The S&P 500 keeps climbing on days when stocks broadly struggle. Here’s what’s going on.
Reported by MarketWatch · marketwatch.com · August 29, 2026
Investors’ intense focus on AI is at times adding to the might of a small club of Big Tech stocks with mega market values to potentially make or break a single trading session for the S&P 500.
What the tape says
What to watch: AI infrastructure spend continues to concentrate in compute, memory, and power equipment.
Market reaction today: $^GSPC -0.38%
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