VIX · USA

CBOE Volatility Index

18.22

-0.59(-3.14%)

As of Apr 30, 2026

Price History▼ 26.23% over 1Y

About

What is the CBOE Volatility Index?

The CBOE Volatility Index (VIX) is not a stock index but a measure of the market's expected 30-day volatility of the S&P 500, derived in real time from S&P 500 options prices. Because it tends to spike when equity markets fall, it is colloquially known as the "fear gauge" of US markets.

History

Origin & evolution

Originally introduced in 1993 based on S&P 100 options, the VIX was overhauled in 2003 to use S&P 500 options and a model-free formula that does not depend on a particular option-pricing model. It is maintained by the Chicago Board Options Exchange (CBOE).

Index details

Provider: Cboe Global Markets
Inception: 1993 (revised 2003)
Constituents: S&P 500 options (model-free)
Methodology: Implied 30-day volatility from option prices

ConstituentsFull holdings list with weights and moversComing soon

Sector BreakdownComposition by GICS sector and industryComing soon

Top MoversDaily gainers and laggards within the indexComing soon

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