Roundhill Photonics & Optics ETF Roundhill Photonics & Optics ETF Shares PHOTONIC AND OPTICAL COMPANIES RISK MARKET RISK LINE OF BUSINESS RISK EQUITY SECURITIES RISK ACTIVE MANAGEMENT RISK ASIA RISK ASSET CLASS RISK CONCENTRATION RISK CURRENT MARKET CONDITIONS RISK CYBERSECURITY RISK DEPOSITARY RECEIPTS RISK DERIVATIVES RISK EMERGING MARKETS RISK FORWARD CONTRACTS RISK INFORMATION TECHNOLOGY COMPANIES RISK INTERNATIONAL CLOSED MARKET TRADING RISK ISSUER RISK LARGE-CAPITALIZATION COMPANIES RISK MID-CAPITALIZATION COMPANIES RISK NEW FUND RISK NON-U.S. SECURITIES RISK OPERATIONAL RISK PREFERRED SECURITIES RISK SMALL-CAPITALIZATION COMPANIES RISK STRUCTURAL ETF RISKS SWAP AGREEMENTS RISK VARIABLE INTEREST ENTITY RISK