AI Stock Rebound Drives Nasdaq to Biggest One-Day Gain in Six Weeks

Key Facts

Following weeks of anticipation and volatility linked to inflation data, US markets witnessed a significant positive shift as momentum returned to the technology sector. The S&P 500 and Nasdaq composite posted their biggest one-day gains in six weeks as investors rotated back into AI-related stocks. According to reports, this rebound effectively snapped the market out of its recent gloom caused by persistent inflation concerns.

This robust performance reflects a restoration of confidence in high-growth sectors despite ongoing macroeconomic pressures. Based on recent data, these gains follow a period of sharp volatility triggered by US Consumer Price Index (CPI) figures, which stood at 3.4% year-on-year earlier this month per market data. The surge in equity indices has helped mitigate the tensions previously fueled by elevated inflation expectations.

The NDAQ stock stood at $88.76 (at close September 16, 2026), having reached a day high of $89.68. Traders are currently monitoring resistance levels near the recent daily peak, while markets look for new catalysts following the release of inflation data from Canada and India earlier this week.