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This paper improves continuous-time variance swap approximation formulas to derive exact returns on benchmark VIX option portfolios. The new methodology preserves the variance swap interpretation that decomposes returns into realized variance and option implied-variance.We apply this new...
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Conventional financial theory considers ex-ante that risk, generally measured by the volatility, has to be …
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volatility and other characteristics. Across stocks, trading costs are unrelated to the magnitude of momentum profits …
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16:00) generally increases the variability of implied volatility spreads between puts and calls. In addition, it results … in considerable distortions at the outbreak of the COVID-19 pandemic and strongly affects aggregate implied volatility …
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