Investment Risks |
Apr. 30, 2026 |
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| Roundhill Ball Metaverse ETF | IPO Risk Member | |
| Prospectus [Line Items] | |
| Risk [Text Block] | IPO Risk. The Fund may at times have the opportunity to invest in IPO shares or in shares of companies that have recently undergone an IPO. The market value of such shares can have significant volatility due to factors such as the absence of a prior public market, unseasoned trading, a small number of shares available for trading and limited information about the issuer. The purchase of IPO shares may involve high transaction costs and the Fund may lose money on an investment in such securities.
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| Roundhill Cannabis ETF | IPO Risk Member | |
| Prospectus [Line Items] | |
| Risk [Text Block] | IPO Risk. The Fund may at times have the opportunity to invest in IPO shares or in shares of companies that have recently undergone an IPO. The market value of such shares can have significant volatility due to factors such as the absence of a prior public market, unseasoned trading, a small number of shares available for trading and limited information about the issuer. The purchase of IPO shares may involve high transaction costs and the Fund may lose money on an investment in such securities.
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| Roundhill Video Games ETF | IPO Risk Member | |
| Prospectus [Line Items] | |
| Risk [Text Block] | IPO Risk. The Fund may at times have the opportunity to invest in IPO shares or in shares of companies that have recently undergone an IPO. The market value of such shares can have significant volatility due to factors such as the absence of a prior public market, unseasoned trading, a small number of shares available for trading and limited information about the issuer. The purchase of IPO shares may involve high transaction costs and the Fund may lose money on an investment in such securities.
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| Roundhill Sports Betting & iGaming ETF | IPO Risk Member | |
| Prospectus [Line Items] | |
| Risk [Text Block] | IPO Risk. The Fund may at times have the opportunity to invest in IPO shares or in shares of companies that have recently undergone an IPO. The market value of such shares can have significant volatility due to factors such as the absence of a prior public market, unseasoned trading, a small number of shares available for trading and limited information about the issuer. The purchase of IPO shares may involve high transaction costs and the Fund may lose money on an investment in such securities.
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| Roundhill Sports Betting & iGaming ETF | Industry Exposure Risk Member | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Industry Exposure Risk. The Fund expects to have significant exposure to the Casinos & Gaming Industry. As a result, the Fund is more vulnerable to adverse market, economic, regulatory, political or other developments affecting this industry than a fund that invests its assets in a more diversified manner. •Casinos & Gaming Industry Risk. The Casinos & Gaming Industry includes owners and operators of casinos and gaming facilities, and companies providing lottery and betting services. The Casinos & Gaming Industry is highly competitive and companies operating in the Casinos & Gaming Industry rely heavily on consumer spending and the availability of disposable income for success. In addition, the Casinos & Gaming Industry may be negatively affected by changes in economic conditions, consumer tastes and discretionary income levels, technological developments, limited financial resources, competition from competing entertainment options, and competition for key personnel. Casinos are closely tied to the travel and tourism industry and are particularly sensitive to economic shutdowns and mitigation strategies, such as the COVID-19 pandemic. In addition, Casinos & Gaming Industry companies are highly regulated, and state and federal legislative or regulatory changes and licensing issues (as well as the laws of other countries) can significantly impact their ability to operate in certain jurisdictions. The Casinos & Gaming Industry is a sub-industry of the Hotels, Restaurants & Leisure Industry within the Consumer Discretionary Sector.
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| Roundhill Sports Betting & iGaming ETF | Industry Exposure Risk, Casinos & Gaming Industry Risk Member | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Casinos & Gaming Industry Risk. The Casinos & Gaming Industry includes owners and operators of casinos and gaming facilities, and companies providing lottery and betting services. The Casinos & Gaming Industry is highly competitive and companies operating in the Casinos & Gaming Industry rely heavily on consumer spending and the availability of disposable income for success. In addition, the Casinos & Gaming Industry may be negatively affected by changes in economic conditions, consumer tastes and discretionary income levels, technological developments, limited financial resources, competition from competing entertainment options, and competition for key personnel. Casinos are closely tied to the travel and tourism industry and are particularly sensitive to economic shutdowns and mitigation strategies, such as the COVID-19 pandemic. In addition, Casinos & Gaming Industry companies are highly regulated, and state and federal legislative or regulatory changes and licensing issues (as well as the laws of other countries) can significantly impact their ability to operate in certain jurisdictions. The Casinos & Gaming Industry is a sub-industry of the Hotels, Restaurants & Leisure Industry within the Consumer Discretionary Sector.
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| Roundhill Sports Betting & iGaming ETF | Management Risk Member | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Management Risk. The Fund is actively-managed and may not meet its investment objective based on the Adviser’s and Sub-Adviser’s success or failure to implement investment strategies for the Fund. The Sub-Adviser’s evaluations and assumptions regarding issuers, securities, and other factors may not successfully achieve the Fund’s investment objective given actual market conditions.
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