S&P 500 Gains and Losses Today: AMD Stock Pops on OpenAI Deal; AppLovin Plunges
1. AMD shares surged after announcing AI partnership with OpenAI. 2. The deal promises long-term chip sales and potential equity stake for OpenAI. 3. AMD outperformed all S&P 500 stocks in a bullish trading day. 4. Other AI infrastructure stocks also benefited from AMD's news. 5. OpenAI's collaboration underscores AMD's role in the AI sector.