[NVIDIA Adds $150 Billion Buyback, AMD Spends $8.2 Billion to Acquire World Labs] Deep Tide TechFlow reports that on September 29, according to Jinshi Data, the market yesterday and early this morning focused on several major macroeconomic and industry developments. Domestically, the State Council emphasized the need to strengthen counter-cyclical adjustments in macroeconomic policies. Data from the National Bureau of Statistics showed that from January to August 2026, the profits of industrial enterprises above designated size nationwide increased by 15.7% year-on-year. The tech and corporate sectors saw a flurry of activity. NVIDIA announced an additional $150 billion stock buyback authorization, raising the total to $235 billion. AMD officially spent $8.2 billion to acquire World Labs, with Li Fei-Fei set to become Chief Scientist. Additionally, OpenAI delayed the release of GPT-6.1 Astra due to security concerns. In terms of funds and assets, overnight U.S. Treasury yields continued to climb, with the 2-year Treasury nearing the 5% threshold. Spot gold fell over 4%, while silver plunged 5.6%. In the Middle East, Trump stated that the U.S. is in dialogue with Iran, and Saudi Arabia's East-West pipeline has resumed oil exports.