1. SPYT and XDTE ETFs both implement 0DTE call strategies on the S&P 500, with SPYT using call spreads and XDTE using slightly OTM calls. 2. XDTE has outperformed SPYT since March 2024, offering superior total returns and higher distribution yields. 3. Despite XDTE's superior strategy, caution is advised due to extended market valuations, with SPYT rated as a hold.