These Were the 5 Worst-Performing Stocks in the S&P 500 in September 2025 — and One's Decline Can Be Tied to President Trump
One of these stocks lost about a quarter of its value in a single month.
It’s fun to follow stocks that soared recently, and it can be sobering to see which ones have plunged — especially if you’re a shareholder. So here’s a look at the worst-performing stocks in the S&P 500 index of 500 of America’s biggest companies —