#ECHO
- Stocks at midday: Supermicro (SMCI) leads S&P 500 gainers, +9.04% (October 21, 2026)
Major U.S. equity benchmarks traded higher during Wednesday midday trading, led by the Nasdaq's +0.99% advance to 26,686.85. The S&P 500 rose +0.48% to 7,749.35 with market…