ソース:[1] SPYT: 20% Yields And Limits Of Option 'Income' (https://seekingalpha.com/article/4820648-spyt ...)[2] SPYT: 20% Yields And Limits Of Option "Income" - Seeking Alpha (https://seekingalpha.com/article/4635000-spyt ...)[3] JPMorgan Calls S&P 500's Rejection of Strategy a “Blow to Crypto Treasuries” - ForkLog (https://vertexaisearch.cloud.google.com/groun ...)