Intel shares fell about 29% on Friday 30 October 2026, the chipmaker's worst single trading day since 1974, after a weaker-than-expected fourth-quarter forecast erased more than $100 billion from its market value in one session. The sell-off came despite third-quarter results that beat expectations, as investors focused instead on a slumping personal computer market, rising memory costs and the lingering cost of a fatal explosion at Intel's fabrication plant in Israel (Business Insider) (The American Star News).

Shares closed Thursday at $92.07 and opened Friday at $68.35, touching an intraday low of $64.25 — a fall of more than 30% at its deepest point — before finishing the session down roughly 29%. By one widely cited measure, it was the stock's worst day since 5 July 1974, when Intel fell nearly 30%, and comfortably worse than its previous modern low, a 26.1% drop in August 2024.

The scale of the fall was all the more striking because Intel entered Friday up about 150% for the year. Even after the crash, the shares remained more than 70% higher than where they began 2026 — a reminder of how far, and how fast, the stock had run ahead of its fundamentals.

A forecast that missed by a wide margin

The trigger was Intel's guidance, issued late on Thursday after the market closed. The company said it expects fourth-quarter revenue of between $15 billion and $16 billion, with adjusted earnings of 25 cents a share. Analysts had forecast roughly $17.1 billion in revenue and 43 cents a share, according to LSEG data — a miss wide enough to reset the entire investment case in a single evening.

The quarter Intel had just reported was, by contrast, genuinely good. Third-quarter revenue rose 21% to $16.5 billion, with adjusted earnings of 52 cents a share, both ahead of the company's own guidance. But markets trade on the future, not the past, and Intel's outlook described a future considerably darker than investors had priced in.

Chief financial officer David Zinsner told analysts the personal computer market, Intel's largest business, will stay weak "at least through the first half of next year." Intel now expects industry PC unit shipments to fall about 12% this year and another 10% in 2027, a steeper decline than the industry had hoped for. Global PC shipments had already declined 4% year on year in the second quarter, according to Counterpoint Research, and Intel's own PC chip revenue slid 9% from the prior quarter to $8.1 billion.

The Kiryat Gat explosion

The forecast also carries the cost of an explosion at Intel's Kiryat Gat fabrication plant in Israel on 14 October, which killed two workers and seriously injured a third. Chief executive Lip-Bu Tan, who took over in March 2025 with a mandate to revive a company that missed the early years of the artificial intelligence boom, called the explosion an "unfortunate and tragic accident" that caused an "extended shutdown" at the plant, hitting shipments of 10-nanometre chips. Zinsner said the disruption would cost the company about $600 million in lost revenue over two quarters.

The human tragedy aside, the incident exposed a manufacturing fragility that investors had not fully priced in. Intel is spending heavily to rebuild its fabrication capacity — capital expenditure of about $20 billion this year, rising sharply next year — and the company told investors that 2027 is unlikely to produce positive free cash flow. For a turnaround story built on manufacturing execution, a months-long plant shutdown is precisely the wrong kind of news.

Analysts pile in, and the government stake shrinks

The analyst reaction was swift and unusually blunt. Bank of America downgraded Intel to neutral and cut its price target to $100 from $145. D.A. Davidson cut its rating to neutral from buy in a note titled "Not fixed yet," arguing that it was "hard to justify the current multiple when weakness is so significant." Roth moved to neutral with a $70 target, Cantor trimmed its target to $90 and Bernstein to $75. Bernstein's Stacy Rasgon summed up the outlook in one word: "terrible."

The sell-off also landed directly on the US taxpayer. The US government owns a stake of nearly 10% in Intel, taken more than a year ago as part of the Trump administration's industrial policy push, and the value of that holding fell by roughly $12 billion on Friday. The stake remains profitable overall, given the stock's run this year, but the day was an unwelcome demonstration of how quickly a government equity position can move.

The wider market felt the shock too. Intel's plunge dragged the S&P 500 to its worst day since June, and it arrived in a month already marked by investor anxiety about AI spending — a theme covered in our report on the Nasdaq's worst month on AI spending fears. The contrast with the rest of the chip sector is instructive: while some rivals have ridden the AI boom to record results, as in our coverage of Samsung's record quarterly profit, Intel's fortunes remain tied to the PC market it once dominated — and to the factories it is still rebuilding.

What comes next for the turnaround

For Tan, the crash is the first serious test of a turnaround that, until Friday, had been running ahead of schedule in the eyes of the market. The shares' 150% rise this year was fuelled in part by demand for central processors, which are becoming critical to agentic AI workloads, and by the government's endorsement. Friday's reset suggests investors now want proof, not promise: proof that PC demand stabilises, that the Kiryat Gat plant returns to full production, and that the heavy capital spending programme eventually converts into cash flow.

Intel says it will add server capacity in 2027 to close the gap with rivals in the data-centre market, where the AI boom is concentrated. But with the company guiding to no positive free cash flow that year, the market will judge the plan on execution milestones rather than on ambition. The chip sector has already shown this year how quickly sentiment can turn, as we reported when semiconductor stocks retreated on AI revenue questions.

Friday's session will be remembered as a historic one for Intel — its worst in half a century. Whether it is remembered as a buying opportunity or as the moment the turnaround story broke depends on what the next two quarters deliver. For now, the market has delivered its verdict in the bluntest possible terms.

Key takeaways

  • Intel shares fell about 29% on Friday 30 October 2026, their worst single day since 1974, erasing more than $100 billion in market value.
  • Fourth-quarter guidance of $15–16 billion in revenue and 25 cents a share fell far short of analyst expectations of about $17.1 billion and 43 cents.
  • The weak outlook reflects a slumping PC market, rising memory costs and a $600 million revenue hit from the Kiryat Gat plant explosion, which killed two workers.
  • The US government's nearly 10% stake in Intel lost roughly $12 billion in value in a single session.
  • Multiple analysts downgraded the stock, with Bank of America cutting its price target to $100 from $145.

Frequently Asked Questions

Why did Intel shares fall 29%?

Intel issued fourth-quarter guidance well below Wall Street expectations — revenue of $15–16 billion against about $17.1 billion forecast, and adjusted earnings of 25 cents a share against 43 cents expected. The outlook cited continued weakness in the PC market, rising memory costs and the disruption from an explosion at its Kiryat Gat plant in Israel.

Is this Intel's worst day ever?

By most measures it is the worst since 1974. Yahoo Finance data puts the previous worst day at 5 July 1974, when Intel fell nearly 30%, and Friday's intraday low of about 30.5% was deeper than that. The closing fall of roughly 29% is roughly tied with, or just short of, the 1974 plunge, and worse than the 26.1% drop of August 2024.

How did the US government's Intel stake fare?

The US government owns nearly 10% of Intel, and the value of that holding fell by approximately $12 billion on Friday. The stake remains profitable overall because the shares had risen about 150% during 2026 before the crash.

What happened at Intel's Kiryat Gat plant?

An explosion at the fabrication plant in Israel on 14 October killed two workers and seriously injured a third, causing an extended shutdown that hit shipments of 10-nanometre chips. Intel expects the disruption to cost about $600 million in lost revenue over two quarters.

What is Intel's outlook for the PC market?

Intel expects industry PC unit shipments to decline about 12% in 2026 and another 10% in 2027. Chief financial officer David Zinsner said the PC slowdown would continue "at least through the first half of next year."