US technology stocks suffered a steep sell-off on Thursday, November 5, after sweeping Democratic gains in the US midterm elections prompted investors to reassess the future of artificial-intelligence infrastructure. The Nasdaq Composite fell 5.5%, while the Nasdaq-100 dropped 6.4%, erasing about $2.5 trillion in market value, according to Reuters.
The losses were concentrated in companies tied to the AI build-out. The Philadelphia Semiconductor Index fell about 12%, while Nvidia declined roughly 9% and AMD dropped 17%. The scale of the decline reflected concern that election results could lead to tighter scrutiny of data-centre projects, particularly in states where local opposition has become a major political issue.
Investors are not questioning only the demand for AI chips and software. They are also reassessing whether companies can secure the electricity, water, land, permits and financing required to build the facilities behind the industry’s expansion. Data centres consume large amounts of power and water, and proposed projects have faced resistance from communities concerned about utility costs, environmental pressure and the public incentives offered to developers.
The election has not created a nationwide ban on data-centre construction. Instead, it has increased the political and regulatory risk surrounding projects that depend on state and local approvals. Reuters reported that Democratic victories in Congress and state capitals could slow construction timelines and make investors less certain about when planned facilities will become operational.
The market reaction also reflects broader doubts about the cost of the AI boom. Companies have committed heavily to chips, power capacity and computing infrastructure, but investors remain focused on whether future revenue will justify that spending. Higher borrowing costs could make large projects more expensive, while permitting delays could postpone the returns expected from them.
The Nasdaq Composite is now nearly 12% below its October 6 record close, placing it in correction territory. The next test for the sector will come from corporate earnings, financing conditions and the treatment of proposed data-centre projects by newly empowered state and federal policymakers.
