S&P 500 Gains & Losses Today: UPS Stock Falls; AI Demand Boosts Corning Earnings
1. Corning (GLW) shares surged nearly 12% on better-than-expected earnings. 2. Increased demand for fiber optic cables fuels GLW's performance. 3. JPMorgan cites potential foldable iPhone as a positive for GLW. 4. S&P 500 fell 0.3% amid mixed earnings and trade concerns. 5. UPS and other stocks reported declines due to macroeconomic uncertainties.