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Working Paper
Risk Parity Is Not Short Volatility (Not That There's Anything Wrong with Short Volatility)
August 21, 2019
Are risk parity strategies hiding an implicit short volatility? To find out, we simulated stylized versions of three asset-class (equity, fixed income, and commodities) risk parity and short volatility strategies, and we compared the trading behavior and returns of each.
Working Paper
Being Right is Not Enough: Buying Options to Bet on Higher Realized Volatility
September 27, 2018
Should investors who buy options expect to profit when realized volatility increases? If so, under what conditions? To answer these questions, we analyzed the relationship between long volatility performance (buying options) and contemporaneous changes in volatility.
Journal Article
An Alternative Option to Portfolio Rebalancing
March 5, 2018
We explore how investors can use an implementable option selling overlay to improve portfolio rebalancing.
Working Paper
Which Index Options Should You Sell?
July 7, 2017
We study return and risk properties of equity-hedged options across the S&P 500 option surface. We evaluate returns by estimating alpha to the S&P 500 and quantify risk using return volatility, losses under stress tests, and conditional value at risk.
Journal Article
Pathetic Protection: The Elusive Benefits of Protective Puts
February 24, 2017
Conventional wisdom is that put options are effective drawdown protection tools.
Journal Article
Embracing Downside Risk
January 15, 2017
This paper shows that downside risk tends to be the main source of long-run returns in equities and other asset classes, and argues that long-term investors may be better off embracing downside risk in certain cases.
Journal Article
Risk and Return of Equity Index Collar Strategies
July 1, 2016
Equity index collar strategies are often perceived as a way for investors, at little to no cost, to exchange some upside exposure for reduced losses on the downside.
Journal Article
Still Not Cheap: Portfolio Protection in Calm Markets
August 3, 2015
This paper investigates the relationship between option richness and volatility across 10 global equity indices.
Journal Article
Covered Call Strategies: One Fact and Eight Myths
October 21, 2014
Call overwriting is a method of simultaneously expressing a view on a security and its volatility, and the CBOE S&P 500 BuyWrite Index (BXM) is one of many ways to get exposure to the equity and volatility risk premia.