AI bubble fears return as Wall Street falls back from short-lived rally
1. S&P 500 fell 1.6% amid AI bubble fears after Nvidia's earnings-driven rally. 2. Nasdaq dropped 2.2%; Nvidia shares fell 3.2% despite beating expectations. 3. VIX rose 8%, signaling elevated market volatility and risk aversion. 4. Mixed jobs report supports Fed pause expectations, complicating market outlook.