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Buy Rough, Sell Smooth

In: Options — 45 years since the Publication of the Black–Scholes–Merton Model The Gershon Fintech Center Conference

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  • P. Glasserman
  • P. He

Abstract

Recent work has documented roughness in the time series of stock market volatility and investigated its implications for option pricing. We study a strategy for trading stocks based on measures of their implied and realized roughness. A strategy that goes long the roughest-volatility stocks and short the smoothest-volatility stocks earns statistically significant excess annual returns of 6% or more, depending on the time period and strategy details. The profitability of the strategy is not explained by standard factors. We compare alternative measures of roughness in volatility and find that the profitability of the strategy is greater when we sort stocks based on implied rather than realized roughness.We interpret the profitability of the strategy as compensation for near-term idiosyncratic event risk.

Suggested Citation

  • P. Glasserman & P. He, 2023. "Buy Rough, Sell Smooth," World Scientific Book Chapters, in: David Gershon & Alexander Lipton & Mathieu Rosenbaum & Zvi Wiener (ed.), Options — 45 years since the Publication of the Black–Scholes–Merton Model The Gershon Fintech Center Conference, chapter 7, pages 89-125, World Scientific Publishing Co. Pte. Ltd..
    • Handle: RePEc:wsi:wschap:9789811259142_0007
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    More about this item

    Keywords

    Options; Call; Put; Stock; Equity; Bond; Debt; Dividend; Investment; Diversification; Volatility; Black–Scholes; Merton Model; Stochastic; Swap; Commodity; Index; Contingent Claims; Exotic Option;
    All these keywords.

    JEL classification:

    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G15 - Financial Economics - - General Financial Markets - - - International Financial Markets
    • G1 - Financial Economics - - General Financial Markets
    • C - Mathematical and Quantitative Methods
    • C02 - Mathematical and Quantitative Methods - - General - - - Mathematical Economics

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