This man wiped $600 billion off Nvidia’s valuation by marrying quant trading with AI. - MarketWatch
1. DeepSeek's app leads downloads in Apple's App Store, impacting AAPL positively. 2. Nvidia majors fluctuations raise concerns about AI sector dynamics affecting AAPL. 3. U.S. tech spending on AI expected to reach $1 trillion, boosting AAPL prospects.