Investment Risks - BLACKROCK NATURAL RESOURCES TRUST |
Apr. 30, 2025 |
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| Natural Resource Related Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ◼ Natural Resource Related Securities Risk — Because the Fund concentrates its investments in natural resource related securities, the Fund is subject to the risks associated with natural resource investments in addition to the general risk of the stock market. This means the Fund is more vulnerable to the price movements of natural resources and factors that particularly affect the oil, gas, mining, energy, chemicals, paper, steel or agriculture sectors than a more broadly diversified fund. Because the Fund invests primarily in companies with natural resource assets, there is the risk that the Fund will perform poorly during a downturn in natural resource prices. Some of the commodities used as raw materials or produced by these companies are subject to broad price fluctuations as a result of industry wide supply and demand factors. In addition, companies in the natural resources sector may be subject to special risks associated with natural or man-made disasters.
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| Commodities Market Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ◼ Commodities Market Risk — Stocks of companies engaged in commodities related industries, such as energy or natural resources companies, are especially affected by variations in the commodities markets (that may be due to market events, regulatory developments or other factors that the Fund cannot control) and these companies may lack the resources and the broad business lines to weather hard times. |
| Agricultural Production Industry Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ◼ Agricultural Production Industry Risk — Companies engaged in agricultural production may be adversely affected by changes or trends in commodity prices and labor costs, which may be influenced by unpredictable factors. Many companies in the agricultural production industry are subject to government subsidy policies and environmental, health and safety laws and regulations. Any changes to these policies and regulations, or the imposition of tariffs or other trade restraints, may have a material adverse effect on companies operating in this industry. Adverse weather conditions (such as floods or droughts), natural disasters and other factors, such as disease outbreaks, war or other conflict, also may adversely affect companies operating in this industry. |
| Asset Based Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ◼ Asset-Based Securities Risk — Asset-based securities are fixed-income securities whose value is related to the market price of a certain natural resource, such as a precious metal. Although the market price of these securities is expected to follow the market price of the related resource, there may not be perfect correlation. There are special risks associated with certain types of natural resource assets that will also affect the value of asset-based securities related to those assets. For example, precious metal prices historically have been very volatile, which may adversely affect the financial condition of companies involved with precious metals. The production and sale of precious metals by governments or central banks or other larger holders can be affected by various economic, financial, social and political factors, which may be unpredictable and may have a significant impact on the prices of precious metals. Other factors that may affect the prices of precious metals and securities related to them include changes in inflation, the outlook for inflation and changes in industrial and commercial demand for precious metals. |
| Chemicals Industry Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ◼ Chemicals Industry Risk — The chemicals industry may be significantly affected by intense competition, product obsolescence, raw materials prices, and government regulation, and may be subject to risks associated with the production, handling and disposal of hazardous components, and litigation arising out of environmental contamination. |
| Convertible Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ◼ Convertible Securities Risk — The market value of a convertible security performs like that of a regular debt security; that is, if market interest rates rise, the value of a convertible security usually falls. In addition, convertible securities are subject to the risk that the issuer will not be able to pay interest, principal or dividends when due, and their market value may change based on changes in the issuer’s credit rating or the market’s perception of the issuer’s creditworthiness. Since it derives a portion of its value from the common stock into which it may be converted, a convertible security is also subject to the same types of market and issuer risks that apply to the underlying common stock, including the potential for increased volatility in the price of the convertible security. |
| Derivatives Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ◼ Derivatives Risk — The Fund’s use of derivatives may increase its costs, reduce the Fund’s returns and/or increase volatility. Derivatives involve significant risks, including: Leverage Risk — The Fund’s use of derivatives can magnify the Fund’s gains and losses. Relatively small market movements may result in large changes in the value of a derivatives position and can result in losses that greatly exceed the amount originally invested. Market Risk — Some derivatives are more sensitive to interest rate changes and market price fluctuations than other securities. The Fund could also suffer losses related to its derivatives positions as a result of unanticipated market movements, which losses are potentially unlimited. Finally, BlackRock may not be able to predict correctly the direction of securities prices, interest rates and other economic factors, which could cause the Fund’s