Overview

• Robinhood, AppLovin, and Emcor will be added to the S&P 500 before the open on Sept. 22, replacing MarketAxess, Caesars, and Enphase, which shift to the S&P SmallCap 600.
• Robinhood shares rose roughly 7% premarket and were up as much as about 14% intraday, while AppLovin gained around 10% to 11% and Emcor advanced about 2%.
• Index additions typically prompt buying by funds that track the S&P 500, expanding institutional ownership and liquidity for newly included stocks.
• The inclusion caps a sharp rebound for Robinhood, with reporting highlighting stronger trading activity, crypto-driven growth, and a swing to profitability; the SEC earlier closed a crypto‑listing probe without enforcement.
• Recent product news includes the U.K. launch of Robinhood’s Cortex AI Digests feature, as EU regulatory voices caution that tokenized stock offerings could confuse investors.