Key Highlights

  • Intel (NASDAQ:INTC) crashed 28.58 percent on October 30, 2026, reported as its worst day since 1974, after guiding fourth-quarter Revenue to USD 15.0 billion to 16.0 billion and adjusted Earnings of USD 0.25 per share against 0.43 expected.
  • Dell Technologies (NYSE:DELL) fell about 9 to 10 percent the same day on the chipmaker's warning that the personal computer slowdown will last through at least the first half of 2027, a contagion move through the PC Supply chain.
  • HP (NYSE:HPQ) fell about 9 to 10 percent alongside Dell, as investors treated the chipmaker's guidance as a read-through to Demand for laptops and desktops, an inference that the company releases will need to confirm.
  • Advanced Micro Devices (NASDAQ:AMD) fell roughly 10 percent, with published figures ranging from 9.6 to 10.9 percent across timestamps, and reports on Tuesday, November 3, 2026 after the close with Options implying a move of 8.8 percent.

Intel (NASDAQ:INTC): The Worst Day Since 1974

Intel (NASDAQ:INTC) crashed 28.58 percent on October 30, 2026, a figure that another published account rounded to 28.6 percent, and the fall was reported as its worst day since 1974. The trigger was fourth-quarter guidance. Revenue was guided to USD 15.0 billion to 16.0 billion, adjusted Earnings Per Share to USD 0.25 against a 0.43 consensus, and gross Margin to 38.0 percent against 44.1 percent expected. Gross margin is the share of revenue left after the direct cost of making the product, so a drop of about 6.1 percentage points, simple arithmetic on the two numbers, means each dollar of sales now yields noticeably less profit. The chief financial officer said the personal computer slowdown would last through at least the first half of 2027. That comment matters because processors for PCs are the company's core market, and a weak outlook there leaves less room for new products to offset the decline. Risks include further guidance cuts, heavy Capital spending on factories while sales fall, and competitors taking share.

Dell Technologies (NYSE:DELL): Caught in the PC Slowdown

Dell Technologies (NYSE:DELL) fell about 9 to 10 percent on October 30, 2026 after the chipmaker's warning on personal computers. The link is an inference, not a statement by the company: PC makers buy processors from chip suppliers and sell finished machines, so a chipmaker that expects weak PC demand through at least the first half of 2027 implies fewer machines being ordered. The move shows how quickly a supplier's guidance can reprice its customers when investors fear that a slowdown spans the whole supply chain. Readers should note that the company has other businesses beyond PCs, so the share of its profit exposed to this slowdown was not confirmed in the material reviewed. The price drop also came on a day of broad technology weakness, when the Nasdaq Composite lost 2.9 percent and the chip index fell about 7.2 percent, which means part of the fall may reflect general risk reduction rather than company-specific fear. Watch for the next company release, inventory commentary and any change in the outlook for commercial PC refresh cycles. Risks include weaker corporate spending and pressure on margins.

HP (NYSE:HPQ): The Same Warning, a Similar Fall

HP (NYSE:HPQ) fell about 9 to 10 percent on October 30, 2026, moving in step with its PC rival after the same warning. The company sells personal computers and printers, so a slowdown in PC demand reaches its sales directly. As with its peer, the connection to Intel's guidance is an inference, since the company itself did not announce anything in the material reviewed. A processor supplier's outlook is useful because chips are ordered months before machines ship, so guidance can hint at what PC makers expect to sell. It does not capture everything, though. Pricing, mix between consumer and commercial machines, and the cost of memory and other components also shape profit, and the effect of any of these was not confirmed here. Both PC makers fell by a similar amount, which suggests investors treated the warning as an industry issue, not a company one. The next test is each company's own outlook and its comments on how long the slowdown could last. Risks include lower volumes, pricing pressure and weaker demand from businesses that delay upgrades.

Advanced Micro Devices (NASDAQ:AMD): A 10 Percent Drop Before Earnings

Advanced Micro Devices (NASDAQ:AMD) fell roughly 10 percent on October 30, 2026, with published figures ranging from 9.6 to 10.9 percent depending on the timestamp, as the Philadelphia Semiconductor Index lost about 7.2 percent in one session. Nvidia (NASDAQ:NVDA) fell 4.2 percent, which shows that the sell-off hit AI leaders as well as PC-exposed names. The company reports on Tuesday, November 3, 2026 after the close, and options imply a move of 8.8 percent as of October 30. An implied move is the size of the swing that option prices suggest, up or down, and it does not predict direction. Consensus figures were not confirmed for this article, so readers should check estimates for revenue, earnings and guidance before the release. The report arrives after a sharp reset in sentiment, which can cut both ways: a low bar can reward a solid report, but weak guidance after a crash can deepen losses. Risks include slower AI spending, competition from larger rivals and the PC cycle that Intel just warned about.

Where Things Stand

The USD 15.0 billion to 16.0 billion guide mattered because it came with a gross margin forecast of 38.0 percent and a warning that the PC slowdown would last through at least the first half of 2027, which put Intel (NASDAQ:INTC) in a category of its own with a fall of 28.58 percent. The PC makers followed because investors read the warning across the supply chain. Dell Technologies (NYSE:DELL) fell about 9 to 10 percent. HP (NYSE:HPQ) fell by a similar amount. Advanced Micro Devices (NASDAQ:AMD) fell about 10 percent in a wider chip rout. The evidence supports contagion, but the exposure of each company to PCs was not confirmed. The next catalyst is AMD on November 3, 2026. This is not Investment advice.