to decline. The value of a specific security can be more volatile than the market as a whole and can perform differently from the value of the market as a whole. The value of securities of smaller issuers can be more volatile than those of larger issuers. The value of certain types of securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments. Market prices of securities in broad market segments may be adversely affected by a prominent issuer having experienced losses, lack of earnings, failure to meet the market’s expectations with respect to new products or services, or even by factors wholly unrelated to the value or condition of the issuer, such as changes in interest rates.

 

Large Capitalization Company Risk. The Fund’s investment in larger companies is subject to the risk that larger companies are sometimes unable to attain the high growth rates of successful, smaller companies, especially during extended periods of economic expansion; and may be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes.

 

Limited History of Operations Risk. The Fund has a limited history of operations for investors to evaluate.

 

Management Risk. The Adviser’s reliance on its sector allocation and risk management strategies and related judgments about the value and potential appreciation of securities in which the Fund invests may prove to be incorrect. The Adviser may not successfully implement the Fund’s investment strategies and, as a result, the Fund may not meet its investment objective and/or underperform other investment vehicles with similar investment objectives and strategies.

 

Market Risk. The value of securities in the Fund’s portfolio will fluctuate and, as a result, the Fund’s NAV or market price per share may decline suddenly or over a sustained period of time. Factors such as domestic and foreign economic growth rates and market conditions, interest rate levels, trading and tariff events and political events may adversely affect the securities markets.

 

Medium (Mid) Capitalization Company Risk. To the extent the Fund invests in the stocks of mid-sized companies, the Fund may be subject to additional risks. The earnings and prospects of these companies are more volatile than larger companies. These companies may experience higher failure rates than larger companies. Mid- sized companies normally have a lower trading volume than larger companies, which may tend to make their market price fall more disproportionately than larger companies in response to selling pressures. Mid-sized companies may also have limited markets, product lines or financial resources and may lack management experience.

 

Real Estate Risk. The Fund is subject to the risks of the real estate market as a whole, such as taxation, regulations and economic and political factors that negatively impact the real estate market and the direct ownership of real estate. These may include decreases in real estate values, overbuilding, rising operating costs, interest rates and property taxes. In addition, some real estate related investments are not fully diversified and are subject to the risks associated with financing a limited number of projects.

 

REIT Risk. The Fund’s investments in REITs are subject to the same risks as direct investments in real estate, including sensitivity to general economic downturns and the volatility of local real estate markets. REITs may have limited financial resources and their securities may trade infrequently and in limited volume, and thus they may be more volatile than other securities. The liquidity of REITs may change dramatically over time.

 

Small Capitalization Company Risk. To the extent the Fund invests in the stocks of smaller-sized companies, the Fund may be subject to additional risks. The earnings and prospects of these companies are more volatile than larger companies. Smaller-sized companies may experience higher failure rates than do larger companies. The trading volume of securities of smaller-sized companies is normally less than that of larger companies and, therefore, may disproportionately affect their market price, tending to make them fall more in response to selling pressure than is the case with larger companies. Smaller-sized companies may have limited markets, product lines or financial resources and may lack management experience.

 

Value Investing Risk. A value style of investing focuses on undervalued companies with characteristics for improved valuations. “Value” securities are subject to the risk that their valuations never improve or that the returns on “value” securities are less than returns on other styles of investing or the overall stock market. Thus, the value of the Fund’s investments will vary and at times may be lower than that of other types of investments. Historically, value investments have performed best during periods of economic recovery. Therefore, the value investing style may over time go in and out of favor. Value stocks also may decline in price, even though in theory they are already underpriced.

 

For more information, please see the section of the Fund’s Prospectus entitled “Additional Information About the Fund’s Principal Investment Strategies and Related Risks.” 

Eventide Large Cap Value ETF | Authorized Participant Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Authorized Participant Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants. An “Authorized Participant” is a participant in the Continuous Net Settlement System of the National Securities Clearing Corporation or the Depository Trust Company (“DTC”) and that has executed a Participant Agreement with the Fund’s distributor (“Distributor”). To the extent these Authorized Participants exit the business or are unable to process creation and/or redemption orders and no other Authorized Participant is able to step forward to process creation and/or redemption orders, in either of these cases, Shares of the Fund may trade like closed-end fund shares at a discount to the Fund’s NAV per share and possibly face delisting by NYSE Arca, Inc. (the “Exchange”). These risks could cause intra-day bid/ask spreads for the Fund’s shares to widen.

 

Eventide Large Cap Value ETF | Equity Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Equity Securities Risk. The NAV and market price of the Fund will fluctuate based on changes in the value of the equity securities held by the Fund. Equity prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.

 

Eventide Large Cap Value ETF | Ethical Investment Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Ethical Investment Risk. The Fund’s ethical values screening criteria could cause it to underperform similar funds that do not have such screening criteria. This could be due to ethically acceptable companies falling out of favor with investors or failing to perform as well as companies that do not meet the Fund’s ethical screening guidelines.

Eventide Large Cap Value ETF | ETF Structure Risks [Member]  
Prospectus [Line Items]  
Risk [Text Block]

ETF Structure Risks. The Fund, and any ETFs the Fund may invest in, are structured as ETFs and as a result are subject to special risks, including:

 

Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” You may incur brokerage costs purchasing enough Shares to constitute a Creation Unit. Fund shares are typically bought and sold in the secondary market and investors typically pay brokerage commissions or other charges on these transactions.

 

Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for a Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares and will include a “bid/ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s NAV, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid and ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s domestic trading day, which could lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.
Eventide Large Cap Value ETF | Not Individually Redeemable [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” You may incur brokerage costs purchasing enough Shares to constitute a Creation Unit. Fund shares are typically bought and sold in the secondary market and investors typically pay brokerage commissions or other charges on these transactions.

 

Eventide Large Cap Value ETF | Trading Issues [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for a Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Eventide Large Cap Value ETF | Market Price Variance Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares and will include a “bid/ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s NAV, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid and ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s domestic trading day, which could lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.
Eventide Large Cap Value ETF | Industrials Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Industrials Sector Risk. The value of securities issued by companies in the industrials sector may be adversely affected by supply and demand related to their specific products or services and industrials sector products in general. The products of manufacturing companies may face obsolescence due to rapid technological developments and frequent new product introduction. Government regulations, world events, economic conditions and exchange rates may adversely affect the performance of companies in the industrials sector. Companies in the industrials sector may be adversely affected by liability for environmental damage and product liability claims. Companies in the industrials sector, particularly aerospace and defense companies, may also be adversely affected by government spending policies because companies involved in this sector rely to a significant extent on government demand for their products and services.

 

Eventide Large Cap Value ETF | Industry Concentration Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Industry Concentration Risk. The Fund may concentrate 25% to 35% of its total assets in a particular industry or group of industries to the extent that such industry or group of industries represents 20% or more of the Fund’s Strategy Benchmark. A fund that concentrates its investments in an industry or group of industries is more vulnerable to adverse market, economic, regulatory, political or other developments affecting such industry or group of industries than a fund that invests its assets more broadly.

 

Eventide Large Cap Value ETF | Investment Style Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Investment Style Risk. The type of securities in which the Fund focuses may underperform other assets or the overall market.

 

Eventide Large Cap Value ETF | Issuer Specific Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Issuer Specific Risk. The performance of the Fund depends on the performance of the issuers of the individual securities in which the Fund invests. Poor performance by any issuer may cause the value of its securities, and the value of the Fund’s shares, to decline. The value of a specific security can be more volatile than the market as a whole and can perform differently from the value of the market as a whole. The value of securities of smaller issuers can be more volatile than those of larger issuers. The value of certain types of securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments. Market prices of securities in broad market segments may be adversely affected by a prominent issuer having experienced losses, lack of earnings, failure to meet the market’s expectations with respect to new products or services, or even by factors wholly unrelated to the value or condition of the issuer, such as changes in interest rates.

 

Eventide Large Cap Value ETF | Large Capitalization Company Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Large Capitalization Company Risk. The Fund’s investment in larger companies is subject to the risk that larger companies are sometimes unable to attain the high growth rates of successful, smaller companies, especially during extended periods of economic expansion; and may be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes.

 

Eventide Large Cap Value ETF | Limited History of Operations Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Limited History of Operations Risk. The Fund has a limited history of operations for investors to evaluate.

 

Eventide Large Cap Value ETF | Management Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Management Risk. The Adviser’s reliance on its sector allocation and risk management strategies and related judgments about the value and potential appreciation of securities in which the Fund invests may prove to be incorrect. The Adviser may not successfully implement the Fund’s investment strategies and, as a result, the Fund may not meet its investment objective and/or underperform other investment vehicles with similar investment objectives and strategies.

 

Eventide Large Cap Value ETF | Market Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Market Risk. The value of securities in the Fund’s portfolio will fluctuate and, as a result, the Fund’s NAV or market price per share may decline suddenly or over a sustained period of time. Factors such as domestic and foreign economic growth rates and market conditions, interest rate levels, trading and tariff events and political events may adversely affect the securities markets.

Eventide Large Cap Value ETF | Medium (Mid) Capitalization Company Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Medium (Mid) Capitalization Company Risk. To the extent the Fund invests in the stocks of mid-sized companies, the Fund may be subject to additional risks. The earnings and prospects of these companies are more volatile than larger companies. These companies may experience higher failure rates than larger companies. Mid- sized companies normally have a lower trading volume than larger companies, which may tend to make their market price fall more disproportionately than larger companies in response to selling pressures. Mid-sized companies may also have limited markets, product lines or financial resources and may lack management experience.

 

Eventide Large Cap Value ETF | REIT Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

REIT Risk. The Fund’s investments in REITs are subject to the same risks as direct investments in real estate, including sensitivity to general economic downturns and the volatility of local real estate markets. REITs may have limited financial resources and their securities may trade infrequently and in limited volume, and thus they may be more volatile than other securities. The liquidity of REITs may change dramatically over time.

 

Eventide Large Cap Value ETF | Financial Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Financial Sector Risk. Performance of companies in the financial sector may be adversely impacted by many factors, including, among others, government regulations, economic conditions, credit rating downgrades, changes in interest rates, and decreased liquidity in credit markets. The impact of more stringent capital requirements, recent or future regulation of any individual financial company, or recent or future regulation of the financial sector as a whole cannot be predicted.

 

Eventide Large Cap Value ETF | Real Estate Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Real Estate Risk. The Fund is subject to the risks of the real estate market as a whole, such as taxation, regulations and economic and political factors that negatively impact the real estate market and the direct ownership of real estate. These may include decreases in real estate values, overbuilding, rising operating costs, interest rates and property taxes. In addition, some real estate related investments are not fully diversified and are subject to the risks associated with financing a limited number of projects.

 

Eventide Large Cap Value ETF | Small Capitalization Company Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Small Capitalization Company Risk. To the extent the Fund invests in the stocks of smaller-sized companies, the Fund may be subject to additional risks. The earnings and prospects of these companies are more volatile than larger companies. Smaller-sized companies may experience higher failure rates than do larger companies. The trading volume of securities of smaller-sized companies is normally less than that of larger companies and, therefore, may disproportionately affect their market price, tending to make them fall more in response to selling pressure than is the case with larger companies. Smaller-sized companies may have limited markets, product lines or financial resources and may lack management experience.

 

Eventide Large Cap Value ETF | Value Investing Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Value Investing Risk. A value style of investing focuses on undervalued companies with characteristics for improved valuations. “Value” securities are subject to the risk that their valuations never improve or that the returns on “value” securities are less than returns on other styles of investing or the overall stock market. Thus, the value of the Fund’s investments will vary and at times may be lower than that of other types of investments. Historically, value investments have performed best during periods of economic recovery. Therefore, the value investing style may over time go in and out of favor. Value stocks also may decline in price, even though in theory they are already underpriced.

Eventide Small Cap ETF  
Prospectus [Line Items]  
Risk [Text Block]

As with any ETF, there is no guarantee that the Fund will achieve its objective. Investment markets are unpredictable and there will be certain market conditions where the Fund will not meet its investment objective and will lose money. The Fund’s net asset value (“NAV”), market price and returns will vary, and you could lose money on your investment in the Fund and those losses could be significant. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

 

The following identifies the principal risks of investing in the Fund. These risks could adversely affect the NAV, market price, total return and the value of the Fund and your investment.

 

Authorized Participant Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants. An “Authorized Participant” is a participant in the Continuous Net Settlement System of the National Securities Clearing Corporation or the Depository Trust Company (“DTC”) and that has executed a Participant Agreement with the Fund’s distributor (“Distributor”). To the extent these Authorized Participants exit the business or are unable to process creation and/or redemption orders and no other Authorized Participant is able to step forward to process creation and/or redemption orders, in either of these cases, Shares of the Fund may trade like closed-end fund shares at a discount to the Fund’s NAV per share and possibly face delisting by NYSE Arca, Inc. (the “Exchange”). These risks could cause intra-day bid/ask spreads for the Fund’s shares to widen.

 

Equity Securities Risk. The NAV and market price of the Fund will fluctuate based on changes in the value of the equity securities held by the Fund. Equity prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.

 

Ethical Investment Risk. The Fund’s ethical values screening criteria could cause it to underperform similar funds that do not have such screening criteria. This could be due to ethically acceptable companies falling out of favor with investors or failing to perform as well as companies that do not meet the Fund’s ethical screening guidelines.

