The index measures the daily inverse performance of a portfolio of first and second month VIX futures contracts. This theoretical portfolio is rolled each day to maintain a consistent time to maturity of the futures contracts. The index is calculated daily at 4:00 p.m. (Eastern time) and at a value calculated from the average price for the futures contracts between 3:45 p.m. (Eastern time) and 4:00 p.m. (Eastern time).
Company profile updated October 11, 2026.
As of October 9, 2026. Daily closing data may differ from the live quote shown in the dashboard.
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