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TL;DR
The Nasdaq Composite dropped 5.52% on Nov. 5, its sharpest one-day fall since April 2025, while the Nasdaq-100 fell 6.36%. Investors weighed whether election results could bring more oversight, higher costs or delays for AI data center projects; no new restrictions have been enacted, and the policy impact remains uncertain.
The Nasdaq Composite fell 5.52% on Thursday, Nov. 5, closing at 24,315 after losing 1,421.51 points, as investors weighed whether U.S. election results could make it harder or more expensive to build AI data centers. The Nasdaq-100 dropped 6.36%, and Reuters estimated that the fall erased about $2.5 trillion in market value from that index’s 100 companies. No new restrictions on data center construction have been enacted; the immediate concern is that political and regulatory changes could affect future projects.
The Composite’s decline was its largest one-day fall since April 4, 2025, when it fell 5.82% during a market shock over tariffs, according to the index figures cited by ThorstenMeyerAI.com. Nasdaq data put Thursday’s closing level at 24,315.00. The Nasdaq-100 closed at 26,629.81, down 1,807.36 points. The reported $2.5 trillion loss applies to the Nasdaq-100, not to every stock listed on Nasdaq.
Technology and infrastructure-related shares bore some of the sharpest losses. The PHLX Semiconductor index fell 12.25%. Reuters reported Nvidia shares down 9% and AMD down 17%, while several data center operators fell more than 14%. Amazon and Alphabet each fell 2.2%, and Microsoft lost 3.6%, according to Reuters. The VIX, a measure of expected market volatility, recorded its largest one-day increase since December 2024, Reuters reported.
The Composite ended 11.9% below its Oct. 6 record, putting it in correction territory, commonly defined as a decline of at least 10% from a recent peak. The source account says Thursday’s market move followed a rise of 1.44% on Wednesday, Nov. 4. Some data center operators and power companies had already fallen that day, even as Amazon and Microsoft rose about 6% during the session, Reuters reported.
Infographic 01 · The day in numbers
The Nasdaq's worst day in 19 months
Chips and data center builders led the fall. The dollar figure in the headlines belongs to the Nasdaq-100, the 100 largest non-financial companies on the exchange.
Nasdaq Composite on Thursday, 5 November 2026: down 1,421.51 points to 24,315.00. The biggest one-day fall since 4 April 2025, 19 months earlier.
The five worst Composite days since March 2025
Daily change, closing values
Sources: Nasdaq Global Indexes (COMP, NDX, SOX closing data, retrieved 6 Nov 2026) · Reuters, 5 Nov 2026 (via The Straits Times). History checked back to 25 Mar 2025. Market value is Reuters’ calculation. Not investment advice.
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Election Results Put Data Center Plans in Focus
The market reaction reflects uncertainty about the cost and pace of AI infrastructure expansion, rather than evidence that demand for AI has collapsed. Data centers require large amounts of electricity, land and water, and often depend on utility connections, permits and tax arrangements. If local or state officials slow approvals, or require developers to cover more infrastructure costs, projects could take longer or become more expensive.
That possibility matters to investors because technology companies and infrastructure providers have committed substantial resources to expand computing capacity. A change in project economics could affect expected spending, construction schedules and revenues across data center operators, chipmakers, utilities and suppliers. But the market’s reaction is not proof that any particular project will be stopped or that companies’ AI investment plans will change.
A UBS estimate cited in the source material suggests about 30% of planned 2028 capacity additions could be at risk. That is an analyst estimate, not an enacted policy or confirmed forecast of cancellations. The scale of any financial effect will depend on future decisions and how companies respond.
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Why Data Center Policy Matters to Investors
The election results described by Reuters and The National include Democrats winning control of both chambers of Congress and several governorships. The incoming lawmakers are expected to chair committees with oversight of technology and commerce, which could mean more hearings or investigations, according to analysts quoted by Reuters. Congressional oversight is not the same as a new law, and the source material reports no federal measure imposing new data center limits.
The National reported that Democrats flipped five governorships: Texas, Georgia, Ohio, Iowa and Nevada. Its analysis of Cleanview project data said those states account for 37% of planned U.S. data center capacity, with Texas representing 22.8%. The incoming Texas governor has promised a moratorium on new data center construction and more community input, The National reported; incoming governors in Georgia and Ohio have pledged pauses on large projects. These are reported campaign commitments, not evidence that the pauses have taken effect.
State and local decisions can matter because governors appoint utility regulators and states shape incentives used to attract investment. Local voters also considered data center measures on Nov. 5. The source account says 46 of 47 measures across ten states went against the projects on unofficial results, including proposals for bans, size limits or pauses. Those local results were unofficial in the material provided and do not establish a nationwide policy change.
“The Nasdaq’s “deepest one-day drop since ‘Liberation Day’ in April 2025.””
— Reuters, describing Thursday’s market decline
Policy Changes Have Not Taken Effect
The source material establishes the index declines and reports election outcomes and campaign commitments, but it does not establish that new federal or state data center restrictions are in force. No new federal law has passed, and the president retains veto power. Analysts cited in the source material expect political gridlock could limit sweeping federal changes.
It remains unclear whether promised state pauses will be pursued, what their scope or timing would be, and how utility regulators or local authorities will respond. The reported local ballot outcomes were unofficial, and the source does not provide final certifications or the precise legal effect of each measure. The UBS capacity estimate is also an analyst assessment; it does not identify confirmed cancellations.
The immediate causes of a broad market selloff can be difficult to isolate. The reporting links investor concern to election results and AI infrastructure policy, but the supplied information does not show that politics alone caused every share-price move. Nor does it establish whether the decline will change technology companies’ spending plans or the long-term demand for AI services.
Watch State Pledges and Company Plans
The next developments to watch are whether incoming state administrations turn campaign promises into formal proposals, and whether legislatures, utility regulators or local governments take steps affecting permits, grid connections, water use or tax incentives. Final local ballot results and the text of any adopted measures will help clarify how much authority they carry and which projects they cover.
Investors will also look for company disclosures about construction timelines, capital spending and expected capacity. Further congressional hearings could indicate how lawmakers intend to examine AI infrastructure, but hearings alone would not change project rules. Until specific decisions emerge, the market’s concern remains a forecast about possible future costs and delays, not confirmation that the AI data center build-out has been halted.
Key Questions
How much did the Nasdaq fall on Nov. 5?
The Nasdaq Composite fell 5.52% to 24,315.00, a loss of 1,421.51 points. The Nasdaq-100 fell 6.36% to 26,629.81.
What does the reported $2.5 trillion loss refer to?
Reuters’ estimate refers to market value erased from the Nasdaq-100, which tracks 100 large non-financial companies listed on the exchange. It is not a figure for every Nasdaq-listed stock.
Have new rules for AI data centers been passed?
The supplied reporting says no new federal law has passed. State and local proposals or campaign commitments may affect future projects, but the material does not establish that the reported pauses are in force.
Why did investors connect the election to AI stocks?
Data center projects rely on permits, electricity access and, in some cases, tax incentives. Investors were concerned that possible oversight, higher costs or construction pauses could delay planned capacity, though the eventual policy effects remain uncertain.
Source: ThorstenMeyerAI.com
