The Longer VIX Sits Between 20 and 30, the More Likely It Hits 30

• Low vol: VIX under 20.
• Mid vol: VIX between 20 and 30.
• High vol: VIX above 30.

Whenever the VIX closes in the mid-vol zone, it eventually leaves that zone one of two ways: it breaks out above 30, or it settles back down below 20. We wanted to know whether the odds of each outcome depend on how long the VIX has already been stuck in the middle.

We found every distinct episode where the VIX stayed between 20 and 30 for one or more consecutive trading days, then tracked each episode to see which boundary it hit first. The upper boundary counts as hit the moment the VIX's intraday high touches 30, even if the close settles back inside 20-30. The lower boundary requires a close below 20.

The odds climb steadily, then the sample thins out

When the VIX enters the 20-30 zone for the first time, it usually drops back below 20 before it ever touches 30. Only 29.3 percent of these episodes go on to touch 30. The other 70.7 percent fade back under 20 first. This matches how most mid-volatility episodes behave. They tend to be short spikes that calm down within a few days.

If the VIX stays in the 20 to 30 zone longer, the odds of it eventually touching 30 rise steadily. They reach 31.8 percent by day 2, 36.8 percent by day 3, climbing through the 40s over the following days, and reaching an even 50.0 percent by day 9 and beyond.

This article only tested the 20-30 zone. Use our VIX Zone Analyzer Tool to test any pair of boundaries yourself and see how the odds change.