 

To supplement its efforts in ethical investing, the Adviser may engage with portfolio companies to encourage consideration of corporate strategies aligned with the Adviser’s values, including pricing and/or business practices that may be beneficial within particular industries. The Adviser believes these activities will help promote ethical and effective corporate governance and long-term strategy for companies, and potentially create a positive effect on the particular businesses and/or industries, their consumers, and the Fund. There is no guarantee that the Adviser’s corporate engagements and related activities will achieve their intended results. There is a risk that the Adviser’s activities in this regard could limit the Fund’s investment universe and reduce the amount of profits that could be realized by affected companies, limiting the Fund’s investment returns. Furthermore, the U.S. government or any agency thereof, may enact rules or legislation that, directly or indirectly, materially impacts the Adviser’s activities in this regard, or materially affects the value of companies or opportunities for investment within particular industries.

 

ETF Structure Risks. The Fund, and any ETFs the Fund may invest in, are structured as ETFs and as a result are subject to special risks, including:

 

Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” You may incur brokerage costs purchasing enough Shares to constitute a Creation Unit. Fund shares are typically bought and sold in the secondary market and investors typically pay brokerage commissions or other charges on these transactions.

 

Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for a Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares and will include a “bid/ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s NAV, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid and ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s domestic trading day, which could lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

Financial Sector Risk. Performance of companies in the financial sector may be adversely impacted by many factors, including, among others, government regulations, economic conditions, credit rating downgrades, changes in interest rates, and decreased liquidity in credit markets. The impact of more stringent capital requirements, recent or future regulation of any individual financial company, or recent or future regulation of the financial sector as a whole cannot be predicted.

 

Healthcare Sector Risk. The healthcare sector may be affected by government regulations and government healthcare programs, increases or decreases in the cost of medical products and services and product liability claims, among other factors. Many healthcare companies are heavily dependent on patent protection, and the expiration of a company’s patent may adversely affect that company’s profitability. Healthcare companies are subject to competitive forces that may result in price discounting and may be thinly capitalized and susceptible to product obsolescence.

 

Industrials Sector Risk. The value of securities issued by companies in the industrials sector may be adversely affected by supply and demand related to their specific products or services and industrials sector products in general. The products of manufacturing companies may face obsolescence due to rapid technological developments and frequent new product introduction. Government regulations, world events, economic conditions and exchange rates may adversely affect the performance of companies in the industrials sector. Companies in the industrials sector may be adversely affected by liability for environmental damage and product liability claims. Companies in the industrials sector, particularly aerospace and defense companies, may also be adversely affected by government spending policies because companies involved in this sector rely to a significant extent on government demand for their products and services.

 

Industry Concentration Risk. The Fund may concentrate 25% to 35% of its total assets in a particular industry or group of industries to the extent that such industry or group of industries represents 20% or more of the Fund’s Strategy Benchmark. A fund that concentrates its investments in an industry or group of industries is more vulnerable to adverse market, economic, regulatory, political or other developments affecting such industry or group of industries than a fund that invests its assets more broadly.

 

Investment Style Risk. The type of securities in which the Fund focuses may underperform other assets or the overall market.

 

Issuer Specific Risk. The performance of the Fund depends on the performance of the issuers of the individual securities in which the Fund invests. Poor performance by any issuer may cause the value of its securities, and the value of the Fund’s Shares, to decline. The value of a specific security can be more volatile than the market as a whole and can perform differently from the value of the market as a whole. The value of securities of smaller issuers can be more volatile than those of larger issuers. The value of certain types of securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments. Market prices of securities in broad market segments may be adversely affected by a prominent issuer having experienced losses, lack of earnings, failure to meet the market’s expectations with respect to new products or services, or even by factors wholly unrelated to the value or condition of the issuer, such as changes in interest rates.

 

Limited History of Operations Risk. The Fund has a limited history of operations for investors to evaluate.

 

Management Risk. The Adviser’s reliance on its sector allocation and risk management strategies and related judgments about the value and potential appreciation of securities in which the Fund invests may prove to be incorrect. The Adviser may not successfully implement the Fund’s investment strategies and, as a result, the Fund may not meet its investment objective and/or underperform other investment vehicles with similar investment objectives and strategies.

 

Market Risk. The value of securities in the Fund’s portfolio will fluctuate and, as a result, the Fund’s NAV or market price per share may decline suddenly or over a sustained period of time. Factors such as domestic and foreign economic growth rates and market conditions, interest rate levels, trading and tariff events and political events may adversely affect the securities markets.

 

Real Estate Risk. The Fund is subject to the risks of the real estate market as a whole, such as taxation, regulations and economic and political factors that negatively impact the real estate market and the direct ownership of real estate. These may include decreases in real estate values, overbuilding, rising operating costs, interest rates and property taxes. In addition, some real estate related investments are not fully diversified and are subject to the risks associated with financing a limited number of projects.

 

REIT Risk. The Fund’s investments in REITs are subject to the same risks as direct investments in real estate, including sensitivity to general economic downturns and the volatility of local real estate markets. REITs may have limited financial resources and their securities may trade infrequently and in limited volume, and thus they may be more volatile than other securities. The liquidity of REITs may change dramatically over time.

 

Small Capitalization Company Risk. To the extent the Fund invests in the stocks of smaller-sized companies, the Fund may be subject to additional risks. The earnings and prospects of these companies are more volatile than larger companies. Smaller-sized companies may experience higher failure rates than do larger companies. The trading volume of securities of smaller-sized companies is normally less than that of larger companies and, therefore, may disproportionately affect their market price, tending to make them fall more in response to selling pressure than is the case with larger companies. Smaller-sized companies may have limited markets, product lines or financial resources and may lack management experience.

 

Technology Sector Risk. Technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Technology companies may have limited product lines, markets, financial resources or personnel. The products of technology companies may face obsolescence or adoption challenges due to rapid technological developments and frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the technology sector can be heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Investments in this sector can be highly volatile. Their values may be adversely affected by such factors as, for example, rapid technological change, changes in management personnel, changes in the competitive environment, and changes in investor sentiment.

 

For more information, please see the section of the Fund’s Prospectus entitled “Additional Information About the Fund’s Principal Investment Strategies and Related Risks.” 

Eventide Small Cap ETF | Authorized Participant Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Authorized Participant Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants. An “Authorized Participant” is a participant in the Continuous Net Settlement System of the National Securities Clearing Corporation or the Depository Trust Company (“DTC”) and that has executed a Participant Agreement with the Fund’s distributor (“Distributor”). To the extent these Authorized Participants exit the business or are unable to process creation and/or redemption orders and no other Authorized Participant is able to step forward to process creation and/or redemption orders, in either of these cases, Shares of the Fund may trade like closed-end fund shares at a discount to the Fund’s NAV per share and possibly face delisting by NYSE Arca, Inc. (the “Exchange”). These risks could cause intra-day bid/ask spreads for the Fund’s shares to widen.

 

Eventide Small Cap ETF | Equity Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Equity Securities Risk. The NAV and market price of the Fund will fluctuate based on changes in the value of the equity securities held by the Fund. Equity prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.

 

Eventide Small Cap ETF | Ethical Investment Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Ethical Investment Risk. The Fund’s ethical values screening criteria could cause it to underperform similar funds that do not have such screening criteria. This could be due to ethically acceptable companies falling out of favor with investors or failing to perform as well as companies that do not meet the Fund’s ethical screening guidelines.

Eventide Small Cap ETF | ETF Structure Risks [Member]  
Prospectus [Line Items]  
Risk [Text Block]

ETF Structure Risks. The Fund, and any ETFs the Fund may invest in, are structured as ETFs and as a result are subject to special risks, including:

 

Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” You may incur brokerage costs purchasing enough Shares to constitute a Creation Unit. Fund shares are typically bought and sold in the secondary market and investors typically pay brokerage commissions or other charges on these transactions.

 

Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for a Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares and will include a “bid/ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s NAV, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid and ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s domestic trading day, which could lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.
Eventide Small Cap ETF | Not Individually Redeemable [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” You may incur brokerage costs purchasing enough Shares to constitute a Creation Unit. Fund shares are typically bought and sold in the secondary market and investors typically pay brokerage commissions or other charges on these transactions.

 

Eventide Small Cap ETF | Trading Issues [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for a Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Eventide Small Cap ETF | Market Price Variance Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares and will include a “bid/ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s NAV, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid and ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s domestic trading day, which could lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.
Eventide Small Cap ETF | Industrials Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Industrials Sector Risk. The value of securities issued by companies in the industrials sector may be adversely affected by supply and demand related to their specific products or services and industrials sector products in general. The products of manufacturing companies may face obsolescence due to rapid technological developments and frequent new product introduction. Government regulations, world events, economic conditions and exchange rates may adversely affect the performance of companies in the industrials sector. Companies in the industrials sector may be adversely affected by liability for environmental damage and product liability claims. Companies in the industrials sector, particularly aerospace and defense companies, may also be adversely affected by government spending policies because companies involved in this sector rely to a significant extent on government demand for their products and services.

 

Eventide Small Cap ETF | Industry Concentration Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Industry Concentration Risk. The Fund may concentrate 25% to 35% of its total assets in a particular industry or group of industries to the extent that such industry or group of industries represents 20% or more of the Fund’s Strategy Benchmark. A fund that concentrates its investments in an industry or group of industries is more vulnerable to adverse market, economic, regulatory, political or other developments affecting such industry or group of industries than a fund that invests its assets more broadly.

 

Eventide Small Cap ETF | Investment Style Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Investment Style Risk. The type of securities in which the Fund focuses may underperform other assets or the overall market.

 

Eventide Small Cap ETF | Issuer Specific Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Issuer Specific Risk. The performance of the Fund depends on the performance of the issuers of the individual securities in which the Fund invests. Poor performance by any issuer may cause the value of its securities, and the value of the Fund’s Shares, to decline. The value of a specific security can be more volatile than the market as a whole and can perform differently from the value of the market as a whole. The value of securities of smaller issuers can be more volatile than those of larger issuers. The value of certain types of securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments. Market prices of securities in broad market segments may be adversely affected by a prominent issuer having experienced losses, lack of earnings, failure to meet the market’s expectations with respect to new products or services, or even by factors wholly unrelated to the value or condition of the issuer, such as changes in interest rates.

 

Eventide Small Cap ETF | Limited History of Operations Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Limited History of Operations Risk. The Fund has a limited history of operations for investors to evaluate.

 

Eventide Small Cap ETF | Management Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Management Risk. The Adviser’s reliance on its sector allocation and risk management strategies and related judgments about the value and potential appreciation of securities in which the Fund invests may prove to be incorrect. The Adviser may not successfully implement the Fund’s investment strategies and, as a result, the Fund may not meet its investment objective and/or underperform other investment vehicles with similar investment objectives and strategies.

Eventide Small Cap ETF | Market Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Market Risk. The value of securities in the Fund’s portfolio will fluctuate and, as a result, the Fund’s NAV or market price per share may decline suddenly or over a sustained period of time. Factors such as domestic and foreign economic growth rates and market conditions, interest rate levels, trading and tariff events and political events may adversely affect the securities markets.

 

Eventide Small Cap ETF | REIT Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

REIT Risk. The Fund’s investments in REITs are subject to the same risks as direct investments in real estate, including sensitivity to general economic downturns and the volatility of local real estate markets. REITs may have limited financial resources and their securities may trade infrequently and in limited volume, and thus they may be more volatile than other securities. The liquidity of REITs may change dramatically over time.

 

Eventide Small Cap ETF | Technology Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Technology Sector Risk. Technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Technology companies may have limited product lines, markets, financial resources or personnel. The products of technology companies may face obsolescence or adoption challenges due to rapid technological developments and frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the technology sector can be heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Investments in this sector can be highly volatile. Their values may be adversely affected by such factors as, for example, rapid technological change, changes in management personnel, changes in the competitive environment, and changes in investor sentiment.

Eventide Small Cap ETF | Financial Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Financial Sector Risk. Performance of companies in the financial sector may be adversely impacted by many factors, including, among others, government regulations, economic conditions, credit rating downgrades, changes in interest rates, and decreased liquidity in credit markets. The impact of more stringent capital requirements, recent or future regulation of any individual financial company, or recent or future regulation of the financial sector as a whole cannot be predicted.

 

Eventide Small Cap ETF | Real Estate Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Real Estate Risk. The Fund is subject to the risks of the real estate market as a whole, such as taxation, regulations and economic and political factors that negatively impact the real estate market and the direct ownership of real estate. These may include decreases in real estate values, overbuilding, rising operating costs, interest rates and property taxes. In addition, some real estate related investments are not fully diversified and are subject to the risks associated with financing a limited number of projects.

 

Eventide Small Cap ETF | Small Capitalization Company Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Small Capitalization Company Risk. To the extent the Fund invests in the stocks of smaller-sized companies, the Fund may be subject to additional risks. The earnings and prospects of these companies are more volatile than larger companies. Smaller-sized companies may experience higher failure rates than do larger companies. The trading volume of securities of smaller-sized companies is normally less than that of larger companies and, therefore, may disproportionately affect their market price, tending to make them fall more in response to selling pressure than is the case with larger companies. Smaller-sized companies may have limited markets, product lines or financial resources and may lack management experience.

 

Eventide Small Cap ETF | Healthcare Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Healthcare Sector Risk. The healthcare sector may be affected by government regulations and government healthcare programs, increases or decreases in the cost of medical products and services and product liability claims, among other factors. Many healthcare companies are heavily dependent on patent protection, and the expiration of a company’s patent may adversely affect that company’s profitability. Healthcare companies are subject to competitive forces that may result in price discounting and may be thinly capitalized and susceptible to product obsolescence.

