Intel foundry push faces critical test after stock's 45% plunge in October

Intel's stock just logged its steepest drop since the 1970s, and the company now faces mounting pressure to show its foundry business can actually work. October's 45% plunge came as the outlook for the PC market worsened, according to CNBC's reporting.

The selloff shifts the investment debate. Intel's turnaround now rests on whether its foundry strategy can deliver, rather than on the PC cycle alone. Customers are watching for evidence the company will add fab capacity and close the gap with TSMC, the benchmark rival named in the report.

CNBC describes the foundry business as "flailing" and in need of a start. That framing matters: a 45% one-month decline suggests the market has already repriced the PC weakness, which leaves foundry execution as the remaining swing factor. This is interpretation, not reported fact, but it follows from the source's emphasis that the turnaround "hinges" on foundry proof.

The pressure is intensifying, not easing. A drop of this magnitude, the worst since the 1970s, puts management under a sharper microscope, and any concrete step on fab capacity could carry outsized weight against depressed expectations.