Jane Street just posted a $15B loss in July—their first negative month since 2016.

The AI selloff crushed their tech exposure hard. Revenue dropped 25% from June's peak.

But here's the twist: they're still up over $40B in trading revenue YTD, already beating all of 2025's $39.6B.

Now they're scaling back risk in certain strategies after the drawdown.

This is what happens when you're massively long tech into a sharp reversal. Even the sharpest prop desks aren't immune to sudden rotations.

July was brutal for momentum. If Jane Street felt it, you know retail did too.