 

Eventide US Market ETF  
Prospectus [Line Items]  
Risk [Text Block]

As with any ETF, there is no guarantee that the Fund will achieve its objective. Investment markets are unpredictable and there will be certain market conditions where the Fund will not meet its investment objective and will lose money. The Fund’s net asset value (“NAV”), market price and returns will vary, and you could lose money on your investment in the Fund and those losses could be significant. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

 

The following identifies the principal risks of investing in the Fund. These risks could adversely affect the NAV, market price, total return and the value of the Fund and your investment.

 

ADRs Risk. ADRs, which are typically issued by a bank, are certificates that evidence ownership of shares of a foreign company and are alternatives to purchasing foreign securities directly in their national markets and currencies. ADRs are subject to the same risks as direct investment in foreign companies and involve risks that are not found in investments in U.S. companies. Although an ADR is priced in the U.S. dollar, movements in the exchange rate of the local currency versus the U.S. dollar are automatically reflected in the price of the ADR in U.S. dollars. Therefore, even if the price of the foreign security does not change on its market, if the exchange rate of the local currency relative to the U.S. dollar declines, the ADR price would decline by a similar measure.

 

Authorized Participant Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants. An “Authorized Participant” is a participant in the Continuous Net Settlement System of the National Securities Clearing Corporation or the Depository Trust Company (“DTC”) and that has executed a Participant Agreement with the Fund’s distributor (“Distributor”). To the extent these Authorized Participants exit the business or are unable to process creation and/or redemption orders and no other Authorized Participant is able to step forward to process creation and/or redemption orders, in either of these cases, Shares of the Fund may trade like closed-end fund shares at a discount to the Fund’s NAV per share and possibly face delisting by NYSE Arca, Inc. (the “Exchange”). These risks could cause intra-day bid/ask spreads for the Fund’s shares to widen.

 

Cash and Cash Equivalents Risk. At times, the Fund may have significant investments in cash or cash equivalents. When a substantial portion of a portfolio is held in cash or cash equivalents, there is the risk that the value of the cash account, including interest, will not keep pace with inflation, thus reducing purchasing power over time. Additionally, in rising markets, holding cash or cash equivalents may adversely affect the Fund’s performance and the Fund may not achieve its investment objective.

 

Equity Securities Risk. The NAV and market price of the Fund will fluctuate based on changes in the value of the equity securities held by the Fund. Equity prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.

 

Ethical Investment Risk. The Fund’s ethical values screening criteria could cause it to underperform similar funds that do not have such screening criteria. This could be due to ethically acceptable companies falling out of favor with investors or failing to perform as well as companies that do not meet the Fund’s ethical screening guidelines.

 

To supplement its efforts in ethical investing, the Adviser may engage with portfolio companies to encourage consideration of corporate strategies aligned with the Adviser’s values, including pricing and/or business practices that may be beneficial within particular industries. The Adviser believes these activities will help promote ethical and effective corporate governance and long-term strategy for companies, and potentially create a positive effect on the particular businesses and/or industries, their consumers, and the Fund. There is no guarantee that the Adviser’s corporate engagements and related activities will achieve their intended results. There is a risk that the Adviser’s activities in this regard could limit the Fund’s investment universe and reduce the amount of profits that could be realized by affected companies, limiting the Fund’s investment returns. Furthermore, the U.S. government or any agency thereof, may enact rules or legislation that, directly or indirectly, materially impacts the Adviser’s activities in this regard, or materially affects the value of companies or opportunities for investment within particular industries.

 

ETF Structure Risks. The Fund, and any ETFs the Fund may invest in, are structured as ETFs and as a result are subject to special risks, including:

 

Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” You may incur brokerage costs purchasing enough Shares to constitute a Creation Unit. Fund shares are typically bought and sold in the secondary market and investors typically pay brokerage commissions or other charges on these transactions.

 

Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for a Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares and will include a “bid/ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s NAV, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid and ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s domestic trading day, which could lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

Foreign Investment Risk. Investments in foreign securities tend to be more volatile and less liquid than investments in U.S. securities because, among other things, they involve risks relating to political, social and economic developments abroad, including economic sanctions, as well as risks resulting from differences between the regulations and reporting standards and practices to which U.S. and foreign issuers are subject. Investing in foreign securities includes trading related risks (e.g., government supervision and regulation of foreign securities and currency markets, trading systems and brokers may be less than in the U.S., and foreign securities may be subject to foreign governmental restrictions such as exchange controls). The risks of investing in foreign securities are typically increased by investing in emerging market countries. Securities denominated in foreign currencies may be adversely affected by changes in currency rates and by substantial currency conversion costs.

 

Industrials Sector Risk. The value of securities issued by companies in the industrials sector may be adversely affected by supply and demand related to their specific products or services and industrials sector products in general. The products of manufacturing companies may face obsolescence due to rapid technological developments and frequent new product introduction. Government regulations, world events, economic conditions and exchange rates may adversely affect the performance of companies in the industrials sector. Companies in the industrials sector may be adversely affected by liability for environmental damage and product liability claims. Companies in the industrials sector, particularly aerospace and defense companies, may also be adversely affected by government spending policies because companies involved in this sector rely to a significant extent on government demand for their products and services.

 

Investment Style Risk. The type of securities in which the Fund focuses may underperform other assets or the overall market.

 

Issuer Specific Risk. The performance of the Fund depends on the performance of the issuers of the individual securities in which the Fund invests. Poor performance by any issuer may cause the value of its securities, and the value of the Fund’s shares, to decline. The value of a specific security can be more volatile than the market as a whole and can perform differently from the value of the market as a whole. The value of securities of smaller issuers can be more volatile than those of larger issuers. The value of certain types of securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments. Market prices of securities in broad market segments may be adversely affected by a prominent issuer having experienced losses, lack of earnings, failure to meet the market’s expectations with respect to new products or services, or even by factors wholly unrelated to the value or condition of the issuer, such as changes in interest rates.

 

Large Capitalization Company Risk. The Fund’s investment in larger companies is subject to the risk that larger companies are sometimes unable to attain the high growth rates of successful, smaller companies, especially during extended periods of economic expansion; and may be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes.

 

Limited History of Operations Risk. The Fund has a limited history of operations for investors to evaluate.

 

Management Risk. The Adviser’s reliance on its sector allocation and risk management strategies and related judgments about the value and potential appreciation of securities in which the Fund invests may prove to be incorrect. The Adviser may not successfully implement the Fund’s investment strategies and, as a result, the Fund may not meet its investment objective and/or underperform other investment vehicles with similar investment objectives and strategies.

 

Market Risk. The value of securities in the Fund’s portfolio will fluctuate and, as a result, the Fund’s NAV or market price per share may decline suddenly or over a sustained period of time. Factors such as domestic and foreign economic growth rates and market conditions, interest rate levels, trading and tariff events and political events may adversely affect the securities markets.

 

Medium (Mid) Capitalization Company Risk. To the extent the Fund invests in the stocks of mid-sized companies, the Fund may be subject to additional risks. The earnings and prospects of these companies are more volatile than larger companies. These companies may experience higher failure rates than larger companies. Mid- sized companies normally have a lower trading volume than larger companies, which may tend to make their market price fall more disproportionately than larger companies in response to selling pressures. Mid-sized companies may also have limited markets, product lines or financial resources and may lack management experience.

 

Real Estate Risk. The Fund is subject to the risks of the real estate market as a whole, such as taxation, regulations and economic and political factors that negatively impact the real estate market and the direct ownership of real estate. These may include decreases in real estate values, overbuilding, rising operating costs, interest rates and property taxes. In addition, some real estate related investments are not fully diversified and are subject to the risks associated with financing a limited number of projects.

 

REIT Risk. The Fund’s investments in REITs are subject to the same risks as direct investments in real estate, including sensitivity to general economic downturns and the volatility of local real estate markets. REITs may have limited financial resources and their securities may trade infrequently and in limited volume, and thus they may be more volatile than other securities. The liquidity of REITs may change dramatically over time.

 

Sector Risk. The Fund may focus its investments in securities of a particular sector. Economic, legislative or regulatory developments may occur that significantly affect the sector. This may cause the Fund’s NAV to fluctuate more than that of a fund that does not focus in a particular sector.

 

Security Risk. The value of the Fund may decrease in response to the activities and financial prospects of an individual security in the Fund’s or an Underlying Fund’s portfolio.

 

Small Capitalization Company Risk. To the extent the Fund invests in the stocks of smaller-sized companies, the Fund may be subject to additional risks. The earnings and prospects of these companies are more volatile than larger companies. Smaller-sized companies may experience higher failure rates than do larger companies. The trading volume of securities of smaller-sized companies is normally less than that of larger companies and, therefore, may disproportionately affect their market price, tending to make them fall more in response to selling pressure than is the case with larger companies. Smaller-sized companies may have limited markets, product lines or financial resources and may lack management experience.

 

Technology Sector Risk. Technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Technology companies may have limited product lines, markets, financial resources or personnel. The products of technology companies may face obsolescence or adoption challenges due to rapid technological developments and frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the technology sector can be heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Investments in this sector can be highly volatile. Their values may be adversely affected by such factors as, for example, rapid technological change, changes in management personnel, changes in the competitive environment, and changes in investor sentiment.

 

For more information, please see the section of the Fund’s Prospectus entitled “Additional Information About the Fund’s Principal Investment Strategies and Related Risks.” 

Eventide US Market ETF | ADRs Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

ADRs Risk. ADRs, which are typically issued by a bank, are certificates that evidence ownership of shares of a foreign company and are alternatives to purchasing foreign securities directly in their national markets and currencies. ADRs are subject to the same risks as direct investment in foreign companies and involve risks that are not found in investments in U.S. companies. Although an ADR is priced in the U.S. dollar, movements in the exchange rate of the local currency versus the U.S. dollar are automatically reflected in the price of the ADR in U.S. dollars. Therefore, even if the price of the foreign security does not change on its market, if the exchange rate of the local currency relative to the U.S. dollar declines, the ADR price would decline by a similar measure.

 

Eventide US Market ETF | Authorized Participant Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Authorized Participant Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants. An “Authorized Participant” is a participant in the Continuous Net Settlement System of the National Securities Clearing Corporation or the Depository Trust Company (“DTC”) and that has executed a Participant Agreement with the Fund’s distributor (“Distributor”). To the extent these Authorized Participants exit the business or are unable to process creation and/or redemption orders and no other Authorized Participant is able to step forward to process creation and/or redemption orders, in either of these cases, Shares of the Fund may trade like closed-end fund shares at a discount to the Fund’s NAV per share and possibly face delisting by NYSE Arca, Inc. (the “Exchange”). These risks could cause intra-day bid/ask spreads for the Fund’s shares to widen.

 

Eventide US Market ETF | Cash and Cash Equivalents Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Cash and Cash Equivalents Risk. At times, the Fund may have significant investments in cash or cash equivalents. When a substantial portion of a portfolio is held in cash or cash equivalents, there is the risk that the value of the cash account, including interest, will not keep pace with inflation, thus reducing purchasing power over time. Additionally, in rising markets, holding cash or cash equivalents may adversely affect the Fund’s performance and the Fund may not achieve its investment objective.

Eventide US Market ETF | Equity Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Equity Securities Risk. The NAV and market price of the Fund will fluctuate based on changes in the value of the equity securities held by the Fund. Equity prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.

 

Eventide US Market ETF | Ethical Investment Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Ethical Investment Risk. The Fund’s ethical values screening criteria could cause it to underperform similar funds that do not have such screening criteria. This could be due to ethically acceptable companies falling out of favor with investors or failing to perform as well as companies that do not meet the Fund’s ethical screening guidelines.

 

To supplement its efforts in ethical investing, the Adviser may engage with portfolio companies to encourage consideration of corporate strategies aligned with the Adviser’s values, including pricing and/or business practices that may be beneficial within particular industries. The Adviser believes these activities will help promote ethical and effective corporate governance and long-term strategy for companies, and potentially create a positive effect on the particular businesses and/or industries, their consumers, and the Fund. There is no guarantee that the Adviser’s corporate engagements and related activities will achieve their intended results. There is a risk that the Adviser’s activities in this regard could limit the Fund’s investment universe and reduce the amount of profits that could be realized by affected companies, limiting the Fund’s investment returns. Furthermore, the U.S. government or any agency thereof, may enact rules or legislation that, directly or indirectly, materially impacts the Adviser’s activities in this regard, or materially affects the value of companies or opportunities for investment within particular industries.

 

Eventide US Market ETF | ETF Structure Risks [Member]  
Prospectus [Line Items]  
Risk [Text Block]

ETF Structure Risks. The Fund, and any ETFs the Fund may invest in, are structured as ETFs and as a result are subject to special risks, including:

 

Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” You may incur brokerage costs purchasing enough Shares to constitute a Creation Unit. Fund shares are typically bought and sold in the secondary market and investors typically pay brokerage commissions or other charges on these transactions.

 

Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for a Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares and will include a “bid/ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s NAV, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid and ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s domestic trading day, which could lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.
Eventide US Market ETF | Not Individually Redeemable [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” You may incur brokerage costs purchasing enough Shares to constitute a Creation Unit. Fund shares are typically bought and sold in the secondary market and investors typically pay brokerage commissions or other charges on these transactions.

