Why Is Intel Corporation (NASDAQ: INTC) Stock Up 226% This Year?

What happened

Shares of Intel Corporation (NASDAQ: INTC) closed at $120.23 on September 30. That was up 225.8% from the December 31, 2025 close of $36.90.

The business explanation is a product recovery paired with better manufacturing evidence. Second-quarter revenue rose, data-center sales accelerated and Intel 18A moved into high-volume production.

That progress made a recovery easier to believe. It did not prove that Intel Corporation (NASDAQ: INTC) has built a large external foundry business.

The price record cannot tell us how much of the gain came from operations, expectations, financing or the wider market. The filings do show the test behind the rerating: stronger products must become better foundry economics without sacrificing too much per-share value.

Read more: Intel (INTC) stock analysis and investment case

The move in numbers

Dividing the September 30 close by the December 31 close and subtracting one gives 225.8266%. Yahoo returned no split event during the period. Alpaca's IEX feed showed $36.91 and $120.15, producing 225.5% and confirming the direction and scale.

Second-quarter revenue was $16.128 billion, up 25% from a year earlier. Data Center and AI revenue reached $6.262 billion, up 59%. Those figures support the view that demand and execution improved.

The decisive foundry number is smaller. Intel Foundry reported $5.765 billion of second-quarter revenue, but only $293 million came from external customers. External revenue was 5.1% of the segment total.

The filing also says the external increase came mainly from Altera becoming an external customer after deconsolidation. That accounting change does not establish a new independent foundry win.

Intel Foundry's quarterly operating loss narrowed to $2.089 billion from $3.168 billion. Still, higher-cost Intel 18A wafers reduced product profit by $340 million during the ramp. Volume is improving, while the cost curve remains unfinished.

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How Intel Corporation (NASDAQ: INTC) makes money

Intel Corporation (NASDAQ: INTC) combines chip design with manufacturing. Its product groups sell PC processors, server CPUs, accelerators and related platforms. Intel Foundry makes those chips and offers process, packaging and manufacturing services to outside customers.

The integrated model can create a useful loop. Internal products load new factories first, giving engineers volume data and opportunities to improve yields. External customers can then buy capacity without funding an entire fabrication network themselves.

The relevant history is a long process-technology catch-up. The 2025 annual report says Intel 18A entered high-volume production. The June filing says Intel 18A-P entered risk production and makes later Intel 14A expansion dependent on committed demand and significant external design wins.

Advanced Micro Devices, Inc. (NASDAQ: AMD) competes for data-center and PC demand without owning comparable leading-edge factories. Its second-quarter data-center revenue was $6.718 billion, slightly above the DCAI figure for Intel Corporation (NASDAQ: INTC), although the segment definitions differ.

Taiwan Semiconductor Manufacturing Company Limited (NYSE: TSM) is the tougher foundry benchmark. It reported $40.20 billion of second-quarter revenue and a 67.7% gross margin. Intel Foundry remains far from those economics.

The market is large enough to matter. The Semiconductor Industry Association reported $795.6 billion of global chip sales in 2025 and cited a World Semiconductor Trade Statistics projection of $1.5 trillion for 2026. That is a market forecast, not revenue for Intel Corporation (NASDAQ: INTC).

Why the case is still difficult

Manufacturing absorbs cash before new nodes reach economic volume. Intel Corporation (NASDAQ: INTC) generated $8.102 billion of operating cash during the first half and spent $6.192 billion on property, plant and equipment. Operating cash covered that cash investment by 1.31 times.

The balance sheet offered room, with $29.727 billion of cash and short-term investments at June 27. Total debt was $50.537 billion. Those figures show capacity and obligation at the same time.

August financing changed the per-share test. Intel Corporation (NASDAQ: INTC) sold 210.5 million shares at $95, then issued another 31.6 million through the option. The prospectus figures imply that 242.1 million new shares increased the pre-offering count by about 4.8%.

The offering added capital for factories and working needs. It also directly weakens the standing claim that operating cash can fund the transition without dilution.

The strongest counterargument is that external foundry revenue can lag process recovery. Internal products may prove Intel 18A at volume before outside customers commit. If yields improve and Intel 14A wins large designs, today's 5.1% external mix could understate future value.

What's next

Start with the next quarterly report. Management guided to $15.8 billion to $16.8 billion of third-quarter revenue. Compare the result with gross margin, Intel Foundry losses and cash from operations.

Then separate true third-party foundry growth from revenue created by former subsidiaries changing classification. The investment case needs named customers, committed wafer volume and external revenue that becomes material beside internal transfers.

Watch Intel 14A decisions as well. Management says expansion should follow committed demand. Capacity added ahead of customers would raise the risk of another expensive underused node.

The bull case strengthens if product growth survives, foundry losses narrow and outside customers commit without another large share sale. It weakens if the product cycle cools before external foundry economics arrive. A 225.8% gain has raised the burden of proof.

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