An Analysis of Index Option Writing with Monthly and Weekly Rollover
10 Pages Posted: 20 Mar 2016
Date Written: January 27, 2016
This paper analyzes the performance of the two CBOE PutWrite Indexes through the end of 2015. The two PutWrite indexes are found to have had strong performance in several areas: 1) Annual premium income: From 2006 to 2015, the average annual gross premium collected was 24.1 percent for the PUT Index and 39.3 percent for the WPUT Index. While a one-time premium collected by the weekly WPUT Index usually was smaller than a one-time premium collected by the monthly PUT Index, the WPUT Index had higher aggregate annual premiums because premiums were collected 52 times, rather than 12 times, per year. 2) Lower risk: Over the last 10 years, since the launch of Weeklys options, the WPUT Index had a lower standard deviation than the PUT and S&P 500 Indexes. The maximum drawdowns were 24.2 percent for the WPUT Index, 32.7 percent for the PUT Index and 50.9 percent for the S&P 500 Index. 3) Higher long-term returns with lower volatility: Looking longer-term with the PUT Index, since mid-1986, the annual compound return of the PUT Index was 10.13 percent, compared with 9.85 percent for the S&P 500 Index. The standard deviation of the PUT Index was substantially lower as well, 10.16 percent versus the S&P 500 Index’s 15.26 percent.
Keywords: put writing indexes, weekly options, implied and realized volatilities
JEL Classification: G13
Suggested Citation: Suggested Citation