SKEW
the ticker symbol for the CBOE Skew Index
SKEW is the ticker symbol for the CBOE Skew Index, a measure of the perceived tail risk of the distribution of S&P 500 investment returns over a 30-day horizon.
The index values are calculated and published by the Chicago Board Options Exchange (CBOE) based on current S&P 500 options market data.
SKEW is similar to the VIX index, but instead of measuring implied volatility based on a normal distribution, it measures an implied risk of future returns realizing outlier behavior. The index model defines an outlier as two or more standard deviations below the mean, which would characterize a black swan event or market crash. The index value typically reflects the trading activity of portfolio managers hedging tail risk with options, to protect portfolios from a large, sudden decline in the market. A SKEW value of 100 indicates the options market perceives a low risk of outlier returns; values increasing above 100 reflect an increased perception of risk for future outlier event(s).
“SKEW” enters the record as the ticker symbol for the CBOE Skew Index. Crown Archives preserves that source wording while asking what SKEW, ticker and symbol can confirm, complicate or overturn.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Jun 22, 2026. The linked authority identifier is Q30595495.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “SKEW” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.