The 1-2 week window in VIX worth knowing about

There's a clock in the VIX cycle worth knowing about.

It starts running the moment VIX crosses into mid-vol from below, and it runs for about one to two weeks. That's the window where the data shows your highest probability of vol getting smashed back down.

After that window, the edge erodes massively.

I don't have a clean theory for why it's specifically the first one to two weeks. Markets just behave that way. The data shows it consistently across cycles.

Treating vol like it's always mean-reverting is how a lot of bearish-vol trades get blown up. The data shows vol mean-reverts hard for a week or two after the cross, then the dynamic shifts. At three to four weeks without reversion, the trade has changed. You're betting that a new regime gets unwound, which is a completely different bet from fading a spike.

For me, the setup is simple.

If VIX crosses into mid-vol this week or next. Take a starter clip of bearish VIX exposure for July or August expiry.

If vol reverts in the first one to two weeks into 4th July, take the win. If it doesn't, cut and wait for the next setup.

That's the trade. Asymmetric, time-bounded, with a built-in exit rule that keeps you out of the regime-change scenario where bearish-vol trades go to die.

The 1-2 week window is where the edge lives, and it's also the boundary where you have to be willing to admit you're wrong. The trader who correctly identifies vol as too high but stays in past that boundary ends up sitting through the regime change the spike was actually pricing.

The window is the edge. The exit rule is the discipline.

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