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We examine the forecast quality of Chicago Board Options Exchange (CBOE) implied volatility indexes based on the Standard and Poor's 100 and Nasdaq 100 stock indexes. We find that the forecast quality of CBOE implied volatilities for the Samp;P 100 (VIX) has significantly improved in recent...
Persistent link: https://www.econbiz.de/10012739471
The generalized lambda distribution is proposed as a useful model for security price distributions. Originally used to generate random variables with varied skewness and kurtosis values in Monte Carlo simulations, proposed financial applications include estimation of state price densities from...
Persistent link: https://www.econbiz.de/10012742827
A hidden martingale restriction is developed for option pricing models based on Gram-Charlier expansions of the normal density function. The restriction is hidden behind a reduction in parameter space for the Gram-Charlier expansion coefficients. The resulting restriction is invisible in the...
Persistent link: https://www.econbiz.de/10012779589
The academic literature generally concludes that the Black-Scholes model overstates the value of employee stock options (ESOs). In particular, because ESOs cannot be traded, employee risk aversion often elicits premature exercise. As a result, the ESO is less valuable than a traded option. An...
Persistent link: https://www.econbiz.de/10012744115
We examine the reaction of the equity options market to accounting earnings announcements over the period 1996–2008 using changes in implied volatility to measure the options market response to earnings news. We find that positive earnings surprises and positive profit announcements produce a...
Persistent link: https://www.econbiz.de/10010576377
We compare the incremental information content of implied volatility and intraday high-low range volatility in the context of conditional volatilityforecasts for three major market indexes: the S&P 100, the S&P 500, and the Nasdaq 100. Evidence obtained from out-of-sample volatility forecasts...
Persistent link: https://www.econbiz.de/10005073664
The intraday high-low price range offers volatility forecasts similarly efficient to high-quality implied volatility indexes published by the Chicago Board Options Exchange (CBOE) for four stock market indexes: S&P 500, S&P 100, NASDAQ 100, and Dow Jones Industrials. Examination of in-sample and...
Persistent link: https://www.econbiz.de/10005261602
Persistent link: https://www.econbiz.de/10007742847
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Over the last 2 decades after-hours earnings announcements have become more prevalent, resulting in a shift in earnings-related price changes from the announcement date to the next trading day. We highlight three aspects relevant for event studies around earnings announcements. First, daily...
Persistent link: https://www.econbiz.de/10012735206