 

Eventide US Market ETF | Trading Issues [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for a Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Eventide US Market ETF | Market Price Variance Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares and will include a “bid/ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s NAV, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid and ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s domestic trading day, which could lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.
Eventide US Market ETF | Foreign Investment Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Foreign Investment Risk. Investments in foreign securities tend to be more volatile and less liquid than investments in U.S. securities because, among other things, they involve risks relating to political, social and economic developments abroad, including economic sanctions, as well as risks resulting from differences between the regulations and reporting standards and practices to which U.S. and foreign issuers are subject. Investing in foreign securities includes trading related risks (e.g., government supervision and regulation of foreign securities and currency markets, trading systems and brokers may be less than in the U.S., and foreign securities may be subject to foreign governmental restrictions such as exchange controls). The risks of investing in foreign securities are typically increased by investing in emerging market countries. Securities denominated in foreign currencies may be adversely affected by changes in currency rates and by substantial currency conversion costs.

 

Eventide US Market ETF | Industrials Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Industrials Sector Risk. The value of securities issued by companies in the industrials sector may be adversely affected by supply and demand related to their specific products or services and industrials sector products in general. The products of manufacturing companies may face obsolescence due to rapid technological developments and frequent new product introduction. Government regulations, world events, economic conditions and exchange rates may adversely affect the performance of companies in the industrials sector. Companies in the industrials sector may be adversely affected by liability for environmental damage and product liability claims. Companies in the industrials sector, particularly aerospace and defense companies, may also be adversely affected by government spending policies because companies involved in this sector rely to a significant extent on government demand for their products and services.

 

Eventide US Market ETF | Investment Style Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Investment Style Risk. The type of securities in which the Fund focuses may underperform other assets or the overall market.

 

Eventide US Market ETF | Issuer Specific Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Issuer Specific Risk. The performance of the Fund depends on the performance of the issuers of the individual securities in which the Fund invests. Poor performance by any issuer may cause the value of its securities, and the value of the Fund’s shares, to decline. The value of a specific security can be more volatile than the market as a whole and can perform differently from the value of the market as a whole. The value of securities of smaller issuers can be more volatile than those of larger issuers. The value of certain types of securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments. Market prices of securities in broad market segments may be adversely affected by a prominent issuer having experienced losses, lack of earnings, failure to meet the market’s expectations with respect to new products or services, or even by factors wholly unrelated to the value or condition of the issuer, such as changes in interest rates.

 

Eventide US Market ETF | Large Capitalization Company Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Large Capitalization Company Risk. The Fund’s investment in larger companies is subject to the risk that larger companies are sometimes unable to attain the high growth rates of successful, smaller companies, especially during extended periods of economic expansion; and may be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes.

Eventide US Market ETF | Limited History of Operations Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Limited History of Operations Risk. The Fund has a limited history of operations for investors to evaluate.

 

Eventide US Market ETF | Management Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Management Risk. The Adviser’s reliance on its sector allocation and risk management strategies and related judgments about the value and potential appreciation of securities in which the Fund invests may prove to be incorrect. The Adviser may not successfully implement the Fund’s investment strategies and, as a result, the Fund may not meet its investment objective and/or underperform other investment vehicles with similar investment objectives and strategies.

 

Eventide US Market ETF | Market Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Market Risk. The value of securities in the Fund’s portfolio will fluctuate and, as a result, the Fund’s NAV or market price per share may decline suddenly or over a sustained period of time. Factors such as domestic and foreign economic growth rates and market conditions, interest rate levels, trading and tariff events and political events may adversely affect the securities markets.

 

Eventide US Market ETF | Medium (Mid) Capitalization Company Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Medium (Mid) Capitalization Company Risk. To the extent the Fund invests in the stocks of mid-sized companies, the Fund may be subject to additional risks. The earnings and prospects of these companies are more volatile than larger companies. These companies may experience higher failure rates than larger companies. Mid- sized companies normally have a lower trading volume than larger companies, which may tend to make their market price fall more disproportionately than larger companies in response to selling pressures. Mid-sized companies may also have limited markets, product lines or financial resources and may lack management experience.

 

Eventide US Market ETF | REIT Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

REIT Risk. The Fund’s investments in REITs are subject to the same risks as direct investments in real estate, including sensitivity to general economic downturns and the volatility of local real estate markets. REITs may have limited financial resources and their securities may trade infrequently and in limited volume, and thus they may be more volatile than other securities. The liquidity of REITs may change dramatically over time.

 

Eventide US Market ETF | Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Sector Risk. The Fund may focus its investments in securities of a particular sector. Economic, legislative or regulatory developments may occur that significantly affect the sector. This may cause the Fund’s NAV to fluctuate more than that of a fund that does not focus in a particular sector.

 

Eventide US Market ETF | Security Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Security Risk. The value of the Fund may decrease in response to the activities and financial prospects of an individual security in the Fund’s or an Underlying Fund’s portfolio.

 

Eventide US Market ETF | Technology Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Technology Sector Risk. Technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Technology companies may have limited product lines, markets, financial resources or personnel. The products of technology companies may face obsolescence or adoption challenges due to rapid technological developments and frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the technology sector can be heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Investments in this sector can be highly volatile. Their values may be adversely affected by such factors as, for example, rapid technological change, changes in management personnel, changes in the competitive environment, and changes in investor sentiment.

Eventide US Market ETF | Real Estate Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Real Estate Risk. The Fund is subject to the risks of the real estate market as a whole, such as taxation, regulations and economic and political factors that negatively impact the real estate market and the direct ownership of real estate. These may include decreases in real estate values, overbuilding, rising operating costs, interest rates and property taxes. In addition, some real estate related investments are not fully diversified and are subject to the risks associated with financing a limited number of projects.

 

Eventide US Market ETF | Small Capitalization Company Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Small Capitalization Company Risk. To the extent the Fund invests in the stocks of smaller-sized companies, the Fund may be subject to additional risks. The earnings and prospects of these companies are more volatile than larger companies. Smaller-sized companies may experience higher failure rates than do larger companies. The trading volume of securities of smaller-sized companies is normally less than that of larger companies and, therefore, may disproportionately affect their market price, tending to make them fall more in response to selling pressure than is the case with larger companies. Smaller-sized companies may have limited markets, product lines or financial resources and may lack management experience.

Strategy Shares Gold Enhanced Yield ETF  
Prospectus [Line Items]  
Risk [Text Block]

As with any ETF, there is no guarantee that the Fund will achieve its investment objective. Investment markets are unpredictable and there will be certain market conditions where the Fund will not meet its investment objective and will lose money. The Fund’s net asset value, market price and returns will vary and you could lose money on your investment in the Fund, and those losses could be significant. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency, nor is it a complete investment program.

The following summarizes the principal risks of investing in the Fund. These risks could adversely affect the net asset value, market price, total return and value of the Fund and your investment.

Active Trading Risk. The Fund may trade securities actively, which could increase its transaction costs (thereby lowering its performance) and could increase the amount of taxes you owe by generating short-term gains, which may be taxed at a higher rate. Under certain market conditions, the Fund’s turnover may be very high and considerably higher than that of other funds.

 

Authorized Participant Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants. An “Authorized Participant” is a participant in the Continuous Net Settlement System of the National Securities Clearing Corporation or the Depository Trust Company (“DTC”), and that has executed a Participant Agreement with the Fund’s distributor (“Distributor”). To the extent these Authorized Participants exit the business or are unable to process creation and/or redemption orders, and no other Authorized Participant is able to step forward to process creation and/or redemption orders, in either of these cases, shares of the Fund may trade like closed-end fund shares at a discount to NAV, and possibly face delisting by the CBOE BZX Exchange (the “Exchange”). These risks could cause intra-day bid/ask spreads for the Fund’s shares to widen.

 

Cash and Cash Equivalents Risk. At times, the Fund may have significant investments in cash or cash equivalents. When a substantial portion of a portfolio is held in cash or cash equivalents, there is the risk that the value of the cash account, including interest, will not keep pace with inflation, thus reducing purchasing power over time. Additionally, in rising markets, holding cash or cash equivalents may adversely affect the Fund’s performance, and the Fund may not achieve its investment objective.

 

Cash Transactions Risk. ETFs generally are able to make in-kind redemptions and avoid being taxed on gains on the distributed portfolio securities at the Fund level. Because the Fund may effect redemptions partly or entirely in cash, rather than in-kind, it may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds. If the Fund recognizes gain on these sales, this generally will cause the Fund to recognize gain it might not otherwise have recognized, or to recognize such gain sooner than would otherwise be required if it were to distribute portfolio securities in-kind. The Fund generally intends to distribute these gains to shareholders to avoid being taxed on this gain at the Fund level and otherwise comply with the special tax rules that apply to it. This strategy may cause shareholders to be subject to tax on gains they would not otherwise be subject to, or at an earlier date than if they had made an investment in a different ETF.

 

Changing Fixed Income Market Conditions Risk. The future direction of interest rates is uncertain. If interest rates rise, there is risk that rates across the financial system also may rise. Changes in government intervention may have adverse effects on the Fund’s investments, volatility, and illiquidity in debt markets. Interest rate increases could cause the value of the Fund to decrease. Federal Reserve policy changes may expose fixed-income and related markets to heightened volatility and may reduce liquidity for certain Fund investments, which could cause the value of a Fund’s investments and share price to decline. If a Fund invests in derivatives tied to fixed-income markets, the Fund may be more substantially exposed to these risks than a fund that does not invest in derivatives. To the extent a Fund experiences high redemptions because of these policy changes, the Fund may experience increased portfolio turnover, which will increase the costs the Fund incurs and may lower its performance. Furthermore, if rising interest rates cause a Fund to lose enough value, the Fund could also face increased redemptions, which could force the Fund to liquidate investments at disadvantageous times or prices, thereby adversely affecting the Fund. In addition, decreases in fixed income dealer market-making capacity may persist in the future, potentially leading to decreased liquidity and increased volatility in the fixed income markets.

 

Commodity Risk. Exposure to the commodities markets may subject a fund to greater volatility than investments in traditional securities. Commodity prices may be influenced by unfavorable weather, animal and plant disease, geologic and environmental factors, as well as changes in government regulation, such as tariffs, embargoes or burdensome production rules and restrictions. The Commodity Basket Component will invest in energy and industrial metals/precious metals commodities. Please see “Energy Sector Risk”, “Industrial Metals Sector Risk” and “Precious Metals Sector Risk” below.

 

Commodity Tax Risk. The tax treatment of commodity-linked derivative instruments may be adversely affected by changes in legislation, regulations or other legally binding authority. If, as a result of any such adverse action, the income of the Fund from certain commodity-linked derivatives was treated as non-qualifying income, the Fund might fail to qualify as a regulated investment company and be subject to federal income tax at the Fund level, and all distributions from earnings and profits, including any distribution of net tax-exempt income and net long-term capital gains, would be taxable to Fund shareholders as ordinary income. Should the Internal Revenue Service issue further guidance, or Congress enact legislation, that adversely affects the tax treatment of the Subsidiary (which guidance might be applied to the Fund retroactively), it could, among other consequences, limit the Fund’s ability to pursue its investment strategy.

 

Counterparty Risk. The Fund may engage in transactions in securities and financial instruments that involve counterparties. Counterparty risk is the risk that a counterparty (the other party to a transaction or an agreement, or the party with whom the Fund executes transactions) to a transaction with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.

 

Credit Risk. Credit risk is the risk that an issuer of a security will fail to pay principal and interest in a timely manner, reducing the Fund’s total return. There is a risk that issuers will not make payments on fixed income securities held by the Fund, resulting in losses to the Fund. In addition, the credit quality of fixed income securities held by the Fund may be lowered if an issuer’s financial condition changes. The issuer of a fixed income security may also default on its obligations.

 

Derivatives Risk. The performance of a derivative instrument depends largely on the performance of an underlying instrument, such as a currency, security, rate or index. In addition, the use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments. These risks include (i) the risk that the counterparty to a derivative transaction may be unwilling or unable to fulfill its contractual obligations; (ii) the risk of mispricing or improper valuation; and (iii) the risk that changes in the value of the derivative may not correlate perfectly with the underlying reference asset. Derivatives can also create leverage risk because they do not require payment up front equal to the economic exposure created by holding a position in the derivative. As a result, an adverse change in the value of the underlying asset could result in the Fund sustaining a loss that is substantially greater than the amount invested in the derivative or the anticipated value of the underlying asset, which may make the Fund’s returns more volatile and increase the risk of loss. Derivative instruments may be less liquid than more traditional investments, and the Fund may be unable to sell or close out its derivative positions at a desirable time or price. This risk may be more acute under adverse market conditions, during which the Fund may be most in need of liquidating its derivative positions. Additionally, the Fund’s obligation to make payments of margin, collateral, or settlement payments to counterparties may heighten liquidity demands on the Fund’s portfolio. Derivatives may be less tax efficient and subject to changing government regulation that could impact the Fund’s ability to use certain derivatives or their cost. When a derivative is used for hedging, the change in value of the derivative may also not correlate specifically with the risk of the underlying asset being hedged. Derivatives are subject to the risk of adverse market movements and the risk that markets could experience a change in volatility that adversely impacts Fund returns and the Fund’s obligations and exposures. Derivative prices are highly volatile and may fluctuate substantially during a short period of time. Such prices are influenced by numerous factors that affect the markets, including, but not limited to, changing supply and demand relationships; government programs and policies; national and international political and economic events; geopolitical conflicts; changes in interest rates; and inflation and deflation. Derivatives are also subject to operational risk, including potential documentation issues, settlement issues, systems failures, inadequate controls and human error, as well as legal risks arising from insufficient documentation, insufficient capacity or authority of counterparty, or the legality or enforceability of a contract. Derivatives strategies may not be successful, and their successful use will depend on the portfolio managers’ ability to accurately forecast movements in the market relating to the underlying asset.

