Yahoo Financeยท2025-09-16 16:50Group 1 - Warner Bros. Discovery shares fell after being downgraded by TD Cowan due to concerns that potential gains from a sale to Paramount Skydance could be lost if the deal does not materialize [1][2][5] - The S&P 500 and Nasdaq experienced declines from record highs as the Federal Reserve's two-day meeting commenced, with Warner Bros. Discovery being the worst-performing stock in the S&P 500 [2][5] - Dave & Buster's Entertainment shares plunged after missing profit and sales estimates, with comparable store sales declining and warnings about inflation and tariffs affecting business [3][5] Group 2 - Novo Nordisk shares rose following positive results from a Phase 3 trial of a new weight-loss drug that operates differently from traditional GLP-1 inhibitors [4] - Steel Dynamics shares advanced after providing a better-than-expected outlook on performance across its units [5] - Rocket Lab shares declined as the company announced agreements to sell $750 million in stock to raise cash [3]