Carvana, CRH and Comfort Systems USA Join the S&P 500: What the December 2025 Rebalance Means for Investors
On December 6, 2025, investors are digesting a major shake-up to the world’s most-watched stock index. After the closing bell on Friday, December 5, S&P Dow Jones Indices announced that Carvana Co. (CVNA), CRH plc (CRH) and Comfort Systems USA (FIX) will be added to the S&P 500 as part of its quarterly rebalance, effective before the market opens on Monday, December 22, 2025.News Release Archive+1 The move caps a dramatic comeback story for online auto retailer Carvana, recognizes record profits at building-materials giant CRH, and rewards rapid growth at mechanical and electrical contractor Comfort Systems. All three stocks jumped