What happened to Intel's stock on 30 October?
Intel shares closed 28.6% lower on Friday, 30 October 2026. It was the chipmaker's worst session since July 1974, after its fourth-quarter forecast landed far below Wall Street's expectations. Yahoo Finance calculated the move from Norgate Data closing prices going back to 1973. It said the fall erased nearly $140 billion in market value.
The drop capped a volatile year. Intel stock had nearly quadrupled from the start of 2026 to a record on 22 June. It is still up almost 80% this year. But Friday's close was its lowest since 22 April and left the shares more than half below their summer peak.
The sell-off spread across technology. The Nasdaq Composite fell 2.86% and the S&P 500 lost 1.82% on the same day, according to Yahoo Finance. PC makers Dell and HP also slid, and Alphabet and Amazon were hit after their own earnings reports. Reuters described a global chip rout.
Only one day in Intel's history was worse. The stock fell nearly 30% on 5 July 1974. Friday's move topped the roughly 26% plunge on 2 August 2024, according to Yahoo Finance. The shares fell as much as 30% during Friday's session, Reuters reported, before closing 28.6% lower.
Why did Intel's fourth-quarter guidance miss so badly?
The quarter itself beat expectations. Intel reported third-quarter revenue of $16.5 billion, up 21% from a year earlier. Non-GAAP earnings per share were $0.52 against its own guidance of $0.38. Revenue from data centre and AI chips rose 78% year on year. It was the eighth consecutive quarter in which Intel exceeded its own financial expectations, according to chief financial officer David Zinsner.
Guidance was the problem. Intel forecast fourth-quarter revenue of $15.0 billion to $16.0 billion, against roughly $17 billion expected by analysts polled by LSEG, CNBC reported. It guided non-GAAP earnings per share to $0.25, below the $0.43 consensus. Non-GAAP gross margin was guided to 38%, down from 44.1% in the third quarter. On a GAAP basis, the margin guide is 37.1% against 43.0%. The forecast already includes about $300 million of revenue lost to the Fab 28 shutdown, and two points of margin.
The PC market was already shrinking. Preliminary IDC data reported by TechPowerUp showed worldwide shipments fell 20.1% year on year in the third quarter of 2026. That took shipments to 62.7 million units, from 78.5 million a year earlier. HP shipped 30.9% fewer PCs and Dell 25% fewer. IDC expects no meaningful relief from the memory shortage before the end of 2027.
The cause sits in the PC market. Intel now expects the PC unit market to shrink about 12% in 2026, with second-half units down more than 20%. It expects another decline of roughly 10% in 2027. Management said customers began signalling a slowdown because of memory prices and availability. System prices have risen while IT budgets stay tight.
AI data centres are absorbing memory chips, pushing up prices for laptops and desktops, Yahoo Finance reported. Intel chief executive Lip-Bu Tan said the correction accelerated as manufacturers cut inventory to match softer sales. “The pace of the PC correction has accelerated over the last 2 months,” he said on the earnings call.
Those price increases reach buyers. Tan said year-to-date system prices have climbed significantly, adding pressure to limited IT budgets. Intel does not expect a sustained recovery until memory availability improves and prices normalise. PC makers are also cutting inventory faster than Intel expected, which pulled client revenue below its forecast in the third quarter.
Analysts cut their targets quickly. UBS analyst Timothy Arcuri said Intel “guided well below even the most bearish investor expectations.” Bank of America's Vivek Arya wrote that data centre strength was “offset by a surprisingly sharp drop in PC shipments.” He put that drop at 25-30% quarter on quarter and expected more inventory correction in the first half of 2027. Bernstein's Stacy Rasgon called the outlook “(in a word) terrible” and cut his target to $75 from $110.
Other banks moved too. Goldman Sachs kept a neutral rating with a $100 target. Wells Fargo cut to $80 from $120, and Barclays went to $75 from $100. The new targets clustered between $75 and $100. Most implied further falls from Thursday's close, though Bank of America's $100 target implied about 9% upside.
What did the Fab 28 explosion cost Intel?
The second blow came from Israel. On 14 October, an explosion at Intel's Fab 28 in Kiryat Gat seriously injured three workers. Police suspected a gas cylinder explosion, the Jerusalem Post reported. The fire involved nitrogen trifluoride, a cleaning gas used in chipmaking. Two workers later died, according to Tom's Hardware. The Kiryat Gat police commander said he could not point to any suspicion of criminal activity or negligence, Tom's Hardware reported.
Intel shut the plant for about two weeks. The company expects the incident to cost roughly $600 million in revenue across two quarters. That covers the fourth quarter of 2026 and the first quarter of 2027. Each period absorbs about $300 million, Tom's Hardware reported from the earnings call. It also expects a two-percentage-point hit to fourth-quarter non-GAAP gross margin.
Chief financial officer David Zinsner said production would resume within days. “We feel like we are going to be starting up production here by the end of this week,” he said on the call. Almost all of the fourth-quarter revenue impact relates to 10-nanometre server products, he added.
Fab 28 makes chips on Intel 7, the process formerly called 10nm Enhanced SuperFin. That includes input-output dies for Xeon 6 processors and older Xeon 5 Emerald Rapids chips, Tom's Hardware reported. Intel cannot simply shift the work to another fab. Each product needs specific manufacturing qualifications, and transfers take time and money.
Some uncertainty remains. Intel has not named the affected Xeon families or disclosed how many wafers were damaged. It has also not said when Fab 28 will return to full capacity, according to Tom's Hardware. Most of the wafer write-offs are expected in the fourth quarter. The missing full-capacity date means the supply effect could last longer than the two-week shutdown suggests.