derivatives positions to lose value. Counterparty Risk — Derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will be unable or unwilling to fulfill its contractual obligation, and the related risks of having concentrated exposure to such a counterparty. Illiquidity Risk — The possible lack of a liquid secondary market for derivatives and the resulting inability of the Fund to sell or otherwise close a derivatives position could expose the Fund to losses and could make derivatives more difficult for the Fund to value accurately. Operational Risk — The use of derivatives includes the risk of potential operational issues, including documentation issues, settlement issues, systems failures, inadequate controls and human error. Legal Risk — The risk of insufficient documentation, insufficient capacity or authority of counterparty, or legality or enforceability of a contract. Volatility and Correlation Risk — Volatility is defined as the characteristic of a security, an index or a market to fluctuate significantly in price within a short time period. A risk of the Fund’s use of derivatives is that the fluctuations in their values may not correlate with the overall securities markets. Valuation Risk — Valuation for derivatives may not be readily available in the market. Valuation may be more difficult in times of market turmoil since many investors and market makers may be reluctant to purchase complex instruments or quote prices for them. Hedging Risk — Hedges are sometimes subject to imperfect matching between the derivative and the underlying security, and there can be no assurance that the Fund’s hedging transactions will be effective. The use of hedging may result in certain adverse tax consequences. Tax Risk — Certain aspects of the tax treatment of derivative instruments, including swap agreements and commodity-linked derivative instruments, are currently unclear and may be affected by changes in legislation, regulations or other legally binding authority. Such treatment may be less favorable than that given to a direct investment in an underlying asset and may adversely affect the timing, character and amount of income the Fund realizes from its investments.
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| Emerging Markets Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ◼ Emerging Markets Risk — Emerging markets are riskier than more developed markets because they tend to develop unevenly and may never fully develop. Investments in emerging markets may be considered speculative. Emerging markets are more likely to experience hyperinflation and currency devaluations, which adversely affect returns to U.S. investors. In addition, many emerging financial markets have far lower trading volumes and less liquidity than developed markets. |
| Energy Sector Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ◼ Energy Sector Risk —The market value of securities in the energy sector may decline for many reasons, including, among others, changes in energy prices, energy supply and demand, government regulations, costs related to exploration and production and energy conservation efforts. Companies in the energy sector may also be significantly impacted by natural disasters, social and political unrest, war and environmental damage and may also be at risk for increased litigation and negative publicity or public perception. The energy sector may experience significant market volatility (e.g., as a result of Russia’s invasion of Ukraine in February 2022 and the resulting sanctions on Russia and other responses by the U.S. and other actors). |
| Foreign Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ◼ Foreign Securities Risk — Foreign investments often involve special risks not present in U.S. investments that can increase the chances that the Fund will lose money. These risks include: ◼ The Fund generally holds its foreign securities and cash in foreign banks and securities depositories, which may be recently organized or new to the foreign custody business and may be subject to only limited or no regulatory oversight. ◼ Changes in foreign currency exchange rates can affect the value of the Fund’s portfolio. ◼ The economies of certain foreign markets may not compare favorably with the economy of the United States with respect to such issues as growth of gross national product, reinvestment of capital, resources and balance of payments position. ◼ The governments of certain countries, or the U.S. Government with respect to certain countries, may prohibit or impose substantial restrictions through capital controls and/or sanctions on foreign investments in the capital markets or certain industries in those countries, which may prohibit or restrict the ability to own or transfer currency, securities, derivatives or other assets. ◼ Many foreign governments do not supervise and regulate stock exchanges, brokers and the sale of securities to the same extent as does the United States and may not have laws to protect investors that are comparable to U.S. securities laws. ◼ Settlement and clearance procedures in certain foreign markets may result in delays in payment for or delivery of securities not typically associated with settlement and clearance of U.S. investments. ◼ The Fund’s claims to recover foreign withholding taxes may not be successful, and if the likelihood of recovery of foreign withholding taxes materially decreases, due to, for example, a change in tax regulation or approach in the foreign country, accruals in the Fund’s net asset value for such refunds may be written down partially or in full, which will adversely affect the Fund’s net asset value. |
| Investment Style Risk [Member] | |
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| Risk [Text Block] | ◼ Investment Style Risk — Under certain market conditions, value investments have performed better during periods of economic recovery. Therefore, this investment style may over time go in and out of favor. At times when the investment style used by the Fund is out of favor, the Fund may underperform other equity funds that use different investment styles. |