 

Futures Risk. Investments in futures contracts involve leverage, which means a small percentage of assets invested in futures contracts can have a disproportionately large impact on the Fund. This risk could cause the Fund to lose more than the principal amount invested. In addition, futures contracts may become mispriced or improperly valued relative to the Advisor’s expectations and may not produce the desired investment results. Additionally, changes in the value of futures contracts may not track or correlate perfectly with the underlying reference asset because of temporary, or even long-term, supply and demand imbalances, and because futures contracts do not pay dividends.

 

Unlike equities, which typically entitle the holder to a continuing stake in a corporation, futures contracts normally specify a certain date for settlement in cash based on the reference asset. As the futures contracts approach expiration, they may be replaced by similar contracts that have a later expiration. This process is referred to as “rolling.” The actual realization of a potential roll cost will be dependent upon the difference in price of the near and distant contract. Because the margin requirement for futures contracts is less than the value of the assets underlying the futures contract, futures trading involves a degree of leverage. As a result, a relatively small price movement in a futures contract may result in immediate and substantial loss to the Fund, which could significantly adversely affect the Fund’s performance.

 

Leverage and Volatility Risk. Derivative contracts ordinarily have leverage inherent in their terms, meaning that the Fund can obtain significant investment exposure in return for meeting a relatively small margin or other investment requirement. The low margin deposits normally required in trading derivatives permit a high degree of leverage. Accordingly, a relatively small price movement may result in an immediate and substantial loss to the Fund, potentially in excess of the amounts invested or borrowed. The use of leverage may also cause the Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations or to meet collateral segregation requirements. The use of leveraged derivatives can magnify the Fund’s potential for gain or loss and, therefore, amplify the effects of market volatility on the Fund’s share price.

 

Liquidity Risk: It is possible that particular derivative investments might be difficult to purchase or sell, possibly preventing the Fund from executing positions at an advantageous time or price, or possibly requiring the Fund to dispose of other investments at unfavorable times or prices in order to satisfy its obligations.

 

Options Market Risk. Markets for options and options on futures contracts may not always operate on a fair and orderly basis. At times, prices for options and options on futures contracts may not represent fair market value and prices may be subject to manipulation, which may be extreme under some circumstances. The dysfunction and manipulation of volatility of options markets may make it difficult for a fund to effectively implement its investment strategy and achieve its investment objectives, and could potentially lead to significant losses.

 

Options Risk. There are risks associated with the Fund’s exposure to options. As a seller (writer) of a put option, the Fund will lose money if the value of the underlying reference instrument falls below (written put option) the respective option’s strike price. The Fund’s losses are potentially large in a written put transaction.

 

Over-the-Counter (“OTC”) Trading Risk. Certain of the derivatives in which the Fund may invest may be traded (and privately negotiated) in the OTC market. While the OTC derivatives market is the primary trading venue for many derivatives, it is largely unregulated. As a result, and similar to other privately negotiated contracts, the Fund is subject to counterparty credit risk with respect to such derivative contracts.

 

Total Return Swap Risk Total return swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to replace. Total return over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The Fund’s use of swaps involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments, and exposes the Fund to the risks associated with derivative instruments described above. In a standard “swap” transaction, two parties agree to exchange the returns, differentials in rates of return or some other amount earned or realized on the “notional amount” of predetermined investments or instruments, which may be adjusted for an interest factor. Certain derivatives risks are heightened with respect to over-the-counter (“OTC”) derivative instruments, like certain swap agreements, and may be greater during volatile market conditions. Such risks include the risk of leverage (i.e., the risk that an adverse change in the value of the underlying asset could result in the Fund sustaining a loss that is substantially greater than the amount invested in the derivative or the anticipated value of the underlying asset), counterparty risk (i.e., the risk of a counterparty’s unwillingness or inability to perform its obligations, including as a result of bankruptcy), credit risk (i.e., the risk that the issuer of the underlying asset may default on its obligations), and pricing risk (i.e., swaps may be difficult to value).

 

Distribution Policy Risk. Shareholders receiving periodic payments from the Fund may be under the impression that they are receiving net profits. However, all or a portion of a distribution may consist of a return of capital (i.e., from your original investment). Shareholders should not assume that the source of a distribution from the Fund is net profit. Any capital returned to investors through distributions will be distributed after payment of Fund fees and expenses. Shareholders should note that return of capital will reduce the tax basis of their shares and potentially increase the taxable gain, if any, upon disposition of their shares. For more information, please refer to the section of the Fund’s prospectus entitled “Tax Consequences”.

 

Duration Risk. Longer-term fixed-income securities may be more sensitive to interest rate changes, particularly in periods of rising interest rates. Effective duration estimates price changes for relatively small changes in rates. If rates rise significantly, effective duration may tend to understate the drop in a security’s price. If rates drop significantly, effective duration may tend to overstate the rise in a security’s price.

 

Energy Sector Risk. The Fund’s exposure to the energy sector will result in the performance of the Fund being relatively corelated to, and affected by, developments in the energy sector, such as the possibility that government regulation will negatively impact companies in this sector. Energy entities are subject to the risks specific, but not limited, to the following:

 

Fluctuations in commodity prices;

 

Reduced volumes of natural gas or other energy commodities available for transporting, processing, storing or distributing;

 

New construction risk and acquisition risk, which can limit potential growth;

 

A sustained reduced demand for crude oil, natural gas and refined petroleum products resulting from a recession or an increase in market price or higher taxes;

 

Depletion of the natural gas reserves or other commodities, if not replaced;

 

Changes in the regulatory environment;

 

Extreme weather;

 

Rising interest rates, which could result in a higher cost of capital and drive investors into other investment opportunities; and

 

Threats of attack by terrorists.

 

ETF Risk. Like a mutual fund, the value of an ETF can fluctuate based on the prices of the securities owned by the ETF. Because the Fund may invest its assets in ETFs that have their own fees and expenses in addition to those charged directly by the Fund, the Fund may bear higher expenses than a fund that invests directly in individual securities. By investing in other ETFs, the Fund will be subject to the risks associated with the underlying investments of such ETFs. ETFs are also subject to the risks described under “ETF Structures Risk.”

 

ETF Structure Risks. The Fund is structured as an ETF and, as a result, is subject to special risks, including:

 

Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” Fund shares are typically bought and sold in the secondary market, and investors typically pay brokerage commissions or other charges on these transactions.

 

Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for the Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares, and will include a “bid-ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and the intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s net asset value, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid/ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s domestic trading day, which can lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

Fixed Income Securities Risk. The value of the Fund’s investments in fixed income securities will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned by the Fund. In general, the market price of fixed income securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities. Other risk factors include credit risk (the risk that the debtor may default), extension risk (the risk that an issuer may exercise its right to repay principal on a fixed rate obligation held by the Fund later than expected), and prepayment risk (the risk that the debtor may pay its obligation early, thereby reducing the amount of interest payments). These risks could affect the value of a particular investment by the Fund, possibly causing the Fund’s share price and total return to be reduced and fluctuate more than other types of investments.

 

Foreign Investment Risk. Investments in foreign securities tend to be more volatile and less liquid than investments in U.S. securities because, among other things, they involve risks relating to political, social, and economic developments abroad, including economic sanctions, as well as risks resulting from differences between the regulations and reporting standards and practices to which U.S. and foreign issuers are subject. Investing in foreign securities includes trading related risks (e.g., government supervision and regulation of foreign securities and currency markets, trading systems and brokers may be less than in the U.S., and foreign securities may be subject to foreign governmental restrictions, such as exchange controls).

 

Gold Risk. The price of gold may be affected by several factors, including the global gold supply and demand and investors’ expectations with respect to the rate of inflation. Developments affecting the value of gold may have a significant impact on the Fund. Gold markets have been, and will likely continue to be, subject to sharp price fluctuations, which may lead to significant price fluctuations in the shares of the Fund. In addition, it is possible that a shareholder may not realize his or her investment objective because the gold markets have historically experienced extended periods of flat or declining prices, in addition to sharp fluctuations. There is no assurance that gold will maintain its long-term value in terms of purchasing power in the future.

 

Income Risk. The Fund’s distributions to shareholders may decline when prevailing interest rates fall, when the Fund experiences deterioration of the underlying debt securities it holds, or when the Fund realizes a loss upon the sale of a debt security.

 

Industrial Metals Sector Risk. Risks of investing in the industrial metals sector commodities include, in addition to other risks, substantial price fluctuations over short periods of time, imposition of import controls, increased competition, government regulation, disruptions in mining, storing, and refining of metals, and changes in industrial, governmental and commercial demand for certain metals.

 

Interest Rate Risk. Interest rate risk is the risk that bond prices overall, including the prices of securities held by the Fund, will decline over short or long periods of time due to rising interest rates. Bonds with longer maturities tend to be more sensitive to interest rates than bonds with shorter maturities. The maturity and effective duration of the Fund’s investment portfolio may vary materially, from time to time, and there is no assurance that the Fund will achieve or maintain any particular target maturity or effective duration of its investment portfolio.

 

Investment Style Risk. The type of securities in which the Fund focuses may underperform other assets, asset classes, and/or the overall market.

 

Issuer Specific Risk. The performance of the Fund depends on the performance of the issuers of the individual securities in which the Fund invests. Poor performance by any issuer may cause the value of its securities, and the value of the Fund’s shares, to decline. The value of a specific security can be more volatile than the market as a whole, and can perform differently from the value of the market as a whole.

 

Management Risk. The Advisor may not successfully implement the Fund’s investment strategies and, as a result, the Fund may not meet its investment objective.

 

Market Risk. The value of securities in the Fund’s portfolio will fluctuate and, as a result, the Fund’s NAV or market price per share may decline suddenly or over a sustained period of time. Overall market risks may also affect the value of the Fund. Factors such as domestic and foreign economic growth rates and market conditions, interest rate levels, trading and tariff events, geopolitical conflicts, interest rate levels, and political events may adversely affect the securities markets.

 

Non-Diversification Risk. To the extent that the Fund holds securities of a smaller number of issuers, or invests a larger percentage of its assets in a single issuer, than a diversified portfolio, the value of the Fund, as compared to the value of a diversified portfolio, will generally be more volatile and more sensitive to the performance of any one of those issuers, and to economic, political, market or regulatory events affecting any one of those issuers.

 

Precious Metals Sector Risk. Prices of precious metals and of precious metal-related securities have historically been volatile. Economic, financial and political factors can cause periods of volatility. Because precious metals and other commodities do not generate investment income, the return on such investments will be derived solely from the appreciation or depreciation of such investments. Changes in the production and sale of precious metals by governments or central banks, or other large holders, can be unpredictable and may also have a significant impact on the prices of precious metals.

 

Regulatory Risk. Changes in the laws or regulations of the United States, Cayman Islands, or other countries, including any changes to applicable tax laws and regulations, could impair the ability of the Fund to achieve its investment objective, and could increase the operating expenses of the Fund. The Fund and the Subsidiary are “commodity pools” under the U.S. Commodity Exchange Act (the “CEA”), and the Advisor is a “commodity pool operator” registered with and regulated by the CFTC.

 

Rule 144A Securities Risk. The Fund may invest in securities that are normally purchased or resold pursuant to Rule 144A under the Securities Act of 1933 (the “Securities Act”). Rule 144A securities are restricted securities that are not publicly traded and may be subject to legal restrictions on resale. Rule 144A securities are generally not traded on established markets, and the market for such securities is typically less active than the market for publicly traded securities. As a result, Rule 144A securities may be illiquid, difficult to value and subject to wide fluctuations in value. Delay or difficulty in selling such securities may result in a loss to the Fund.

 

U.S. Government Obligations Risk. U.S. Treasury obligations are backed by the “full faith and credit” of the U.S. government and generally have negligible credit risk. However, due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. Securities issued or guaranteed by federal agencies or authorities and U.S. government-sponsored instrumentalities or enterprises may not be backed by the full faith and credit of the U.S. government, which could affect the Fund’s ability to recover should they default.

 

Volatility Risk. The Fund may have investments that appreciate or decrease significantly in value over short periods of time. This may cause the Fund’s net asset value and market price per share to experience significant increases or declines in value over short periods of time; however, all investments, whether long- or short-term, are subject to risk of loss.

 

Wholly Owned Subsidiary Risk. By investing in the Subsidiary, the Fund is indirectly exposed to the commodities risks associated with the Subsidiary’s investments in commodity-related instruments. There can be no assurance that the Subsidiary’s investments will contribute to the Fund’s returns. The Subsidiary is not registered under the 1940 Act and is not subject to all the investor protections of the 1940 Act. Changes in the laws of the United States and/or the Cayman Islands could result in the inability of the Fund and/or the Subsidiary to operate as described in this Prospectus, and could adversely affect the Fund, such as by reducing the Fund’s investment returns.

 

For more information, please see the section of the Fund’s Prospectus entitled “Additional Information About the Funds’ Principal Investment Strategies and Related Risks.”

Strategy Shares Gold Enhanced Yield ETF | Authorized Participant Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Authorized Participant Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants. An “Authorized Participant” is a participant in the Continuous Net Settlement System of the National Securities Clearing Corporation or the Depository Trust Company (“DTC”), and that has executed a Participant Agreement with the Fund’s distributor (“Distributor”). To the extent these Authorized Participants exit the business or are unable to process creation and/or redemption orders, and no other Authorized Participant is able to step forward to process creation and/or redemption orders, in either of these cases, shares of the Fund may trade like closed-end fund shares at a discount to NAV, and possibly face delisting by the CBOE BZX Exchange (the “Exchange”). These risks could cause intra-day bid/ask spreads for the Fund’s shares to widen.

