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The current VIX index value quotes the expected annualized change in the S&P 500 index over the following 30 days, as computed from options-based theory and current options-market data. To summarize, VIX is a volatility index derived from S&P 500 options for the 30 days following the measurement date, [ 5 ] with the price of each option ...
That ties the VIX to a specific date, said Michael Green, portfolio manager and chief strategist at ETF manager Simplify, making the index less useful as a broad measure of market sentiment.
The VIX is an index run by the Chicago Board Options Exchange, now known as Cboe, that measures the stock market’s expectation for volatility over the next 30 days based on option prices for the ...
The index was developed by Robert E. Whaley, a Vanderbilt University finance professor, [17] and was intended to measure the 30-day implied volatility of S&P 100 option prices. [16] In 2003, the underlying benchmark for the VIX was changed to the S&P 500. [18] The company launched tradeable products using VIX as the underlying index. [18]
The Nikkei stock index hemorrhaged 12% that Monday — its biggest one-day drop since 1987 — while the S&P 500 plummeted 3%. The VIX Volatility Index ( ^VIX ) spiked to 65, the third-highest ...
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