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VIX Options Product Specifications

VIX Snapshot

(as of March 19, 2024)

VIX/VIXW

Symbol

12497K100

CUSIP Number

100

Multiplier

Product Detail Page

Trading Hours

Regular Hours

8:30 a.m. to 3:15 p.m. (CT)

Curb

3:15 p.m. to 4:00 p.m. (CT)

Global Trading Hours

7:15 p.m. to 8:25 a.m. (CT)

EXPIRATION TRADING HOURS

Last Trading Day for an expiring VIX/VIXW option contract will be the day immediately preceding the day on which the exercise settlement value is calculated, 4:00 pm CT

The Cboe Volatility Index - more commonly referred to as the "VIX Index" - is an up-to-the-minute market estimate of expected volatility that is calculated by using real-time S&P 500®Index (SPX) option bid/ask quotes. Only SPX options with Friday expirations are used to calculate the VIX Index. The VIX Index is calculated between 2:15 a.m. CT and 8:25 a.m. CT and between 8:30 a.m. CT and 3:15 p.m. CT. Only SPX options with more than 23 days and less than 37 days to the Friday SPX expiration are used to calculate the VIX Index. These SPX options are then weighted to yield a constant, 30-day measure of the expected volatility of the S&P 500 Index.