NVDA is trading at 3.68% down now at $173.99 after a sharp post-earnings reversal and renewed concerns about AI stock valuations. Despite reporting robust quarterly results and issuing an upbeat sales forecast, Nvidia shares fell as investors questioned whether the AI rally is sustainable, with CEO Jensen Huang's reassurances failing to stem the decline. The broader tech sector is also under pressure, with the NASDAQ closing at its lowest since September 11 and other major AI stocks dropping. Fading hopes for a Federal Reserve rate cut and sector-wide profit-taking are amplifying the sell-off.