What Quadrupled Intel Stock Was Not Foundry Customers

Demand for its server chips runs ahead of what Intel can make, and the price now carries a build-out that is still years from finished.

Intel (INTC) stock has more than quadrupled over the past year, a 330% return, running from $23.86 to $102.50 while the S&P 500 returned 21.4%. The obvious explanation is that the AI trade lifted every semiconductor name at once. That lifted plenty of them, but it does not account for the size of this one. What re-rated these shares over the last twelve months is older and more physical than the foundry argument that has run for years.

Not Even AMD’s 184% Comes Close

Over the same twelve months AMD returned 184.3%, the closest any peer came, and still finished a long way back. NVDA returned 23.9%, barely ahead of the S&P 500. A rising tide across AI silicon does not produce a spread like that. Something company-specific changed over those twelve months, and the June quarter is where it shows up most plainly.

The Server Business Earned It, Outside Foundry Customers Did Not

The data center and AI segment turned over $6.3 billion in the June quarter, up 59% year over year, at a 40% operating margin. By the company’s own account, AI infrastructure keeps demanding general-purpose server CPUs alongside accelerators, and Xeon 6 has become one of the fastest-ramping products in Intel’s history. Management’s problem is that it cannot build them fast enough, with demand still outstripping a growing supply. The external foundry business this whole debate was built on billed $293 million in the same quarter, and the Intel Foundry segment as a whole, on $5.8 billion of revenue, still lost $2.1 billion, a loss $348 million smaller than the quarter before.

Demand Was Never The Bottleneck, Substrates And Memory Were

Management describes one of the most severe supply constraints the industry has seen, across leading-edge logic wafers, memory and substrates, with its own supply growth weighted to the end of Q3 2026 and into Q4 2026. Relieving that takes capital: capital spending is now guided to more than $20 billion for calendar 2026, with 2027 higher again. Unit costs are falling as volume arrives. The primary Panther Lake part is roughly 50% cheaper to build so far in 2026, though those newer parts still carry gross margins below the company average while they ramp. Management had already flagged that success might require it to tap the capital markets, even from a balance sheet the CFO put at $40 billion of liquidity, and in August it did, selling $20 billion of new stock at $95 a share. Funding capacity with new equity is a different proposition from the Trefis High Quality Portfolio, which insists on defensible balance sheets in its holdings.

The Price Now Carries The Build-Out

The turn in the business is real: the operating margin now runs at 7.6% over the trailing twelve months against a three-year average of -2.0%, while the bottom line has not followed, with net margin over the same twelve months at -19.8%, worse than its own three-year average of -13.0%. The market has already paid for much of that turn, and then some. The shares touched $140.94 over the trailing 52 weeks and now sit about 27% below that. The question that matters from here is how much growth the current price already assumes.

Enjoy The Move, Then Check What It Did To Your Allocation

A move like this is even better to own than to watch, and it is also how one holding grows into an outsized share of a portfolio. A position that has grown large enough to matter is worth sizing deliberately rather than by accident. What a position that size would do to your net worth is exactly what the Trefis Wealth team computes, with the same rules-based systematic discipline that runs our High Quality Portfolio. Request a free vulnerability audit of your biggest positions.