CBOE Volatility Index

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CBOE Volatility Index

A mathematical measure of the implied volatility of options trading on the S&P 500 index. That is, the CBOE Volatility Index attempts to measure the likelihood of option prices to vary unpredictably in the context of a particular pricing model in this case, the Black-Scholes model. A higher number on the index represents greater volatility, while a lower number represents lower volatility. While critics maintain that its usefulness is overstated, the index is considered a leading indicator of option volatility in the wider market. The CBOE Index is operated by the Chicago Board of Options Exchange, and is also known as the VIX.

CBOE Volatility Index

See VIX Index.
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Expanded volume information for CBOE index and ETP options is available at: www.
The CBOE index rose nearly 30 per cent for the week
Our popular performance benchmarks have proven to be of great utility to market participants and have driven demand for additional CBOE index benchmarks," said CBOE CEO Edward T.
For additional information on CBOE index options, visit: http://www.
Expanded January 2014 volume information for CBOE index and ETP options is available at: www.
In fact, trading in CBOE index options was up 28% from a year earlier in the recent quarterly release, and these index-based contracts now make up nearly 38% of total trades for the firm.
Expanded full-year and April 2013 volume information for CBOE index and ETP options is available at: www.