Robinhood (HOOD) stock jumped more than 15% on Monday on the news that it will soon join the S&P 500, as quoted on Yahoo Finance. The move strengthened Robinhood’s position among the largest publicly traded companies in the United States. Robinhood shares have outperformed the broader industry over the past year. HOOD stock has skyrocketed about 519% over the past year.Strong Earnings PerformanceIn late July, Robinhood Markets, Inc. reported second-quarter 2025 earnings of $0.42 per share, beating the Zacks ...