These S&P 500 Stocks Stood Out in Q3 2025: Western Digital, Warner Bros Discovery, Seagate, Corning, Teradyne

Investors can thank strong earnings, interest-rate cuts and marketwide optimism for an unseasonably strong September and a S&P 500 mere points from record highs. But before investors stroll into the historically strong fourth quarter, it's worth taking account of the stocks that made the index's banner performance possible. You might thank the megacaps, which are dominating the market narrative: players like Nvidia  (NVDA) , Alphabet  (GOOGL)  and Meta  (META) . Credit to these firms: They're among the l ...