U.S. Stocks Erase Post-Election Rally as Chipmakers Sell Off

U.S. stocks fell sharply on Thursday, November 5, 2026, wiping out the rally that followed the midterm elections. The S&P 500 dropped 3.2%, the Dow lost 1,200 points, and the Nasdaq entered correction territory, according to ABC7 New York. A correction is conventionally a decline of 10% or more from a recent high, the market's shorthand for a sizable drop. That label now applies to the Nasdaq.

Technology was the weakest sector in the S&P 500 that day, and the losses were concentrated in semiconductors, the chips that power computers, phones and data centers. Reuters reported that global stocks fell as well, weighed down by a sharp selloff in chip shares.

The move reversed the prior session. On Election Day, Tuesday, November 3, the S&P 500 snapped a three-day losing streak as chip stocks rose. The information technology sector was up 1.4% in afternoon trading, according to CNBC. Thursday's decline was the second day of the chipmaker selloff. Forbes reported that Nvidia, Micron, AMD, Intel, SanDisk, TSM, Qualcomm and Marvell all fell sharply.

For a broad index fund, the sector's weight in the S&P 500 is the channel through which a chip move reaches the headline index. Think of it as a basket where a few heavy items set the total.

The broader context here is that a 3.2% drop in the benchmark is not only a statement about semiconductors. It also reflects how much of the index now rides on a small group of AI-linked names.

Bloomberg reported that traders were assessing what a Democratic sweep in the midterm elections would mean for data centers. The question on the desk was narrower than the election result: what a change in political control means for the pace of data center construction, and therefore for demand for the chips and power equipment that construction requires. The selloff, by that account, suggests many investors were not willing to wait for that answer.

Bloom Energy shows how the data center trade has treated companies with strong reported numbers. On October 22, 2026, the company reported third-quarter revenue of $1,235.8 million, up 138.1%, and gross margin of 33.8%, up 453 basis points. A basis point is one-hundredth of a percentage point, so that margin gain equals 4.53 percentage points. Operating income was $225.4 million, and the company raised its full-year 2026 guidance. Bloom described the quarter as a record. Even so, Yahoo Finance reported that the company's stock was sold by Wall Street amid a sell-off in the AI data center trade.

On November 5, the same day as the broader selloff, NTT DATA and Bloom Energy announced an agreement for 900 megawatts of onsite power generation across multiple data center projects. An announced agreement is a commitment to supply, not a completed deployment. The scale is measured in megawatts, the unit of power a large campus draws.

In my view, the Bloom episode is the more useful signal. Strong earnings, expanding margins and a raised outlook did not protect the shares while the sector traded on the buildout as a whole. When a group is priced on its direction rather than on the results of its members, company-level fundamentals become secondary until that direction is clearer.

The practical question for savers is exposure. Anyone whose retirement account holds index funds has some stake in the semiconductor names that dragged the benchmark lower, whatever their view of the political outcome.

A caution about any read of a single session: Thursday's losses erased a post-election gain, but one day of trading does not establish a trend.