 

Strategy Shares Gold Enhanced Yield ETF | Cash and Cash Equivalents Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Cash and Cash Equivalents Risk. At times, the Fund may have significant investments in cash or cash equivalents. When a substantial portion of a portfolio is held in cash or cash equivalents, there is the risk that the value of the cash account, including interest, will not keep pace with inflation, thus reducing purchasing power over time. Additionally, in rising markets, holding cash or cash equivalents may adversely affect the Fund’s performance, and the Fund may not achieve its investment objective.

 

Strategy Shares Gold Enhanced Yield ETF | Energy Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Energy Sector Risk. The Fund’s exposure to the energy sector will result in the performance of the Fund being relatively corelated to, and affected by, developments in the energy sector, such as the possibility that government regulation will negatively impact companies in this sector. Energy entities are subject to the risks specific, but not limited, to the following:

 

Fluctuations in commodity prices;

 

Reduced volumes of natural gas or other energy commodities available for transporting, processing, storing or distributing;

 

New construction risk and acquisition risk, which can limit potential growth;

 

A sustained reduced demand for crude oil, natural gas and refined petroleum products resulting from a recession or an increase in market price or higher taxes;

 

Depletion of the natural gas reserves or other commodities, if not replaced;

 

Changes in the regulatory environment;

 

Extreme weather;

 

Rising interest rates, which could result in a higher cost of capital and drive investors into other investment opportunities; and

 

Threats of attack by terrorists.
Strategy Shares Gold Enhanced Yield ETF | ETF Structure Risks [Member]  
Prospectus [Line Items]  
Risk [Text Block]

ETF Structure Risks. The Fund is structured as an ETF and, as a result, is subject to special risks, including:

 

Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” Fund shares are typically bought and sold in the secondary market, and investors typically pay brokerage commissions or other charges on these transactions.

 

Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for the Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares, and will include a “bid-ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and the intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s net asset value, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid/ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s domestic trading day, which can lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.
Strategy Shares Gold Enhanced Yield ETF | Not Individually Redeemable [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” Fund shares are typically bought and sold in the secondary market, and investors typically pay brokerage commissions or other charges on these transactions.

 

Strategy Shares Gold Enhanced Yield ETF | Trading Issues [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for the Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Strategy Shares Gold Enhanced Yield ETF | Market Price Variance Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares, and will include a “bid-ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and the intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s net asset value, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid/ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s domestic trading day, which can lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

Strategy Shares Gold Enhanced Yield ETF | Foreign Investment Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Foreign Investment Risk. Investments in foreign securities tend to be more volatile and less liquid than investments in U.S. securities because, among other things, they involve risks relating to political, social, and economic developments abroad, including economic sanctions, as well as risks resulting from differences between the regulations and reporting standards and practices to which U.S. and foreign issuers are subject. Investing in foreign securities includes trading related risks (e.g., government supervision and regulation of foreign securities and currency markets, trading systems and brokers may be less than in the U.S., and foreign securities may be subject to foreign governmental restrictions, such as exchange controls).

 

Strategy Shares Gold Enhanced Yield ETF | Investment Style Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Investment Style Risk. The type of securities in which the Fund focuses may underperform other assets, asset classes, and/or the overall market.

 

Strategy Shares Gold Enhanced Yield ETF | Issuer Specific Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Issuer Specific Risk. The performance of the Fund depends on the performance of the issuers of the individual securities in which the Fund invests. Poor performance by any issuer may cause the value of its securities, and the value of the Fund’s shares, to decline. The value of a specific security can be more volatile than the market as a whole, and can perform differently from the value of the market as a whole.

 

Strategy Shares Gold Enhanced Yield ETF | Management Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Management Risk. The Advisor may not successfully implement the Fund’s investment strategies and, as a result, the Fund may not meet its investment objective.

 

Strategy Shares Gold Enhanced Yield ETF | Market Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Market Risk. The value of securities in the Fund’s portfolio will fluctuate and, as a result, the Fund’s NAV or market price per share may decline suddenly or over a sustained period of time. Overall market risks may also affect the value of the Fund. Factors such as domestic and foreign economic growth rates and market conditions, interest rate levels, trading and tariff events, geopolitical conflicts, interest rate levels, and political events may adversely affect the securities markets.

Strategy Shares Gold Enhanced Yield ETF | Active Trading Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Active Trading Risk. The Fund may trade securities actively, which could increase its transaction costs (thereby lowering its performance) and could increase the amount of taxes you owe by generating short-term gains, which may be taxed at a higher rate. Under certain market conditions, the Fund’s turnover may be very high and considerably higher than that of other funds.

 

Strategy Shares Gold Enhanced Yield ETF | Cash Transactions Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Cash Transactions Risk. ETFs generally are able to make in-kind redemptions and avoid being taxed on gains on the distributed portfolio securities at the Fund level. Because the Fund may effect redemptions partly or entirely in cash, rather than in-kind, it may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds. If the Fund recognizes gain on these sales, this generally will cause the Fund to recognize gain it might not otherwise have recognized, or to recognize such gain sooner than would otherwise be required if it were to distribute portfolio securities in-kind. The Fund generally intends to distribute these gains to shareholders to avoid being taxed on this gain at the Fund level and otherwise comply with the special tax rules that apply to it. This strategy may cause shareholders to be subject to tax on gains they would not otherwise be subject to, or at an earlier date than if they had made an investment in a different ETF.

 

Strategy Shares Gold Enhanced Yield ETF | Changing Fixed Income Market Conditions Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Changing Fixed Income Market Conditions Risk. The future direction of interest rates is uncertain. If interest rates rise, there is risk that rates across the financial system also may rise. Changes in government intervention may have adverse effects on the Fund’s investments, volatility, and illiquidity in debt markets. Interest rate increases could cause the value of the Fund to decrease. Federal Reserve policy changes may expose fixed-income and related markets to heightened volatility and may reduce liquidity for certain Fund investments, which could cause the value of a Fund’s investments and share price to decline. If a Fund invests in derivatives tied to fixed-income markets, the Fund may be more substantially exposed to these risks than a fund that does not invest in derivatives. To the extent a Fund experiences high redemptions because of these policy changes, the Fund may experience increased portfolio turnover, which will increase the costs the Fund incurs and may lower its performance. Furthermore, if rising interest rates cause a Fund to lose enough value, the Fund could also face increased redemptions, which could force the Fund to liquidate investments at disadvantageous times or prices, thereby adversely affecting the Fund. In addition, decreases in fixed income dealer market-making capacity may persist in the future, potentially leading to decreased liquidity and increased volatility in the fixed income markets.

Strategy Shares Gold Enhanced Yield ETF | Commodity Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Commodity Risk. Exposure to the commodities markets may subject a fund to greater volatility than investments in traditional securities. Commodity prices may be influenced by unfavorable weather, animal and plant disease, geologic and environmental factors, as well as changes in government regulation, such as tariffs, embargoes or burdensome production rules and restrictions. The Commodity Basket Component will invest in energy and industrial metals/precious metals commodities. Please see “Energy Sector Risk”, “Industrial Metals Sector Risk” and “Precious Metals Sector Risk” below.

 

Strategy Shares Gold Enhanced Yield ETF | Commodity Tax Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Commodity Tax Risk. The tax treatment of commodity-linked derivative instruments may be adversely affected by changes in legislation, regulations or other legally binding authority. If, as a result of any such adverse action, the income of the Fund from certain commodity-linked derivatives was treated as non-qualifying income, the Fund might fail to qualify as a regulated investment company and be subject to federal income tax at the Fund level, and all distributions from earnings and profits, including any distribution of net tax-exempt income and net long-term capital gains, would be taxable to Fund shareholders as ordinary income. Should the Internal Revenue Service issue further guidance, or Congress enact legislation, that adversely affects the tax treatment of the Subsidiary (which guidance might be applied to the Fund retroactively), it could, among other consequences, limit the Fund’s ability to pursue its investment strategy.

 

Strategy Shares Gold Enhanced Yield ETF | Counterparty Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Counterparty Risk. The Fund may engage in transactions in securities and financial instruments that involve counterparties. Counterparty risk is the risk that a counterparty (the other party to a transaction or an agreement, or the party with whom the Fund executes transactions) to a transaction with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.

 

Strategy Shares Gold Enhanced Yield ETF | Credit Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Credit Risk. Credit risk is the risk that an issuer of a security will fail to pay principal and interest in a timely manner, reducing the Fund’s total return. There is a risk that issuers will not make payments on fixed income securities held by the Fund, resulting in losses to the Fund. In addition, the credit quality of fixed income securities held by the Fund may be lowered if an issuer’s financial condition changes. The issuer of a fixed income security may also default on its obligations.

 

Strategy Shares Gold Enhanced Yield ETF | Derivatives Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Derivatives Risk. The performance of a derivative instrument depends largely on the performance of an underlying instrument, such as a currency, security, rate or index. In addition, the use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments. These risks include (i) the risk that the counterparty to a derivative transaction may be unwilling or unable to fulfill its contractual obligations; (ii) the risk of mispricing or improper valuation; and (iii) the risk that changes in the value of the derivative may not correlate perfectly with the underlying reference asset. Derivatives can also create leverage risk because they do not require payment up front equal to the economic exposure created by holding a position in the derivative. As a result, an adverse change in the value of the underlying asset could result in the Fund sustaining a loss that is substantially greater than the amount invested in the derivative or the anticipated value of the underlying asset, which may make the Fund’s returns more volatile and increase the risk of loss. Derivative instruments may be less liquid than more traditional investments, and the Fund may be unable to sell or close out its derivative positions at a desirable time or price. This risk may be more acute under adverse market conditions, during which the Fund may be most in need of liquidating its derivative positions. Additionally, the Fund’s obligation to make payments of margin, collateral, or settlement payments to counterparties may heighten liquidity demands on the Fund’s portfolio. Derivatives may be less tax efficient and subject to changing government regulation that could impact the Fund’s ability to use certain derivatives or their cost. When a derivative is used for hedging, the change in value of the derivative may also not correlate specifically with the risk of the underlying asset being hedged. Derivatives are subject to the risk of adverse market movements and the risk that markets could experience a change in volatility that adversely impacts Fund returns and the Fund’s obligations and exposures. Derivative prices are highly volatile and may fluctuate substantially during a short period of time. Such prices are influenced by numerous factors that affect the markets, including, but not limited to, changing supply and demand relationships; government programs and policies; national and international political and economic events; geopolitical conflicts; changes in interest rates; and inflation and deflation. Derivatives are also subject to operational risk, including potential documentation issues, settlement issues, systems failures, inadequate controls and human error, as well as legal risks arising from insufficient documentation, insufficient capacity or authority of counterparty, or the legality or enforceability of a contract. Derivatives strategies may not be successful, and their successful use will depend on the portfolio managers’ ability to accurately forecast movements in the market relating to the underlying asset.

 

Futures Risk. Investments in futures contracts involve leverage, which means a small percentage of assets invested in futures contracts can have a disproportionately large impact on the Fund. This risk could cause the Fund to lose more than the principal amount invested. In addition, futures contracts may become mispriced or improperly valued relative to the Advisor’s expectations and may not produce the desired investment results. Additionally, changes in the value of futures contracts may not track or correlate perfectly with the underlying reference asset because of temporary, or even long-term, supply and demand imbalances, and because futures contracts do not pay dividends.

 

Unlike equities, which typically entitle the holder to a continuing stake in a corporation, futures contracts normally specify a certain date for settlement in cash based on the reference asset. As the futures contracts approach expiration, they may be replaced by similar contracts that have a later expiration. This process is referred to as “rolling.” The actual realization of a potential roll cost will be dependent upon the difference in price of the near and distant contract. Because the margin requirement for futures contracts is less than the value of the assets underlying the futures contract, futures trading involves a degree of leverage. As a result, a relatively small price movement in a futures contract may result in immediate and substantial loss to the Fund, which could significantly adversely affect the Fund’s performance.

 

Leverage and Volatility Risk. Derivative contracts ordinarily have leverage inherent in their terms, meaning that the Fund can obtain significant investment exposure in return for meeting a relatively small margin or other investment requirement. The low margin deposits normally required in trading derivatives permit a high degree of leverage. Accordingly, a relatively small price movement may result in an immediate and substantial loss to the Fund, potentially in excess of the amounts invested or borrowed. The use of leverage may also cause the Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations or to meet collateral segregation requirements. The use of leveraged derivatives can magnify the Fund’s potential for gain or loss and, therefore, amplify the effects of market volatility on the Fund’s share price.

 

Liquidity Risk: It is possible that particular derivative investments might be difficult to purchase or sell, possibly preventing the Fund from executing positions at an advantageous time or price, or possibly requiring the Fund to dispose of other investments at unfavorable times or prices in order to satisfy its obligations.

 

Options Market Risk. Markets for options and options on futures contracts may not always operate on a fair and orderly basis. At times, prices for options and options on futures contracts may not represent fair market value and prices may be subject to manipulation, which may be extreme under some circumstances. The dysfunction and manipulation of volatility of options markets may make it difficult for a fund to effectively implement its investment strategy and achieve its investment objectives, and could potentially lead to significant losses.

 

Options Risk. There are risks associated with the Fund’s exposure to options. As a seller (writer) of a put option, the Fund will lose money if the value of the underlying reference instrument falls below (written put option) the respective option’s strike price. The Fund’s losses are potentially large in a written put transaction.

 

Over-the-Counter (“OTC”) Trading Risk. Certain of the derivatives in which the Fund may invest may be traded (and privately negotiated) in the OTC market. While the OTC derivatives market is the primary trading venue for many derivatives, it is largely unregulated. As a result, and similar to other privately negotiated contracts, the Fund is subject to counterparty credit risk with respect to such derivative contracts.

