S&P 500 tumbles 4.36 percent to 7,353.73 as AI selloff intensifies
Published on 11/05/2026 at 22:52 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWSAI selloff sends index lower
- The S&P 500 closed at 7,353.73 on November 5, 2026, down 4.36 percent from the previous session.
- Stocks linked to artificial-intelligence data centers led the retreat as investors reassessed spending, financing and regulatory risks.
- The decline erased the prior day's post-election rally and marked the index's sharpest fall since April 2025.
- The next trading session will be shaped by further developments around AI investment and data-center policy.
The S&P 500 ended Thursday, November 5, 2026, at 7,353.73 points, down 334.89 points or 4.36 percent from its November 4 close of 7,688.62. The index's U.S. trading session was already complete by the evening European slot, so the move represents a closing result rather than an intraday indication.
The closing figures were reported by the Associated Press. The prior-session level is also shown on the S&P Dow Jones Indices index page, which identifies the benchmark as a price-return index tracking large-cap U.S. equities.
AI-linked shares lead reversal
The selloff was concentrated in companies associated with the buildout of artificial-intelligence data centers. Investors were increasingly concerned that the cost of borrowing, the scale of planned infrastructure spending and uncertain returns could weaken the investment case for the sector. The Associated Press also cited rising worries about possible data-center moratoriums after Democratic victories in the U.S. midterm elections.
That pressure reversed the previous session's broad rally. On November 4, the S&P 500 had gained 1.58 percent as investors initially responded positively to the election outcome. Thursday's decline more than erased that advance. The technology-heavy Nasdaq Composite fell 5.52 percent, while the Dow Jones Industrial Average dropped 3.44 percent, underscoring the breadth of the risk reduction across U.S. equities.
Market implications
The index's 4.36 percent loss was its worst daily decline since the April 2025 tariff shock, according to the Associated Press. For investors, the session highlights how quickly expectations for AI-related capital expenditure can influence the wider benchmark, given the large weighting of technology and communications companies in the S&P 500. It does not by itself establish whether AI demand has structurally weakened, but it does show that valuation, financing and policy risks are again being priced aggressively.
Further market direction will depend on incoming company guidance, data-center policy signals and evidence about the profitability of current AI investments. More index coverage is available on the S&P 500 topic page.