Why is Intel's data centre business growing while PCs shrink?
Intel's server business is doing what the PC business is not. Data centre and AI revenue reached $7.3 billion, up 17% sequentially and nearly 80% year on year. It was the segment's strongest growth in 15 years. Operating profit was $3.0 billion, or 42% of segment revenue. Zinsner said DCAI is on track to finish 2026 nearly $10 billion above the expectations Intel had entering the year.
Intel's client business shows the other side. Client revenue fell 5% year on year to $8.1 billion, yet AI PC revenue grew 35%. Purpose-built silicon, the custom chip business, more than doubled year on year and rose more than 50% sequentially, according to Zinsner. Tan said that business has tripled over the past three years and is positioned to triple again.
Intel says agentic AI is broadening demand for CPUs. Tan argued that GPUs are good at “thinking tasks” while CPUs are more efficient at “finding” tasks. The company expects industry server CPU units to grow more than 30% in both 2026 and 2027. It also expects the industry to remain supply-constrained through 2027 and into 2028.
Product milestones are stacking up. Granite Rapids is now Intel's largest server product family. Clearwater Forest, its first 18A server chip, is shipping for revenue. Diamond Rapids, the first 18A-P server product, is sampling for a 2027 ramp. Intel also announced a planned Oracle Cloud Infrastructure collaboration around Diamond Rapids. At the Open Compute Project summit, it demonstrated Clearwater Forest configurations scaling beyond 46,000 cores per rack. The rack drew about 133 kilowatts.
Supply is still the constraint. Tan cited a shortage of advanced organic substrates used in EMIB packaging, on top of factory capacity. Intel's foundry unit grew 58% year on year to $6.7 billion. But external foundry revenue was only $411 million, and the unit reported a $1.9 billion operating loss.
How much has the US government's Intel stake lost?
The US government is a large Intel shareholder. It owns 9.9% of the company, bought in August 2025 at $20.47 a share, Yahoo Finance reported. Friday's decline cut more than $10 billion from the value of that holding by Yahoo's estimate. TechCrunch put the loss at $12 billion. The stake is still worth about three times the purchase price.
Nvidia is another financial partner. It agreed in September 2025 to invest $5 billion in Intel at $23.28 a share. The two companies also agreed to co-develop multiple generations of custom chips. Under the deal, Intel would build Nvidia-custom x86 data centre CPUs and PC system-on-chips. Those chips would pair x86 cores with Nvidia RTX GPU chiplets, connected through NVLink. Nvidia's own shares dipped slightly on Friday, TechCrunch reported.
For taxpayers, the loss is on paper. Intel's shares remain far above the $20.47 entry price. The government's position is still profitable even after the worst one-day fall in more than 50 years.
What has to go right for Intel in 2027?
Most of Intel's recovery case rests on manufacturing. Intel 18A is ramping in Oregon and Arizona, including Fab 62, its second high-volume 18A plant. The 18A-P node is due to launch by the end of 2026. In October, Intel released its 14A 0.9 process design kit to select customers. Client CPUs built on 18A now account for nearly one third of client CPU revenue, Zinsner said. That share was below 5% in the first quarter. He also said 18A costs have fallen about 40% since the first quarter. Intel 3 costs are down about 15%.
External foundry customers are the missing piece. Intel says it is working with “a couple of highly strategic customers” on 18A-P and multiple potential customers on 14A. It will not disclose names. External foundry revenue of $411 million remains small next to the unit's $1.9 billion operating loss.
The product roadmap has to convert as well. Panther Lake has ramped on 18A, and Wildcat Lake is sold out after a 70% sequential unit increase. Nova Lake, the first 18A-P client chip, is tracking ahead of schedule. Intel expects Nova Lake design wins to be twice Panther Lake's at launch and plans to share more at CES in January. Intel also announced plans to acquire Classiq, an Israel-based quantum software provider, to build a full-stack quantum platform. Tan described the company as 18 months into a rebuild that has cut middle management and resized the workforce.
Capital spending is rising. Intel still expects $20 billion of gross capital expenditure in 2026. It says 2027 spending will rise strongly, with equipment purchase orders up nearly 40% sequentially. It ended the quarter with about $54 billion in cash and short-term investments after a $23 billion equity offering in August. Intel says it remains committed to reducing debt in 2027. Non-GAAP operating expenses are guided to about $4.4 billion in the fourth quarter and $16.3 billion for the year. The August offering lifts the fourth-quarter diluted share count to 5.44 billion.
What should investors watch next?
The next hard test is Intel's fourth-quarter report early next year. Investors will want to see whether revenue lands inside the $15 billion to $16 billion range. They will also watch whether non-GAAP gross margin holds near 38%.
Fab 28's return to full production matters for server supply. Intel said it expected production to restart by the end of the week of 26 October. It has not said how quickly output returns to normal or how much work-in-progress inventory must be written off.
Memory prices are the other variable. Intel says it does not expect a sustained PC recovery until memory availability improves and prices normalise. It is planning for another 10% decline in PC units in 2027. Any sign that memory supply is easing would change that outlook.
Foundry customer announcements, 2027 capital spending and the US government's stake are the other markers. Intel's share price may stay volatile for reasons that have little to do with its server chips. But the company's ability to sell 18A and 14A capacity will decide whether the recovery survives the PC slump.
Intel's own forecast assumes PC units fall another 10% in 2027. If memory supply eases sooner, both client revenue and the stock could recover faster than guidance implies. If it does not, the server boom may keep carrying the results without lifting the share price. The shares resume trading on Monday, 2 November.