S&P Dow Jones Indices welcome new members to the S&P 500, S&P MidCap 400, and S&P SmallCap 600 Indexes in December 2025. Carvana, Comfort Systems USA, and CRH are among the companies added. Regular rebalancing allows for market-driven optimization of index funds, granting investors a managed portfolio. Companies must meet specific criteria to join the S&P 500 and face removal if they consistently underperform.

United States Steel’s removal from the S&P 500 in 2013 exemplifies the index’s evolution. Additions like Carvana demonstrate companies’ growth and market performance. Regular rebalancing ensures the index remains dynamic and optimized for performance. The S&P 500 tracks American economic growth and has delivered consistent returns over many decades, attracting praise from industry leaders.

In September 2025, AppLovin, Robinhood Markets, and Emcor Group joined the S&P 500, while Caesars Entertainment, Enphase Energy, and MarketAxess Holdings were removed. Regular rebalancing ensures the S&P 500 remains relevant and optimizes performance. Uber Technologies replaced Charter Communications in the S&P 100, showcasing the index’s flexibility and growth alongside the American economy.

Read more at Yahoo Finance: S&P 500, MidCap 400, and SmallCap 600 Welcome New Members as Indexes Rebalance for 2026