Finance Yahoo Finance Live: S&P 500 and Nasdaq sink as OpenAI-linked stocks falter | Apr. 28, 2026 2 days ago Financenews yahoofinance #livestockmarket #stockmarketnews US stocks diverged on Tuesday as OpenAI (OPAI.PVT) doubts weighed on … Post navigation Previous 2026 Spring Economic Outlook: Carney government bullish despite global uncertainty posing "risks"Next 9 Most Popular Investment Portfolio Strategies