| Leverage Risk [Member] | |
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| Risk [Text Block] | ◼ Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage. |
| Market Risk and Selection Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ◼ Market Risk and Selection Risk — Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. The value of a security or other asset may decline due to changes in general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or factors that affect a particular issuer or issuers, exchange, country, group of countries, region, market, industry, group of industries, sector or asset class. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issues like pandemics or epidemics, recessions, or other events could have a significant impact on the Fund and its investments. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money. |
| Metals and Mining Industry Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ◼ Metals and Mining Industry Risk — Companies in the metals and mining industry are susceptible to fluctuations in worldwide metal prices and extraction and production costs. In addition, metals and mining companies may have significant operations in areas at risk for social and political unrest, security concerns and environmental damage. These companies may also be at risk for increased government regulation and intervention. Such risks may adversely affect the issuers to which the Fund has exposure. |
| Mid Cap Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ◼ Mid Cap Securities Risk — The securities of mid cap companies generally trade in lower volumes and are generally subject to greater and less predictable price changes than the securities of larger capitalization companies. |
| Operational and Technology Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ◼ Operational and Technology Risks — The Fund is directly and indirectly susceptible to operational and technology risks, including those related to human errors, processing errors, communication errors, systems failures, cybersecurity incidents, and the use of artificial intelligence and machine learning (“AI”), which may result in losses for the Fund and its shareholders or may impair the Fund’s operations. While the Fund’s service providers are required to have appropriate operational, information security and cybersecurity risk management policies and procedures, their methods of risk management may differ from those of the Fund. Operational and technology risks for the issuers in which the Fund invests could also result in material adverse consequences for such issuers and may cause the Fund’s investments in such issuers to lose value. |
| Precious Metal and Related Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ◼ Precious Metal and Related Securities Risk — Prices of precious metals and of precious metal related securities historically have been very volatile. The high volatility of precious metal prices may adversely affect the financial condition of companies involved with precious metals. The production and sale of precious metals by governments or central banks or other larger holders can be affected by various economic, financial, social and political factors, which may be unpredictable and may have a significant impact on the prices of precious metals. Other factors that may affect the prices of precious metals and securities related to them include changes in inflation, the outlook for inflation and changes in industrial and commercial demand for precious metals. |
| Preferred Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ◼ Preferred Securities Risk — Preferred securities may pay fixed or adjustable rates of return. Preferred securities are subject to issuer-specific and market risks applicable generally to equity securities. In addition, a company’s preferred securities generally pay dividends only after the company makes required payments to holders of its bonds and other debt. For this reason, the value of preferred securities will usually react more strongly than bonds and other debt to actual or perceived changes in the company’s financial condition or prospects. Preferred securities of smaller companies may be more vulnerable to adverse developments than preferred securities of larger companies. |
| Rights Risk [Member] | |
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| Risk [Text Block] | ◼ Rights Risk — The failure to exercise subscription rights to purchase common stock would result in the dilution of the Fund’s interest in the issuing company. The market for such rights is not well developed, and, accordingly, the Fund may not always realize full value on the sale of rights. |
| Risk of Investing in the United States [Member] | |
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| Risk [Text Block] | ◼ Risk of Investing in the United States — Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure. |
| Sector Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ◼ Sector Risk — Sector risk is the risk that the Fund’s concentration in the securities of companies in a specific market sector or industry will cause the Fund to be more exposed to the price movements of companies in and developments affecting that sector than a more broadly diversified fund. To the extent that the Fund concentrates its investments in a particular sector, there is the risk that the Fund will perform poorly during a downturn in that sector. |
| Equity Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ◼ Equity Securities Risk — Stock markets are volatile. The price of equity securities fluctuates based on changes in a company’s financial condition and overall market and economic conditions. |
| Risk Lose Money [Member] | |
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| Risk [Text Block] | You may lose part or all of your investment in the Fund or your investment may not perform as well as other similar investments. |