ソース:[1] When will MicroStrategy join the S&P 500? (Hint: not anytime soon) (https://www.thestreet.com/crypto/markets/can- ...)[2] Strategy's Exclusion From The S&P 500 in September 2025 Has Several Implications (https://vertexaisearch.cloud.google.com/groun ...)[3] Strategy (MSTR) Stock: Snubbed by S&P 500 as “Secret Committee” Blamed for Exclusion (https://vertexaisearch.cloud.google.com/groun ...)