The Investable Volatility Index® ("the Index") is designed to measure the return of an investment in the forward implied volatility of the S&P 500® Index. The return of the Index reflects changes in the level of forward implied volatility of the S&P 500® Index by using market prices of listed S&P 500® Index options plus a return on the previous Index level at the prevailing one-month U.S. Treasury bill yield. The Index measures the forward implied volatility of the S&P 500® Index for a three-month window centered approximately five months in the future. The Index level is published on Bloomberg under the symbol "VOL Index" and on Reuters under the symbol "VOL".
5 year % change vs. VIX Index (VIX) *
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