Wall Street Reprices the AI Promise

Wall Street’s post-election relief gave way to a sharp AI sell-off last night, as investors weighed construction delays, borrowing costs and political scrutiny. With chipmakers leading the losses, the question is becoming more urgent: which businesses can afford to wait for the promised returns?

Wall Street Reprices the AI Promise

Wall Street’s enthusiasm for divided government lasted barely a session. Last night’s selling erased Wednesday’s relief rally as investors reconsidered what the midterm results could mean for the construction programme underpinning America’s AI expansion.

By the end of the session last night, the Nasdaq Composite had fallen 5.5% to 24,315, the S&P 500 4.4% to 7,353.73, and the Dow 3.4% to 51,523.06. For the S&P, it was the sharpest daily decline since the April 2025 tariff shock.

Companies relying on continued infrastructure spending took some of the heaviest losses. Nvidia dropped 9.3%, AMD 17.3% and electricity-equipment supplier GE Vernova 7.5%. The Nasdaq finished 11.9% below its record, confirming a correction. Fears of construction restrictions added to existing concerns about borrowing costs and investment returns.

Investors appear to be reassessing the timetable as much as the technology. A delayed data centre means deferred chip purchases, postponed electricity demand and a longer wait for revenue. For businesses borrowing to finance expansion, that delay changes the calculation: interest remains payable while expected income moves further away.

Democratic victories do not themselves cancel projects or rewrite federal policy. The incoming Congress assumes authority in January. Markets, however, do not wait for legislation before adjusting expectations, particularly when local opposition is already complicating development.

A slower buildout could curb excess and improve capital discipline, as Monica Guerra argued in the supplied Bloomberg interview. Last night’s reaction illustrates how painful that adjustment could be for companies whose valuations depend on uninterrupted expansion.

The investment question is becoming more concrete: which businesses can afford to wait?


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