The Markets Voted Twice in 24 Hours. The Second Ballot Was a Thousand-Point Down Ballot.
Desk: Economic, Business & Financial, Markets & Investing
By Dakota Jones
ANCHOR: Wall Street spent Wednesday celebrating the election. On Thursday, it read the fine print, or decided it could sell first and ask what the legislation says later.
One day after a post-election rally sent the Dow up 1,569 points, investors delivered a very different verdict. The Nasdaq Composite dropped 5.5% and entered correction territory. The S&P 500 fell 4.4%. The Dow lost roughly 1,833 points, or 3.4%.
That was the worst single-day performance for all three indexes since April 4, 2025, the tariff-shock selloff. The market’s second ballot was not subtle.
What you’ll learn
This guide explains why election results that initially lifted stocks were followed by a sharp reversal; what investors fear a Democratic congressional sweep could mean for data-center construction and AI spending; and how to read the selloff without mistaking a market worry for a law already passed.
For more coverage, visit LD3 Productions’ Economic, Business & Financial desk.
Thursday’s scorecard: the AI trade took the hit
The selling centered on technology and AI-linked shares. The “Magnificent Seven”, the largest technology companies commonly grouped under that label, lost more than $1 trillion in aggregate market value in a day.
Nvidia led the losses. Its shares fell more than 9%, knocking more than $440 billion off its market value and turning the stock negative for the year.
The shock reached well beyond a handful of high-profile companies:
| Thursday measure | Market move |
|---|---|
| Nasdaq Composite | Down 5.5%; entered correction territory |
| S&P 500 | Down 4.4% |
| Dow Jones Industrial Average | Down roughly 1,833 points, or 3.4% |
| Magnificent Seven | More than $1 trillion in combined market value lost |
| Nvidia | Down more than 9%; market value fell more than $440 billion |
| CBOE Volatility Index (VIX) | Up 11.57 points |
| S&P 500 information technology sector | Down 7.30% |
Figures are reported by CNBC and BBC News. A correction is commonly defined as a decline of at least 10% from a recent peak.
The VIX, often described as Wall Street’s “fear gauge” because it reflects expected market volatility, had its biggest point gain since April 4, 2025. All 11 S&P 500 sectors finished lower. Information technology posted its worst day since March 16, 2020. That is not a routine tech wobble. That is a very large market rethink.
Wednesday cheered. Thursday worried about the buildout.
The election rally and the selloff told two different stories about the same result.
On Wednesday, investors rewarded stocks seen as benefiting from lower-income consumers and hospital operators. The Dow surged. Markets appeared to welcome the election outcome, or at least the immediate version of it.
Then came Thursday. Investors focused on whether Democratic control of Congress could bring new scrutiny, restrictions, or delays for data-center construction. Those facilities are a physical foundation of the AI boom: they need land, power, equipment, and permits. If the buildout slows, investors worry, the demand outlook for chips and related businesses could change too.
That is the concern driving the trade, not confirmation that a specific national restriction has been enacted. Markets were pricing in a possibility, not reporting a finished policy. There is a difference. Thursday’s tape did not seem especially interested in taking its time to explain it.
Add existing worries that AI-related shares had become expensive, and investors had a reason to reassess. The market had spent Wednesday cheering election headlines. By Thursday, it was trading the potential consequences for capital spending.
Chips felt the damage first, and over several days
Semiconductor shares were among the hardest hit. The iShares Semiconductor ETF and the Philadelphia Semiconductor Index sank roughly 9% to 12% or more on Thursday. AMD fell more than 14% that day.
The five-day losses showed how much ground the group had already surrendered:
- AMD: down nearly 17%
- Micron: down more than 20%
- Intel: down more than 18%
- Nvidia: down more than 10%
These moves do not prove the AI buildout is stopping. They do show that investors are reassessing how quickly it can grow, how much it will cost, and whether every company connected to the story will benefit as expected.
That is a less glamorous conversation than “AI changes everything.” It is also the one markets eventually have to price.
Musk’s political bet met a Texas-sized complication
The election-linked unease showed up in companies beyond the chip trade. SpaceX shares fell more than 7%, while Tesla fell more than 9%, according to BBC News.
Elon Musk had spent nearly $450 million backing Republican campaigns, including at least $45 million supporting Ken Paxton’s Texas Senate race. Texas went blue anyway. The political spending is part of the backdrop; it does not, by itself, explain every move in either company’s shares.
Texas matters to this story because it is central to data-center development, and the prospect of tougher scrutiny there has sharpened investor concerns. The underlying question is practical: how much new infrastructure can be built, where, and under what rules? Investors are trying to price the answers before the rules are fully clear. Markets do enjoy getting ahead of themselves. Sometimes they even arrive before the question.
Tech executives discovered that a tweet is not community engagement
The election results also exposed a communications problem for the AI industry. Several tech leaders acknowledged that companies need to do more than announce that data centers and AI will be good for communities. They need to make the case in the communities where those projects are proposed.
OpenAI president Greg Brockman said at the Wall Street Journal Tech conference that companies “can’t just tweet and say: ‘This is going to be good.’ You need to be in those communities.”
Meta’s Dina Powell McCormick made a similar point, saying the industry needed to “double and triple down on telling the story.”
Fair enough. A promise posted online is not the same thing as explaining the project to the people who live near it. Data centers raise local questions about construction, power, land use, and who benefits. If the industry wants broad support, it has to answer those questions directly, not treat public acceptance as an automatic feature of the AI product.
What should you take away from the reversal?
Thursday’s plunge is a warning about concentration and uncertainty, not a crystal ball. The sharpest losses landed in technology, but every S&P 500 sector fell. The selloff therefore reflected more than a single company’s results or one narrow policy announcement.
If you are following the story, keep these points in view:
- Separate policy risk from enacted policy. Investors are reacting to the possibility of restrictions and delays. That is not the same as a confirmed rule.
- Watch the infrastructure, not just the software. Data centers depend on construction, power, permits, and hardware. Those constraints can shape the AI investment story.
- Look at the time frame. Thursday’s declines were dramatic; the chipmakers’ five-day losses show the pressure had been building.
- Treat a rally and a reversal as evidence of uncertainty. One strong session does not settle how markets will interpret an election.
The Markets & Investing desk will continue tracking how policy expectations, infrastructure plans, and investor sentiment collide.
FAQ
Did the election directly cause Thursday’s selloff?
Investors cited the election outcome and possible tougher scrutiny of data-center development as reasons for concern. The selloff also came amid existing worries about AI stock valuations. That does not establish that election results alone caused every decline.
Did Congress pass a data-center restriction on Thursday?
The reported concern was about potential restrictions and a possible slowdown in construction. The cited coverage does not say that Congress passed a national data-center restriction that day.
What does “correction territory” mean?
It generally means an index has fallen at least 10% from a recent peak. CNBC reported that the Nasdaq entered correction territory.
Was Thursday’s drop limited to technology?
No. All 11 S&P 500 sectors closed lower. Technology suffered the steepest sector loss, but the retreat was broad.
Final Thoughts
Wednesday’s rally priced in optimism. Thursday’s selloff priced in uncertainty about what comes next. The market went from welcoming the election to worrying about data-center rules, AI spending, and stretched valuations in less than a day.
That is a fast reversal, but the central question is straightforward: Can the AI infrastructure boom keep expanding at the pace investors expected, and will communities and policymakers accept the buildout? The answer will take more than one trading session, and more than a confident tweet.
This article is for informational purposes and is not investment advice.