AI Chip Rout Hits Seoul and Wall Street as Nasdaq Nears Correction
The global artificial-intelligence trade cracked on Thursday, November 5, as semiconductor shares plunged from Seoul to New York and forced investors to confront the costs behind the industry’s spectacular expansion. South Korea’s Kospi closed 5.3 percent lower. By late morning in New York, the Nasdaq Composite had fallen roughly 5 percent and approached a formal correction from its record high.
The selloff spread far beyond one disappointing earnings report. Qualcomm sank after its smartphone-chip sales missed expectations. Nvidia, Advanced Micro Devices and data-center specialist CoreWeave all suffered sharp losses. The Philadelphia Semiconductor Index fell about 11 percent, its worst slide since the pandemic panic of March 2020, while the broader S&P 500 dropped more than 3 percent.
Those American figures remained intraday readings when this article was published. The direction, however, was unmistakable. Investors were unloading the companies that built the market’s most crowded and expensive wager.
Photo: Narubaru7 / CC BY 4.0. Licensed image; archival photograph.
Asia had already delivered the first verdict. South Korea’s Kospi finished down 5.28 percent at 5,383.80, while Japan’s Nikkei lost 1.8 percent. European stocks also weakened, although less dramatically. The decline turned a U.S. technology correction into an international market event because the AI supply chain runs through Korean memory producers, Taiwanese fabrication plants, American chip designers and enormous data-center projects financed across global capital markets.
Weak corporate results lit the match, but politics supplied more fuel. Democratic victories in the U.S. midterm elections raised the prospect that Congress and local governments could scrutinize data-center construction, electricity demand and water use more aggressively. Ballot measures opposing or limiting new facilities strengthened that possibility. Markets did not prove that any one policy caused the fall; they priced the risk that the AI buildout may no longer receive unlimited political permission.
Photo: Coolcaesar / CC BY-SA 4.0. Licensed image; archival photograph.
“Disappointing earnings and the Dem sweep potentially slowing the AI buildout are pressing sentiment,” Nationwide’s Mark Hackett told Reuters.
That sentence captures the immediate mood, but the deeper problem predates the election. AI companies have promised extraordinary future productivity while spending extraordinary sums in the present. They require chips, power plants, transmission lines, cooling water and cheap credit. Higher borrowing costs weaken that model, especially for firms whose capital spending rises faster than free cash flow.
For months, investors treated every new data center as evidence of inevitable demand. Thursday’s rout reversed the logic. Markets began asking whether demand can justify the construction bill, whether local communities will accept the strain on grids and water systems, and whether governments will continue socializing infrastructure costs while private firms capture the gains.
The flight from technology also moved money into defensive assets. Gold climbed above $4,100 an ounce while oil rose roughly 2.6 percent. U.S. Treasury yields eased only slightly, offering little relief to highly valued growth companies.
The breadth of that rotation mattered: investors were not simply choosing one chipmaker over another, but reducing exposure to the entire growth narrative.
This does not prove that the AI boom has ended. Semiconductor demand remains real, and the largest firms still command immense cash reserves and political influence. But Thursday punctured the claim that the sector can expand without financial, material or democratic limits.
The decisive question now is not whether artificial intelligence has uses. It is who pays for the electricity, water, debt and public infrastructure behind it—and who owns the rewards. The global selloff showed how quickly that unresolved political economy can become a market crisis.
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