S&P 500 Profits Seen Up 29.1% on Micron

29.1% is the expected jump in S&P 500 third-quarter 2026 earnings — profits from 500 big U.S. firms — per FactSet cited by MarketWatch Sept. 27. Chipmaker Micron could pass Nvidia as the top contributor. Without Micron, growth would be 24%. For savers, so much hinges on Micron's Sept. 30 report.