The U.S. stock market’s Wednesday session is a historic one, as both the S&P 500 and the Nasdaq 100 indices closed at record high levels, driven by increased investor confidence in artificial intelligence-driven growth expanding from the tech sector to the broader market. The S&P 500 Index, as tracked by the SPDR S&P 500 ETF Trust (NYSE:SPY), closed the session 5,354 points, surpassing the latest all-time high close hit of 5,321 points hit on May 21. The tech-heavy Nasdaq 100 Index, as monitored through the Invesco QQQ Trust (NASDAQ:QQQ), closed at a record high of 19,035 points, up 2% for day, notching its best daily performance in a month. Chart: Nasdaq 100 Hits Record Highs, Up 35% Since October 2023 Lows