Intel Shares Plunge Nearly 29 Percent on Weak Q4 Guidance Marking Worst Single-Day Drop Since 1974
What happened
Intel Corporation shares dropped nearly 29 percent on October 30, 2026, erasing more than $140 billion in market value after weak fourth-quarter revenue guidance triggered the stock's sharpest single-day decline in 52 years.
The Context
- Data center growth hit a ceiling: Third-quarter data center revenue rose 80 percent year-over-year to $7.3 billion, but that expansion was offset by projected drops in personal computer shipments of 12 percent in 2026 and 10 percent in 2027.
- Supply chains took simultaneous hits: Elevated memory costs alongside an operational shutdown at Intel's Kiryat Gat facility in Israel constrained overall production capacity.
- Spillover reached broader markets: The selloff pulled down peer chipmakers like AMD by 11 percent, dragged South Korea's KOSPI down nearly 3.5 percent, and erased an estimated $12 billion in paper value from the United States government's 10 percent equity stake.
The Number
— the single-day market capitalization wiped out from Intel alone, contributing to broader semiconductor sector losses that exceeded $1 trillion across global exchanges.
Takeaway
Watch for tightening corporate hardware refresh cycles and extended component lead times through 2027 as chipmakers pivot capital expenditures away from client computing toward enterprise artificial intelligence infrastructure.
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