Intel $INTC just had its worst day ever. Down 30% in a single session.

Not during the dot-com crash. Not in the 1970s stagflation. Never.

This is the kind of move that gets studied in finance textbooks. When a legacy tech giant with decades of history posts a decline this extreme, it's not just about one bad quarter. It's a market reassessment of the entire business model.

For context: Intel dominated chip manufacturing for generations. Now it's losing ground to TSMC in manufacturing, AMD in CPUs, and Nvidia in AI chips. The moat is gone.

What changed? Likely a combination of weak guidance, margin compression, and investors finally accepting that the turnaround story isn't happening fast enough.

This is what capitulation looks like in real time.