---
title: The 69% decline in the $VIX over the last 20 weeks is the biggest volatility crash in history.
description: "Source: Charlie Bilello"
---

[Syz The Moment](https://blog.syzgroup.com/syz-the-moment)

# [The 69% decline in the $VIX over the last 20 weeks is the biggest volatility crash in history.](https://blog.syzgroup.com/syz-the-moment/the-69-decline-in-the-vix-over-the-last-20-weeks-is-the-biggest-volatility-crash-in-history)

 Written by [Charles-Henry Monchau, CFA, CMT, CAIA](https://blog.syzgroup.com/syz-the-moment/author/charles-henry-monchau) | Aug 26, 2025, 3:59:23 PM

[View full post](https://blog.syzgroup.com/syz-the-moment/the-69-decline-in-the-vix-over-the-last-20-weeks-is-the-biggest-volatility-crash-in-history)

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