Key Highlights

● AMD plunged on Friday, October 30, 2026, with no company-specific news.

● Intel's weak fourth-quarter forecast and cash-burn warning set off the selloff.

● Intel expects the PC slowdown to last into 2027.

● AMD competes directly with Intel in PC and server processors.

Advanced Micro Devices (NASDAQ:AMD) plunged on Friday, October 30, 2026. There was no company-specific news. The stock fell in a semiconductor rout set off by its longtime rival Intel (NASDAQ:INTC), which issued a weak fourth-quarter forecast and warned of cash burn on Thursday evening.

AMD, based in Santa Clara, California, designs processors for personal computers, servers and gaming consoles, along with graphics chips and accelerators used in artificial intelligence data centers. Because it competes directly with Intel in PC and server processors, investors often read Intel's results as a signal for the wider market both companies serve.

What Intel said

Intel forecast fourth-quarter Revenue of $15 billion to $16 billion, well below the roughly $17.1 billion to $17.3 billion analysts had expected. It warned of cash burn this year, citing a weak PC market tied to memory prices and availability, Manufacturing hurdles and a factory accident in Israel. Intel also said it expects the PC slowdown to last into 2027.

"In recent weeks, our customers began signaling a PC slowdown based on the memory prices and availability," Intel Chief Executive Lip-Bu Tan said on the earnings call, according to market data

Intel's shares suffered what market reports called their steepest one-day drop on record. The damage quickly spread.

A sector in retreat

The Philadelphia Semiconductor index fell steeply to close at 10,688.80. Nvidia (NASDAQ:NVDA) moved lower with the sector and lost about $185 billion in market value, according to market data. Qualcomm (NASDAQ:QCOM), Broadcom (NASDAQ:AVGO), Micron (NASDAQ:MU), Marvell Technology (NASDAQ:MRVL), Applied Materials (NASDAQ:AMAT) and Lam Research (NASDAQ:LRCX) also fell, while Sandisk (NASDAQ:SNDK) slid despite beating forecasts amid worries that memory pricing is peaking.

The broader market suffered its worst day since June. The S&P 500 fell 140.32 points to 7,580.07. The Dow Jones Industrial Average lost 572.25 points to 51,770.31, and the Nasdaq Composite tumbled 747.73 points to 25,437.00, its worst session since June 5. The Russell 2000 dropped 47.37 points to 2,811.84.

Other big technology names added to the pressure. Amazon (NASDAQ:AMZN) reported trailing 12-month free Cash Flow of negative $42.4 billion and signaled more Capital spending next year. Alphabet (NASDAQ:GOOGL) extended its losses after a record drop on Thursday. Together, those results deepened questions about the payoff from heavy spending on AI.

A trading specialist said: "A lot of them kind of got ahead of themselves. It's all earnings based and right now, they're not producing,"

A senior market strategist said on Thursday that "The love-hate relationship with tech and AI continues, and investors are becoming more discerning following earnings."

Investors moved money out of chips and into energy, consumer staples, health care and utilities. Oil climbed above $100 a barrel, crypto stocks slid after Binance was reportedly hacked for about $6.3 billion, and markets now expect the Federal Reserve to raise rates in December after it left its benchmark rate range unchanged on Wednesday.

What to watch

With no company-specific news behind the drop, AMD's shares may continue to trade in line with the broader chip sector. Investors will watch for signs of whether the PC weakness Intel described also affects other suppliers, and whether Demand for AI data-center chips holds up.

The coming week brings Apple (NASDAQ:AAPL)'s results on Monday, November 2, and Qualcomm's on Wednesday, November 4, offering fresh reads on device and chip demand. The midterm elections fall on Tuesday, November 3, and the October jobs report arrives on Friday, November 6.