Key Highlights

  • Intel (NASDAQ:INTC) plunged 28.58 percent on October 30, 2026, reported as its worst session since 1974, after forecasting fourth-quarter Revenue of USD 15.0 billion to 16.0 billion and adjusted Earnings of USD 0.25 per share versus 0.43 expected.
  • Dell Technologies (NYSE:DELL) dropped roughly 9 to 10 percent that day after the chipmaker warned the personal computer slowdown could persist through at least the first half of 2027, a spillover move across the PC Supply chain.
  • HP (NYSE:HPQ) declined about 9 to 10 percent with Dell, as investors viewed the chipmaker's outlook as a signal for Demand for laptops and desktops, an inference the company's own releases will need to confirm.
  • Advanced Micro Devices (NASDAQ:AMD) slid roughly 10 percent, with published figures spanning 9.6 to 10.9 percent across timestamps, and it reports on Tuesday, November 3, 2026 after the close, with Options pointing to an 8.8 percent move.

Intel (NASDAQ:INTC): Its Roughest Session Since 1974

Intel (NASDAQ:INTC) sank 28.58 percent on October 30, 2026, a move another published account rounded to 28.6 percent, and it was described as the company's worst day since 1974. The catalyst was fourth-quarter guidance. Revenue was projected at USD 15.0 billion to 16.0 billion, adjusted Earnings Per Share at USD 0.25 against a 0.43 consensus, and gross Margin at 38.0 percent against 44.1 percent expected. Gross margin is the portion of revenue left after the direct cost of making the product, so a decline of about 6.1 percentage points, simple arithmetic on the two numbers, means each dollar of sales now produces noticeably less profit. The chief financial officer said the personal computer slowdown would persist through at least the first half of 2027. That remark matters because PC processors 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 factory spending while sales fall, and rivals gaining share.

Dell Technologies (NYSE:DELL): Swept Up in the PC Downturn

Dell Technologies (NYSE:DELL) dropped about 9 to 10 percent on October 30, 2026 following the chipmaker's caution on personal computers. This connection is an inference, not a statement from the company: PC makers buy processors from chip suppliers and sell finished machines, so a chipmaker expecting weak PC demand through at least the first half of 2027 implies fewer machines being ordered. The move shows how fast a supplier's outlook can reprice its customers when investors fear a slowdown runs through the whole supply chain. Readers should note 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 decline also arrived on a day of broad technology weakness, when the Nasdaq Composite lost 2.9 percent and the chip index fell about 7.2 percent, so part of the fall may reflect general risk reduction rather than company-specific worry. Watch the next company release, inventory commentary and any shift in the outlook for commercial PC refresh cycles. Risks include softer corporate spending and pressure on margins.

HP (NYSE:HPQ): Same Warning, Comparable Decline

HP (NYSE:HPQ) declined about 9 to 10 percent on October 30, 2026, moving alongside its PC rival after the same caution. The company sells personal computers and printers, so a slowdown in PC demand hits its sales directly. As with its peer, the link to Intel's outlook is an inference, since the company itself announced nothing 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, however. Pricing, the 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 saw 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 Roughly 10 Percent Slide Ahead of Results

Advanced Micro Devices (NASDAQ:AMD) slid roughly 10 percent on October 30, 2026, with published figures spanning 9.6 to 10.9 percent depending on the timestamp, as the Philadelphia Semiconductor Index dropped about 7.2 percent in one session. Nvidia (NASDAQ:NVDA) fell 4.2 percent, showing that the selloff reached AI leaders as well as PC-exposed names. The company reports on Tuesday, November 3, 2026 after the close, and options point to 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 comes 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 flagged.

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 set Intel (NASDAQ:INTC) apart with a drop of 28.58 percent. The PC makers followed because investors read the warning across the supply chain. Dell Technologies (NYSE:DELL) dropped about 9 to 10 percent. HP (NYSE:HPQ) fell by a similar amount. Advanced Micro Devices (NASDAQ:AMD) lost about 10 percent amid a wider chip selloff. The evidence supports spillover, but each company's exposure to PCs was not confirmed. The next catalyst is AMD on November 3, 2026. This is not Investment advice.