REX Peptide ETF AUTHORIZED PARTICIPANTS, MARKET MAKERS, AND LIQUIDITY PROVIDERS LIMITATION RISK [Member] CONCENTRATION RISK [Member] HEALTHCARE SECTOR RISK [Member] PHARMACEUTICALS, BIOTECHNOLOGY & LIFE SCIENCES INDUSTRY RISK [Member] COSTS OF BUYING AND SELLING FUND SHARES RISK [Member] CURRENCY RISK [Member] CYBER SECURITY RISK [Member] DEPOSITARY RECEIPTS RISK [Member] DIVIDEND RISK [Member] EQUITY SECURITIES RISK [Member] EUROPE RISK [Member] HIGH PORTFOLIO TURNOVER RISK [Member] INDEX PROVIDER RISK [Member] Errors in the Index [Member] Data sources and rebalancing [Member] INTERNATIONAL CLOSED MARKET TRADING RISK [Member] LARGE CAPITALIZATION COMPANIES RISK [Member] MARKET MAKER RISK [Member] MARKET RISK [Member] MICRO, SMALL AND/OR MID CAPITALIZATION COMPANIES RISK [Member] NEW FUND RISK [Member] NON-CORRELATION RISK [Member] NON-U.S. SECURITIES RISK [Member] OPERATIONAL RISK [Member] PASSIVE INVESTMENT RISK [Member] PEPTIDE COMPANIES RISK [Member] PREMIUM/DISCOUNT RISK [Member] TRADING ISSUES RISK [Member] VOLATILITY RISK [Member] REX Peptide ETF [Member] REX Peptide ETF. REX Peptide ETF. VOLATILITY RISK. TRADING ISSUES RISK. PREMIUM/DISCOUNT RISK. PEPTIDE COMPANIES RISK. PASSIVE INVESTMENT RISK. OPERATIONAL RISK. NON-CORRELATION RISK. NEW FUND RISK. MICRO, SMALL AND/OR MID CAPITALIZATION COMPANIES RISK. MARKET RISK. MARKET MAKER RISK. LARGE CAPITALIZATION COMPANIES RISK. INTERNATIONAL CLOSED MARKET TRADING RISK. Data sources and rebalancing. Errors in the Index. INDEX PROVIDER RISK. HIGH PORTFOLIO TURNOVER RISK. EUROPE RISK. EQUITY SECURITIES RISK. DIVIDEND RISK. DEPOSITARY RECEIPTS RISK. CYBER SECURITY RISK. CURRENCY RISK. COSTS OF BUYING AND SELLING FUND SHARES RISK. HEALTHCARE SECTOR RISK. CONCENTRATION RISK. AUTHORIZED PARTICIPANTS, MARKET MAKERS, AND LIQUIDITY PROVIDERS LIMITATION RISK. PHARMACEUTICALS, BIOTECHNOLOGY & LIFE SCIENCES INDUSTRY RISK NON-U.S. SECURITIES RISK.