Garrett DeSimone, Head of Quantitative Research at OptionMetrics
Jun 18, 2024
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Garrett DeSimone, Head of Quantitative Research at OptionMetrics, discusses his dissertation on event risk premia in single stocks and the implications for option pricing. They delve into the impact of macro events on options trading, the challenges of pricing options accurately, and the evolving nature of option markets. They also explore hedging strategies in a low VIX environment, portfolio scaling using implied downside volatility, and developing a model for calculating implied dividends in the options market.
Holding straddles on key macro news days may lead to substantial losses due to inflated implied volatility levels.
Implied dividends show a diminishing risk premium, indicating reduced market volatility and improved risk assessments among investors.
Deep dives
PhD Dissertation on Event Pricing and Straddles
Analyzing the earnings event risk premium for stocks, Garrett DeSimone's dissertation revealed that holding straddles on specific macro news days led to substantial losses. Examining the inflated implied volatility levels before key macro events, like CPI releases, showed the risk of owning straddles. This study highlighted the systemic risk compensation element tied to market volatility dynamics.
Options Data Analysis and Market Volatility
High one-day implied moves in sectors like tech stocks before earnings demonstrated that buying volatility ahead of earnings could lead to losses. Garrett's research emphasized that volatility risk premiums can be high around macro events, affecting options pricing dynamics and market movements.
Uses of Cash as a Hedging Strategy
In comparison to traditional option-based hedges, holding cash yielded better results in mitigating downside risks. Cash proved to be a more effective means of protecting a portfolio against market fluctuations, outperforming strategies involving long volatility positions and options due to cost efficiencies and simplicity.
Implications of Implied Dividends in the Market
Examining implied dividends revealed a diminishing risk premium associated with dividend streams for single-name companies. The decreasing concerns around future dividend payments indicated reduced market volatility and improved risk assessments among investors. This shift in implied dividends highlighted a market trend towards lower risk aversion and enhanced confidence in dividend stability.
Earning a Ph.D. in financial economics is no small feat. And not only did Garrett DeSimone do just that, but he would unknowingly embark on his future career in the process of doing so. His dissertation from the University of Delaware involved the study of event risk premia in single stocks ahead of earnings. And to perform the analysis he engaged with OptionMetrics, a firm specializing in implied volatility data. Now the Head of Quantitative Research there, Garrett leads the firm’s efforts to deliver carefully constructed data sets to its client base, while generating original empirical studies of option pricing and trading strategies.
Our discussion considers some of his work, starting with his dissertation and the finding that the earnings event risk premium for single stocks makes straddles punitive to own. We liken this to a more recent phenomenon at the index level – the inflated one-day S&P 500 implied vol levels that have occurred in days before 3 macro events – the CPI, the Nonfarm payrolls report and FOMC meetings. We talk as well about one day options and the risk of a blowup. At least at this point, Garret sees flows that are reasonably mixed, with no obvious risk of instability resulting from positioning. Lastly, we discuss recent work he’s done on implied dividends using a novel approach. Relative to years earlier, he finds that there is currently very little risk premium implied in dividends. That is, the market is charging almost nothing for bearing the risk that dividends wind up disappointing on the downside. It’s interesting work and a good example of the rich information that can be extracted from derivatives markets.
I hope you enjoy this episode of the Alpha Exchange, my conversation with Garrett DeSimone.
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