The 10-year U.S. Treasury yield rose as high as 5.27% on the 28th, its highest level since June 2007, while the S&P 500 was down about 1.5% from its mid-August peak. Investors are divided between a growth-led explanation, supported by strong job data, rising earnings forecasts and enthusiasm for artificial intelligence investment, and concerns that a narrow group of large-cap stocks is concealing broader weakness. Nvidia Chief Executive Jensen Huang said AI lacks self-awareness and should be controlled through limited permissions and monitoring, while emphasizing cooperation with Samsung, SK, LG and Hyundai. SpaceX’s Starship reached orbit and deployed 26 Starlink V3 satellites, although one engine failed and the mission ended earlier than planned. Separately, OpenAI canceled its planned GPT-6.1 Astra release after it failed alignment evaluations (tests of behavior against human intent), underscoring a shift in AI competition from performance toward controllability.