The Dow Jones Industrial Average closed at a record high on Wednesday, August 5, 2026, even after retreating approximately 400 points from its intraday peak. Nvidia helped keep the Dow in positive territory, while weakness in shares of Alphabet, AMD, and other chipmakers limited gains and placed downward pressure on the broader market.

The S&P 500 and the Nasdaq Composite both came under pressure during the session as technology stocks dragged peers lower. Despite the Dow's record close, the pullback in semiconductor and large-cap tech names weighed on investor sentiment across the two other major US equity indices. The divergence partly reflects structural differences among the benchmarks: the Dow is a price-weighted index of 30 large-cap stocks, while the S&P 500 and Nasdaq Composite carry heavier weighting in technology and semiconductor companies, making them more sensitive to moves in that sector.

Nvidia, the graphics processing unit manufacturer whose shares have been closely watched as a barometer of artificial intelligence demand, provided support for the Dow Jones. Conversely, shares of Alphabet — the parent company of Google — and AMD were among the chip and tech stocks that kept broader gains in check. Semiconductor and AI-related equities have been among the most closely tracked segments of the market as investors assess the pace of enterprise AI spending and data-center buildout.

The session reflected a divergence within the technology sector, where select components buoyed the Dow even as selling pressure in semiconductors and related names pressured the S&P 500 and Nasdaq.

The Dow Jones Industrial Average, S&P 500, and Nasdaq Composite are the three primary benchmark indices tracked by investors to gauge the direction of US equity markets.