最新报道:Robinhood's stock surged over 6% on Friday after its inclusion in the S&P 500 index, driven by expected buying from index funds and ETFs. The fintech firm, with a market cap of $88.5 billion and 25 million users, offers trading in stocks, ETFs, options, and cryptocurrencies. Its addition, which surprised some due to MicroStrategy's exclusion, highlights its expanding influence and diversification into sports betting markets.