 

Total Return Swap Risk Total return swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to replace. Total return over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The Fund’s use of swaps involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments, and exposes the Fund to the risks associated with derivative instruments described above. In a standard “swap” transaction, two parties agree to exchange the returns, differentials in rates of return or some other amount earned or realized on the “notional amount” of predetermined investments or instruments, which may be adjusted for an interest factor. Certain derivatives risks are heightened with respect to over-the-counter (“OTC”) derivative instruments, like certain swap agreements, and may be greater during volatile market conditions. Such risks include the risk of leverage (i.e., the risk that an adverse change in the value of the underlying asset could result in the Fund sustaining a loss that is substantially greater than the amount invested in the derivative or the anticipated value of the underlying asset), counterparty risk (i.e., the risk of a counterparty’s unwillingness or inability to perform its obligations, including as a result of bankruptcy), credit risk (i.e., the risk that the issuer of the underlying asset may default on its obligations), and pricing risk (i.e., swaps may be difficult to value).
Strategy Shares Gold Enhanced Yield ETF | Futures Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Futures Risk. Investments in futures contracts involve leverage, which means a small percentage of assets invested in futures contracts can have a disproportionately large impact on the Fund. This risk could cause the Fund to lose more than the principal amount invested. In addition, futures contracts may become mispriced or improperly valued relative to the Advisor’s expectations and may not produce the desired investment results. Additionally, changes in the value of futures contracts may not track or correlate perfectly with the underlying reference asset because of temporary, or even long-term, supply and demand imbalances, and because futures contracts do not pay dividends.
Strategy Shares Gold Enhanced Yield ETF | Leverage and Volatility Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Leverage and Volatility Risk. Derivative contracts ordinarily have leverage inherent in their terms, meaning that the Fund can obtain significant investment exposure in return for meeting a relatively small margin or other investment requirement. The low margin deposits normally required in trading derivatives permit a high degree of leverage. Accordingly, a relatively small price movement may result in an immediate and substantial loss to the Fund, potentially in excess of the amounts invested or borrowed. The use of leverage may also cause the Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations or to meet collateral segregation requirements. The use of leveraged derivatives can magnify the Fund’s potential for gain or loss and, therefore, amplify the effects of market volatility on the Fund’s share price.

 

Strategy Shares Gold Enhanced Yield ETF | Liquidity Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Liquidity Risk: It is possible that particular derivative investments might be difficult to purchase or sell, possibly preventing the Fund from executing positions at an advantageous time or price, or possibly requiring the Fund to dispose of other investments at unfavorable times or prices in order to satisfy its obligations.

 

Strategy Shares Gold Enhanced Yield ETF | Options Market Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Options Market Risk. Markets for options and options on futures contracts may not always operate on a fair and orderly basis. At times, prices for options and options on futures contracts may not represent fair market value and prices may be subject to manipulation, which may be extreme under some circumstances. The dysfunction and manipulation of volatility of options markets may make it difficult for a fund to effectively implement its investment strategy and achieve its investment objectives, and could potentially lead to significant losses.

 

Strategy Shares Gold Enhanced Yield ETF | Options Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Options Risk. There are risks associated with the Fund’s exposure to options. As a seller (writer) of a put option, the Fund will lose money if the value of the underlying reference instrument falls below (written put option) the respective option’s strike price. The Fund’s losses are potentially large in a written put transaction.

 

Strategy Shares Gold Enhanced Yield ETF | Over-the-Counter ("OTC") Trading Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Over-the-Counter (“OTC”) Trading Risk. Certain of the derivatives in which the Fund may invest may be traded (and privately negotiated) in the OTC market. While the OTC derivatives market is the primary trading venue for many derivatives, it is largely unregulated. As a result, and similar to other privately negotiated contracts, the Fund is subject to counterparty credit risk with respect to such derivative contracts.
Strategy Shares Gold Enhanced Yield ETF | Total Return Swap Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Total Return Swap Risk Total return swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to replace. Total return over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The Fund’s use of swaps involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments, and exposes the Fund to the risks associated with derivative instruments described above. In a standard “swap” transaction, two parties agree to exchange the returns, differentials in rates of return or some other amount earned or realized on the “notional amount” of predetermined investments or instruments, which may be adjusted for an interest factor. Certain derivatives risks are heightened with respect to over-the-counter (“OTC”) derivative instruments, like certain swap agreements, and may be greater during volatile market conditions. Such risks include the risk of leverage (i.e., the risk that an adverse change in the value of the underlying asset could result in the Fund sustaining a loss that is substantially greater than the amount invested in the derivative or the anticipated value of the underlying asset), counterparty risk (i.e., the risk of a counterparty’s unwillingness or inability to perform its obligations, including as a result of bankruptcy), credit risk (i.e., the risk that the issuer of the underlying asset may default on its obligations), and pricing risk (i.e., swaps may be difficult to value).

 

Strategy Shares Gold Enhanced Yield ETF | Distribution Policy Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Distribution Policy Risk. Shareholders receiving periodic payments from the Fund may be under the impression that they are receiving net profits. However, all or a portion of a distribution may consist of a return of capital (i.e., from your original investment). Shareholders should not assume that the source of a distribution from the Fund is net profit. Any capital returned to investors through distributions will be distributed after payment of Fund fees and expenses. Shareholders should note that return of capital will reduce the tax basis of their shares and potentially increase the taxable gain, if any, upon disposition of their shares. For more information, please refer to the section of the Fund’s prospectus entitled “Tax Consequences”.

 

Strategy Shares Gold Enhanced Yield ETF | Duration Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Duration Risk. Longer-term fixed-income securities may be more sensitive to interest rate changes, particularly in periods of rising interest rates. Effective duration estimates price changes for relatively small changes in rates. If rates rise significantly, effective duration may tend to understate the drop in a security’s price. If rates drop significantly, effective duration may tend to overstate the rise in a security’s price.

 

Strategy Shares Gold Enhanced Yield ETF | ETF Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

ETF Risk. Like a mutual fund, the value of an ETF can fluctuate based on the prices of the securities owned by the ETF. Because the Fund may invest its assets in ETFs that have their own fees and expenses in addition to those charged directly by the Fund, the Fund may bear higher expenses than a fund that invests directly in individual securities. By investing in other ETFs, the Fund will be subject to the risks associated with the underlying investments of such ETFs. ETFs are also subject to the risks described under “ETF Structures Risk.”

 

Strategy Shares Gold Enhanced Yield ETF | Fixed Income Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Fixed Income Securities Risk. The value of the Fund’s investments in fixed income securities will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned by the Fund. In general, the market price of fixed income securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities. Other risk factors include credit risk (the risk that the debtor may default), extension risk (the risk that an issuer may exercise its right to repay principal on a fixed rate obligation held by the Fund later than expected), and prepayment risk (the risk that the debtor may pay its obligation early, thereby reducing the amount of interest payments). These risks could affect the value of a particular investment by the Fund, possibly causing the Fund’s share price and total return to be reduced and fluctuate more than other types of investments.

Strategy Shares Gold Enhanced Yield ETF | Gold Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Gold Risk. The price of gold may be affected by several factors, including the global gold supply and demand and investors’ expectations with respect to the rate of inflation. Developments affecting the value of gold may have a significant impact on the Fund. Gold markets have been, and will likely continue to be, subject to sharp price fluctuations, which may lead to significant price fluctuations in the shares of the Fund. In addition, it is possible that a shareholder may not realize his or her investment objective because the gold markets have historically experienced extended periods of flat or declining prices, in addition to sharp fluctuations. There is no assurance that gold will maintain its long-term value in terms of purchasing power in the future.

 

Strategy Shares Gold Enhanced Yield ETF | Income Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Income Risk. The Fund’s distributions to shareholders may decline when prevailing interest rates fall, when the Fund experiences deterioration of the underlying debt securities it holds, or when the Fund realizes a loss upon the sale of a debt security.

 

Strategy Shares Gold Enhanced Yield ETF | Industrial Metals Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Industrial Metals Sector Risk. Risks of investing in the industrial metals sector commodities include, in addition to other risks, substantial price fluctuations over short periods of time, imposition of import controls, increased competition, government regulation, disruptions in mining, storing, and refining of metals, and changes in industrial, governmental and commercial demand for certain metals.

 

Strategy Shares Gold Enhanced Yield ETF | Interest Rate Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Interest Rate Risk. Interest rate risk is the risk that bond prices overall, including the prices of securities held by the Fund, will decline over short or long periods of time due to rising interest rates. Bonds with longer maturities tend to be more sensitive to interest rates than bonds with shorter maturities. The maturity and effective duration of the Fund’s investment portfolio may vary materially, from time to time, and there is no assurance that the Fund will achieve or maintain any particular target maturity or effective duration of its investment portfolio.

 

Strategy Shares Gold Enhanced Yield ETF | Precious Metals Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Precious Metals Sector Risk. Prices of precious metals and of precious metal-related securities have historically been volatile. Economic, financial and political factors can cause periods of volatility. Because precious metals and other commodities do not generate investment income, the return on such investments will be derived solely from the appreciation or depreciation of such investments. Changes in the production and sale of precious metals by governments or central banks, or other large holders, can be unpredictable and may also have a significant impact on the prices of precious metals.

 

Strategy Shares Gold Enhanced Yield ETF | Regulatory Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Regulatory Risk. Changes in the laws or regulations of the United States, Cayman Islands, or other countries, including any changes to applicable tax laws and regulations, could impair the ability of the Fund to achieve its investment objective, and could increase the operating expenses of the Fund. The Fund and the Subsidiary are “commodity pools” under the U.S. Commodity Exchange Act (the “CEA”), and the Advisor is a “commodity pool operator” registered with and regulated by the CFTC.

 

Strategy Shares Gold Enhanced Yield ETF | Rule 144A Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Rule 144A Securities Risk. The Fund may invest in securities that are normally purchased or resold pursuant to Rule 144A under the Securities Act of 1933 (the “Securities Act”). Rule 144A securities are restricted securities that are not publicly traded and may be subject to legal restrictions on resale. Rule 144A securities are generally not traded on established markets, and the market for such securities is typically less active than the market for publicly traded securities. As a result, Rule 144A securities may be illiquid, difficult to value and subject to wide fluctuations in value. Delay or difficulty in selling such securities may result in a loss to the Fund.

 

Strategy Shares Gold Enhanced Yield ETF | U.S. Government Obligations Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

U.S. Government Obligations Risk. U.S. Treasury obligations are backed by the “full faith and credit” of the U.S. government and generally have negligible credit risk. However, due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. Securities issued or guaranteed by federal agencies or authorities and U.S. government-sponsored instrumentalities or enterprises may not be backed by the full faith and credit of the U.S. government, which could affect the Fund’s ability to recover should they default.

 

Strategy Shares Gold Enhanced Yield ETF | Volatility Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Volatility Risk. The Fund may have investments that appreciate or decrease significantly in value over short periods of time. This may cause the Fund’s net asset value and market price per share to experience significant increases or declines in value over short periods of time; however, all investments, whether long- or short-term, are subject to risk of loss.

 

Strategy Shares Gold Enhanced Yield ETF | Wholly Owned Subsidiary Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Wholly Owned Subsidiary Risk. By investing in the Subsidiary, the Fund is indirectly exposed to the commodities risks associated with the Subsidiary’s investments in commodity-related instruments. There can be no assurance that the Subsidiary’s investments will contribute to the Fund’s returns. The Subsidiary is not registered under the 1940 Act and is not subject to all the investor protections of the 1940 Act. Changes in the laws of the United States and/or the Cayman Islands could result in the inability of the Fund and/or the Subsidiary to operate as described in this Prospectus, and could adversely affect the Fund, such as by reducing the Fund’s investment returns.

Strategy Shares Gold Enhanced Yield ETF | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Non-Diversification Risk. To the extent that the Fund holds securities of a smaller number of issuers, or invests a larger percentage of its assets in a single issuer, than a diversified portfolio, the value of the Fund, as compared to the value of a diversified portfolio, will generally be more volatile and more sensitive to the performance of any one of those issuers, and to economic, political, market or regulatory events affecting any one of those issuers.

 

MONOPOLY ETF  
Prospectus [Line Items]  
Risk [Text Block]

As with any Exchange-Traded Fund (“ETF”), there is no guarantee that the Fund will achieve its investment objective. Investment markets are unpredictable and there will be certain market conditions where the Fund will not meet its investment objective and will lose money. The Fund’s net asset value (“NAV”), market price and returns will vary and you could lose money on your investment in the Fund, and those losses could be significant.

 

The following summarizes the principal risks of investing in the Fund. These risks could adversely affect the NAV, market price, total return, and the value of the Fund and your investment.

 

You could lose money by investing in the Fund. The Fund is subject to the risks summarized below. Any of these risks could adversely affect the Fund’s NAV, trading price, yield, total return, or ability to meet its investment objective.

 

ADR Risk. ADRs, which are typically issued by a bank, are certificates that evidence ownership of shares of a foreign company and are alternatives to purchasing foreign securities directly in their national markets and currencies. ADRs are subject to the same risks as direct investment in foreign companies and involve risks that are not found in investments in U.S. companies. ADRs may not track the price of the underlying foreign securities on which they are based, and their value may change materially at times when U.S. markets are not open for trading. To establish a value for the shares, the issuer establishes a “conversion rate” equal to one share of an ADR for a certain number of shares of the stock of a foreign company. As a result, even if the price of the foreign security does not change on its market, if the exchange rate of the local currency relative to the US Dollar declines, the ADR price would decline by a similar measure. Certain ADRs are not listed on an exchange and therefore may be considered to be illiquid.

