AI and semiconductor stock markets declined in China while major US AI names helped keep the S&P 500 near its all-time high
Benchmark result Provisional 45% confidence first seen
Chinese AI- and chip-related equities tracked by the STAR 50 index fell sharply, losing around 40% from a July peak and wiping out roughly $480 billion in market value. In the US, despite weakness across most S&P 500 constituents, gains in large AI-related companies like Nvidia and Broadcom helped the S&P 500 remain close to its all-time high.