【Analysis: The failure of Robinhood and Strategy to be included in the S&P 500 index led to a drop in stock prices】Golden Finance reported that stocks of trading platform Robinhood Markets and Bitcoin treasury company Strategy fell in after-hours trading against the backdrop of an overall market decline on Monday, as they were not included in the S&P 500 index. For a long time, Wall Street has expected Robinhood to be included in the S&P 500 index, and Strategy recently qualified for inclusion due to the increase in the value of its Bitcoin holdings. Robinhood (HOOD) saw its stock price drop 1.26% at Monday's close, followed by an additional 0.5% decline in after-hours trading, reaching $107.40. Strategy (MSTR) also experienced a drop in stock price on Monday, closing down 4.17%, and further declining 0.6% in after-hours trading to $341.