 

Authorized Participant Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants. An “Authorized Participant” is a participant in the Continuous Net Settlement System of the National Securities Clearing Corporation or the Depository Trust Company (“DTC”), and that has executed a Participant Agreement with the Fund’s distributor (“Distributor”). To the extent these Authorized Participants exit the business or are unable to process creation and/or redemption orders and no other Authorized Participant is able to step forward to process creation and/or redemption orders, in either of these cases, shares of the Fund may trade like closed-end fund shares at a discount to NAV and possibly face delisting. These risks could cause intraday bid/ask spreads for the Fund’s shares to widen.

 

Equity Securities Risk. The price of common stock in the Fund’s portfolio will fluctuate based on actual or perceived changes in a company’s financial condition and on market and economic conditions. Investor perceptions are based on various and unpredictable factors, including expectations regarding government, economic, monetary and fiscal policies; inflation and interest rates; economic expansion or contraction; and global or regional political, economic and banking crises.

 

ETF Structure Risks. The Fund is structured as an ETF and as a result is subject to special risks, including:

 

Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” You may incur brokerage costs purchasing enough Shares to constitute a Creation Unit. Fund shares are typically bought and sold in the secondary market, and investors typically pay brokerage commissions or other charges on these transactions.

 

Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for the Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares and will include a “bid-ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s NAV, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid/ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s trading day, which can lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which can cause the intra-day bid/ask spread of the Fund to widen.

 

Foreign Securities Risk. Since the Fund’s investments may include ADRs, the Fund is subject to risks beyond those associated with investing in domestic securities. The value of foreign securities is subject to currency fluctuations. Foreign companies are generally not subject to the same regulatory requirements as U.S. companies, thereby resulting in less publicly available information about these companies. In addition, foreign accounting, auditing and financial reporting standards generally differ from those applicable to U.S. companies.

 

Large Capitalization Company Risk. Investments in larger, more established companies are subject to the risk that larger companies are sometimes unable to attain the high growth rates of successful, smaller companies, especially during extended periods of economic expansion. Large capitalization companies may be less able than smaller capitalization companies to adapt to changing market conditions. Larger, more established companies may be unable to respond quickly to new competitive challenges, such as changes in consumer tastes or innovative smaller competitors, potentially resulting in lower markets for their common stock. During different market cycles, the performance of large capitalization companies has trailed the overall performance of the broader securities markets.

 

Management Risk. The investment strategies and models employed by the Sub-Advisor in selecting investments and asset allocations for the Fund may not result in an increase in the value of your investment or in overall performance equal to other similar investment vehicles having similar investment strategies. In addition, the Sub-Advisor’s judgment about the attractiveness, value and potential appreciation of particular stocks or other securities in which the Fund invests may prove to be incorrect, and there is no guarantee that the Sub-Advisor’s judgment will produce the desired result. The measures that the Advisor, Sub-Advisor or portfolio manager use to monitor and manage the risks of the Fund may not accomplish the intended results and the Fund may experience losses significantly greater than expected.

 

Market Risk. The value of securities in the Fund’s portfolio will fluctuate and, as a result, the Fund’s share price may decline suddenly or over a sustained period of time. Overall market risks may also affect the value of the Fund. Factors such as economic growth and market conditions, trading and tariff events, geopolitical conflicts, interest rate levels and political events affect the securities markets.

 

Medium (Mid) Capitalization Company Risk. To the extent the Fund invests in the stocks of mid-sized companies, the Fund may be subject to additional risks. The earnings and prospects of these companies tend to be more volatile than larger companies. These companies may experience higher failure rates than larger companies. Midsized companies normally have a lower trading volume than larger companies, which may tend to make their market price fall more disproportionately than larger companies in response to selling pressures. Mid-sized companies may also have limited markets, product lines or financial resources, and may lack management experience.

 

New Fund Risk. The Fund is a relatively new fund with limited history of operations as an ETF for investors to evaluate. If the Fund is unable to achieve an economic size, expenses will be higher than expected and the Fund might close, which could produce adverse tax consequences for shareholders.

 

Non-Diversification Risk. The Fund is classified as a “non-diversified” fund under the 1940 Act. Accordingly, the Fund may invest a high percentage of its assets in a limited number of issuers. To the extent that the Fund holds securities of a smaller number of issuers or invests a larger percentage of its assets in a single issuer than would a diversified portfolio, the value of the Fund, as compared to the value of a diversified portfolio, will generally be more volatile and more sensitive to the performance of any one of those issuers, as well as to economic, political, market or regulatory events affecting any one of those issuers.

 

Sector Risk. Companies with high market dominance can be susceptible to sector-specific downturns or sudden valuation corrections if regulatory or competitive landscapes shift. Economic, legislative or regulatory developments may occur that significantly affect the sector. This may cause the Fund’s NAV to fluctuate more than that of a fund that does not focus in a particular sector.

 

The Fund is subject to the following specific sector risks:

 

Information Technology Sector Risk. Information technology companies face intense competition and may have limited product lines, markets, financial resources or personnel. The products of information technology companies may face obsolescence. Companies in the information technology sector are heavily dependent on patent and intellectual property rights.

 

For more information, please see the section of the Fund’s Prospectus entitled “Additional Information About the Fund’s Principal Investment Strategies and Related Risks.”

MONOPOLY ETF | Authorized Participant Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Authorized Participant Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants. An “Authorized Participant” is a participant in the Continuous Net Settlement System of the National Securities Clearing Corporation or the Depository Trust Company (“DTC”), and that has executed a Participant Agreement with the Fund’s distributor (“Distributor”). To the extent these Authorized Participants exit the business or are unable to process creation and/or redemption orders and no other Authorized Participant is able to step forward to process creation and/or redemption orders, in either of these cases, shares of the Fund may trade like closed-end fund shares at a discount to NAV and possibly face delisting. These risks could cause intraday bid/ask spreads for the Fund’s shares to widen.

 

MONOPOLY ETF | Equity Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Equity Securities Risk. The price of common stock in the Fund’s portfolio will fluctuate based on actual or perceived changes in a company’s financial condition and on market and economic conditions. Investor perceptions are based on various and unpredictable factors, including expectations regarding government, economic, monetary and fiscal policies; inflation and interest rates; economic expansion or contraction; and global or regional political, economic and banking crises.

 

MONOPOLY ETF | ETF Structure Risks [Member]  
Prospectus [Line Items]  
Risk [Text Block]

ETF Structure Risks. The Fund is structured as an ETF and as a result is subject to special risks, including:

 

Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” You may incur brokerage costs purchasing enough Shares to constitute a Creation Unit. Fund shares are typically bought and sold in the secondary market, and investors typically pay brokerage commissions or other charges on these transactions.

 

Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for the Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares and will include a “bid-ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s NAV, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid/ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s trading day, which can lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which can cause the intra-day bid/ask spread of the Fund to widen.
MONOPOLY ETF | Not Individually Redeemable [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Not Individually Redeemable. Shares are not individually redeemable and may be redeemed by the Fund at NAV only in large blocks known as “Creation Units.” You may incur brokerage costs purchasing enough Shares to constitute a Creation Unit. Fund shares are typically bought and sold in the secondary market, and investors typically pay brokerage commissions or other charges on these transactions.

 

MONOPOLY ETF | Trading Issues [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange. An active trading market for the Fund’s shares may not be developed or maintained. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as authorized participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares.

 

MONOPOLY ETF | Market Price Variance Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares and will include a “bid-ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV and intra-day bid/ask spreads may widen.

 

In times of market stress, market makers may step away from their role market making in shares of ETFs and in executing trades, which can lead to differences between the market value of Fund shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

The market price for the Fund’s shares may deviate from the Fund’s NAV, particularly during times of market stress, with the result that investors may pay significantly more or significantly less for Fund shares than the Fund’s NAV, which is reflected in the bid/ask price for Fund shares or in the closing price.

 

When all or a portion of an ETF’s underlying securities trade in a market that is closed when the market for the Fund’s shares is open, there may be changes from the last quote of the closed market and the quote from the Fund’s trading day, which can lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which could cause the intra-day bid/ask spread of the Fund to widen.

 

In stressed market conditions, the market for the Fund’s shares may become less liquid in response to the deteriorating liquidity of the Fund’s portfolio. This adverse effect on the liquidity of the Fund’s shares may, in turn, lead to differences between the market value of the Fund’s shares and the Fund’s NAV, which can cause the intra-day bid/ask spread of the Fund to widen.

 

MONOPOLY ETF | Large Capitalization Company Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Large Capitalization Company Risk. Investments in larger, more established companies are subject to the risk that larger companies are sometimes unable to attain the high growth rates of successful, smaller companies, especially during extended periods of economic expansion. Large capitalization companies may be less able than smaller capitalization companies to adapt to changing market conditions. Larger, more established companies may be unable to respond quickly to new competitive challenges, such as changes in consumer tastes or innovative smaller competitors, potentially resulting in lower markets for their common stock. During different market cycles, the performance of large capitalization companies has trailed the overall performance of the broader securities markets.

 

MONOPOLY ETF | Management Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Management Risk. The investment strategies and models employed by the Sub-Advisor in selecting investments and asset allocations for the Fund may not result in an increase in the value of your investment or in overall performance equal to other similar investment vehicles having similar investment strategies. In addition, the Sub-Advisor’s judgment about the attractiveness, value and potential appreciation of particular stocks or other securities in which the Fund invests may prove to be incorrect, and there is no guarantee that the Sub-Advisor’s judgment will produce the desired result. The measures that the Advisor, Sub-Advisor or portfolio manager use to monitor and manage the risks of the Fund may not accomplish the intended results and the Fund may experience losses significantly greater than expected.

 

MONOPOLY ETF | Market Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Market Risk. The value of securities in the Fund’s portfolio will fluctuate and, as a result, the Fund’s share price may decline suddenly or over a sustained period of time. Overall market risks may also affect the value of the Fund. Factors such as economic growth and market conditions, trading and tariff events, geopolitical conflicts, interest rate levels and political events affect the securities markets.

 

MONOPOLY ETF | Medium (Mid) Capitalization Company Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Medium (Mid) Capitalization Company Risk. To the extent the Fund invests in the stocks of mid-sized companies, the Fund may be subject to additional risks. The earnings and prospects of these companies tend to be more volatile than larger companies. These companies may experience higher failure rates than larger companies. Midsized companies normally have a lower trading volume than larger companies, which may tend to make their market price fall more disproportionately than larger companies in response to selling pressures. Mid-sized companies may also have limited markets, product lines or financial resources, and may lack management experience.

 

MONOPOLY ETF | Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Sector Risk. Companies with high market dominance can be susceptible to sector-specific downturns or sudden valuation corrections if regulatory or competitive landscapes shift. Economic, legislative or regulatory developments may occur that significantly affect the sector. This may cause the Fund’s NAV to fluctuate more than that of a fund that does not focus in a particular sector.

 

The Fund is subject to the following specific sector risks:

 

Information Technology Sector Risk. Information technology companies face intense competition and may have limited product lines, markets, financial resources or personnel. The products of information technology companies may face obsolescence. Companies in the information technology sector are heavily dependent on patent and intellectual property rights.

MONOPOLY ETF | ADR Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

ADR Risk. ADRs, which are typically issued by a bank, are certificates that evidence ownership of shares of a foreign company and are alternatives to purchasing foreign securities directly in their national markets and currencies. ADRs are subject to the same risks as direct investment in foreign companies and involve risks that are not found in investments in U.S. companies. ADRs may not track the price of the underlying foreign securities on which they are based, and their value may change materially at times when U.S. markets are not open for trading. To establish a value for the shares, the issuer establishes a “conversion rate” equal to one share of an ADR for a certain number of shares of the stock of a foreign company. As a result, even if the price of the foreign security does not change on its market, if the exchange rate of the local currency relative to the US Dollar declines, the ADR price would decline by a similar measure. Certain ADRs are not listed on an exchange and therefore may be considered to be illiquid.

MONOPOLY ETF | Foreign Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Foreign Securities Risk. Since the Fund’s investments may include ADRs, the Fund is subject to risks beyond those associated with investing in domestic securities. The value of foreign securities is subject to currency fluctuations. Foreign companies are generally not subject to the same regulatory requirements as U.S. companies, thereby resulting in less publicly available information about these companies. In addition, foreign accounting, auditing and financial reporting standards generally differ from those applicable to U.S. companies.

MONOPOLY ETF | New Fund Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

New Fund Risk. The Fund is a relatively new fund with limited history of operations as an ETF for investors to evaluate. If the Fund is unable to achieve an economic size, expenses will be higher than expected and the Fund might close, which could produce adverse tax consequences for shareholders.

 

MONOPOLY ETF | Information Technology Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Information Technology Sector Risk. Information technology companies face intense competition and may have limited product lines, markets, financial resources or personnel. The products of information technology companies may face obsolescence. Companies in the information technology sector are heavily dependent on patent and intellectual property rights.

MONOPOLY ETF | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Non-Diversification Risk. The Fund is classified as a “non-diversified” fund under the 1940 Act. Accordingly, the Fund may invest a high percentage of its assets in a limited number of issuers. To the extent that the Fund holds securities of a smaller number of issuers or invests a larger percentage of its assets in a single issuer than would a diversified portfolio, the value of the Fund, as compared to the value of a diversified portfolio, will generally be more volatile and more sensitive to the performance of any one of those issuers, as well as to economic, political, market or regulatory events affecting any one of those issuers.