Robinhood, Strategy Snubbed from S&P 500: Shares Fall While Interactive Brokers Gains

Contrary to expectations, online trading platform Robinhood and software firm Strategy were left off the S&P 500 index. This omission caused a slight decline in their stock prices, while investment bank Interactive Brokers benefited from its inclusion in the benchmark, experiencing a significant share price increase. The decision was driven by factors such as market listing requirements and overall liquidity.