Biggest Stock Losers Today in the U.S. (Dec. 10, 2025): DYN, SLM, KTB, WAY and More Slide as Fed Decision Looms

U.S. stocks are trading in a holding pattern on Wednesday, December 10, 2025, as Wall Street waits for the Federal Reserve’s final interest‑rate decision of the year. Index moves are modest, but beneath the surface a cluster of mid‑cap names is posting double‑digit percentage declines, led by Dyne Therapeutics, SLM Corp, Kontoor Brands and Waystar Holding. Investing.com+1