Intel did what stocks are not supposed to do on an earnings beat. It lost more than a quarter of its value in one session. The print was fine. The forecast was the problem, and it came with a cause that reaches well beyond one company.
Why did Intel fall 28.58% after beating earnings?
Because the market trades the next quarter, not the last one. Intel beat on Q3 profit, then guided Q4 earnings per share at roughly 40% below what analysts expected. A beat that already happened is worth little when the forecast resets the earnings base lower. Volume confirmed it: the sell was forced and broad, not a slow fade.
Intel reported adjusted EPS of $0.52 against roughly $0.40 expected, on revenue of $16.51 billion, up 21% year over year. On Friday, October 30, the stock closed at $65.76, down 28.58% from $92.07, on 455.6 million shares traded versus a 30-day average of 104.8 million.
Applied to the reported $349.5 billion market cap, the $26.31 drop is roughly $140 billion of value gone in one day. That figure is our arithmetic, not a reported number.
What exactly did Intel guide for Q4?
Intel guided Q4 revenue to a range well under consensus and earnings per share close to half of the Street's number. It also guided gross margin down sharply. The three numbers moved together, which is why analysts could not call it a one-line miss.
The company guided Q4 revenue of $15 billion to $16 billion and adjusted EPS of $0.25, against expectations of about $17.1 billion and $0.43. Non-GAAP gross margin is guided at 38.0%, a steep step down from Q3. Sources differ on the exact Q3 margin base, so treat the size of the drop as a range, not a point.
An early-October accident at an Israel fab also cuts about $300 million from Q4 revenue. That is real, but it explains only a slice of the gap to consensus.
Why is the PC market the real story?
Intel says a memory-chip shortage is pushing up PC prices and cutting units. A cost input that is rationed hits margins and volume at the same time. That is a different problem from a weak quarter, and it does not fix itself on a calendar.
Intel expects the PC market to shrink 12% in 2026 and 10% in 2027. CFO David Zinsner said the company sees the PC slowdown continuing at least through the first half of next year. CEO Lip-Bu Tan said the environment should persist until memory availability and prices begin to normalize.
The split inside the quarter matters. Client computing revenue fell 5% to $8.1 billion while data center and AI revenue rose 78% to $7.3 billion. The growth engine is working. The legacy engine is where the shortage lands.
Who else got hit?
Anyone selling into the same PC cycle. Dell and AMD took the largest hits, and Nvidia fell least because its exposure to PCs is smaller. The pattern is a read on PC exposure, not on AI demand.
At the close, AMD fell 10.88%, Dell fell 10.77% and Nvidia fell 4.22%. Premarket moves had been similar in size for Dell and AMD, per 24/7 Wall St., with the semiconductor ETF SOXX down about 7% at that point.
On the OpticAlpha terminal, INTC sits at the top of the unusual-volume list at 4.7x average volume, with the hot list led by the same name and headlines saying analysts see no reason to buy the dip.
What should traders watch next?
Three things: how the stock opens after a weekend to digest a 28% gap, whether the foundry story gets customer names, and whether PC-exposed peers keep trading as a group. The memory shortage is the variable that decides the second and third.
Intel has no major external foundry customers yet, and Tan said a couple of customers would be announced over the next two quarters. The company also completed a $23 billion equity offering in the quarter, which spreads future profit over more shares.
Today's calendar adds noise: ISM manufacturing prints at 10:00 AM ET, and Apple and Palantir report after the close. The setup to remember is simple. A beat on the quarter that just ended does not protect a stock when the next quarter's cost base is moving the wrong way.
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