Advanced Micro Devices (AMD) stock fell 6.5% in premarket trading on Friday, following a sharp selloff in rival Intel (INTC), which dropped 25% after issuing fourth-quarter guidance well below Wall Street expectations.

Intel projected that revenue would decline roughly 20% sequentially from the third quarter, a forecast that pointed to a weak PC market heading into the end of the year. The guidance landed hard in part because Intel had just posted third-quarter earnings that beat expectations. Investors looked past the solid quarter and focused on what comes next. Forward guidance tends to carry that kind of weight, because it resets the expectations analysts apply not just to one company but to every peer selling into the same market.

BREAKING: Intel stock, $INTC, extends losses to -27% on the day, now on track for its biggest daily loss since 1974. This puts the stock down -53% from its June 30th record high. That's -$400 billion of lost market cap. pic.twitter.com/HpQbJzNQiu

— The Kobeissi Letter (@KobeissiLetter) October 30, 2026

Intel also said the inventory correction in the PC industry could run into the first half of 2027, a longer stretch of weakness than many had expected. Analysts may now cut their estimates for the sector, with companies tied to PC demand likely to face the most scrutiny.

AMD competes directly with Intel in PC processors, and traders treated the news as a warning sign for its own upcoming results. That kind of read-through is a familiar pattern in chip stocks: when a company at the center of an end market warns on demand, investors often mark down peers selling to the same buyers before those peers report. Intel's numbers do not necessarily say anything about AMD's performance, but the market did not wait to find out.

Intel's Guidance Sets the Tone

The selling spread across semiconductor stocks as investors worried that the same demand problems could show up in AMD's numbers. Extended inventory adjustments can slow new orders, and that can hold back revenue growth until buying picks up again.

For AMD, the questions center on client processor demand and when a broader recovery might arrive. How much of Intel's trouble applies to AMD will depend on the company's own sales and competitive position.

The weak Intel report was not the only drag on the market. Tech stocks also faced pressure from Amazon (AMZN), which reported higher-than-expected capital spending and posted its slowest growth in core e-commerce operations in three years. Those results weighed on Nasdaq futures, as investors ask harder questions about how much money big tech is pouring into AI infrastructure and when that spending will pay off.

What AMD Investors Will Watch Next

AMD is due to report quarterly results on November 3, just days after Intel's warning, making it one of the first reads on whether the weakness extends across the PC chip market. The report will show whether the chipmaker is seeing the same pressure as Intel.

Investors will look for comments on PC processor demand and listen for anything management says about inventory levels across the industry. With Intel flagging a correction that could stretch into the first half of 2027, any comment on how long AMD sees the current environment lasting will draw particular attention. The premarket drop suggests expectations have turned more cautious, with traders pricing in some risk before the numbers arrive.

AMD's guidance will matter as much as the quarter itself. It should help show whether Intel's outlook is a company-specific problem or an industry-wide one.

With AMD down 6.5% and Intel down 25% in premarket trading, sentiment toward PC-related chip stocks has weakened heading into AMD's November 3 report. Premarket quotes reflect early positioning, and the moves can change by the time regular trading opens.