Key Highlights

● ASE Technology fell sharply in premarket trading on Friday, October 30, 2026.

● No company-specific news was found.

● Chip packaging and test companies fell alongside chipmakers.

● Intel guided Revenue to $15 billion to $16 billion.

Shares of ASE Technology Holding (NYSE:ASX) fell sharply in premarket trading on Friday, October 30, 2026, according to market data 6:30 a.m. Eastern snapshot. No company-specific news was found; the move reflected a sector-wide selloff in semiconductor stocks, with chip packaging and test companies falling alongside chipmakers.

ASE, based in Kaohsiung, Taiwan, is the world's largest provider of outsourced semiconductor assembly and test services. It packages chips made by foundries and verifies that they work before they go into phones, computers and data-center servers. Because it handles chips for much of the industry, its shares tend to track the sector's broad fortunes.

Intel sets off a global selloff

The trigger came from Intel (NASDAQ:INTC). After Thursday's close, Intel guided fourth-quarter revenue to $15 billion to $16 billion, well short of the roughly $17.1 billion to $17.3 billion consensus, and adjusted Earnings to $0.25 a share. It warned of cash burn this year, citing a weak PC market driven by memory prices and availability, Manufacturing hurdles and an accident at its factory in Kiryat Gat, Israel.

Intel's shares suffered their biggest one-day drop on record, according to market data. A Bank of America (NYSE:BAC) analyst said the "agentic tide" in Data Center is "more than offset by PC/supply headwinds." Intel also signaled that the PC slowdown could last into 2027.

"Our OEM partners are aggressively managing inventory to match the softer sell-through," Intel chief executive Lip-Bu Tan said, as reported by market data

The sector buckles

Selling spread across the chip Supply chain. AMD, Qualcomm (NASDAQ:QCOM) and Marvell Technology (NASDAQ:MRVL) tumbled, while Nvidia (NASDAQ:NVDA), Broadcom (NASDAQ:AVGO) and Micron (NASDAQ:MU) fell. Taiwan Semiconductor (NYSE:TSM) Manufacturing, ASE's fellow Taiwanese chip heavyweight, slid with the group. Equipment makers Applied Materials (NASDAQ:AMAT), Lam Research (NASDAQ:LRCX) and ASML (NASDAQ:ASML) dropped, and Aehr Test Systems, a maker of chip test equipment, fell in premarket trading without company news.

The Philadelphia Semiconductor index fell steeply to close at 10,688.80. PC makers Dell (NYSE:DELL) and HP also tumbled on Intel's warning about the PC market, and memory and storage names Sandisk (NASDAQ:SNDK), Western Digital (NASDAQ:WDC) and Seagate (NASDAQ:STX) slid as well. The Cboe (CBOE:CBOE) Volatility Index rose to 19.42.

A bruising day for Wall Street

The broader market followed the chips lower. The Nasdaq Composite fell 747.73 points to 25,437.00, its worst session since June. The S&P 500 lost 140.32 points to 7,580.07 and the Dow Jones Industrial Average dropped 572.25 points to 51,770.31. Amazon (NASDAQ:AMZN)'s results, which showed negative trailing free Cash Flow of $42.4 billion, added to doubts about AI spending.

The Federal Reserve left its benchmark rate range unchanged earlier in the week, but two officials dissented in favor of a hike, and CME FedWatch data showed traders treating a December increase as likely. Investors rotated into energy, consumer staples, utilities and health care.

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

What to watch

Investors will watch whether the chip selloff extends into next week and whether other suppliers echo Intel's comments about PC Demand and memory prices. Qualcomm reports on Nov. 4, and Super Micro Computer (NASDAQ:SMCI) reports on Nov. 3, offering further reads on hardware demand.

On the broader calendar, Apple (NASDAQ:AAPL) reports on Monday, Nov. 2, the midterm elections are Tuesday, Nov. 3, and the October jobs report arrives Friday, Nov. 6, ahead of the Fed's December meeting.