CBOE S&P 500 BuyWrite Index (BXM)
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The CBOE S&P 500 BuyWrite Index (ticker symbol BXM) is a benchmark index designed to show the hypothetical performance of a portfolio that engages in a buy-write strategy.
Descriptions
The term buy-write is used because the investor buys stocks and writes call options against the stock position. The writing of the call option provides extra income for an investor who is willing to forego some upside potential.
The BXM Index is designed to show the hypothetical performance of a strategy in which an investor buys a porfolio of the S&P 500 stocks, and also sells (or writes) covered call options on the S&P 500 Index.
History
Investors have used exchange-listed options to engage in buy-write strategies since the 1970s, but prior to 2002 there was no major benchmark for buy-write strategies. In 2000 and 2001, options portfolio managers requested that the Chicago Board Options Exchange develop a benchmark index for buy-write strategies. In conjunction with a [study by Professor Robert Whaley] of Duke University, the Chicago Board Options Exchange introduced the CBOE S&P 500 BuyWrite Index in 2002.Investors have used covered call strategies for more than three decades. As noted in a magazine article “Buy Writing Makes Comeback as Way to Hedge Risk.” Pensions & Investments, (May 16, 2005), two developments have enhanced the interest in covered call strategies in recent years: (1) in 2002 the Chicago Board Options Exchange introduced the first major benchmark index for covered call strategies, the [CBOE S&P 500 BuyWrite Index (ticker BXM)], and (2) in 2004 the [Ibbotson Associates] consulting firm published [a case study on buy-write strategies]. More than thirty new buy-write investment products have been introduced since mid-2004 (see examples below).
Samples of Buy-write Investment Products
News Clips - References
- Blake, R. "Investors Are Dusting Off an Old Strategy, Options Overlay; When It Works, It Offers Both Yield Enhancement and Risk Management." Institutional Investor, (Sept. 2002), pp. 173 - 174.
- Crawford, Gregory. “Buy Writing Makes Comeback as Way to Hedge Risk.” Pensions & Investments, (May 16, 2005).
- Demby, E. R. “Maintaining Speed -- In a Sideways or Falling Market, Writing Covered Call Options Is One Way To Give Your Clients Some Traction.” Bloomberg Wealth Manager, (February 2005).
- Feldman, Barry and Dhuv Roy. "Passive Options-Based Investment Strategies: The Case of the CBOE S&P 500 BuyWrite Index." [The Journal of Investing], (Summer 2005).
- Ferry, John. "An Array of Options - A Buy-write Strategy Can Add Some Octane to Portfolios When the Markets Lack Direction." Worth Magazine, (April 2005), pp. 102 - 104.
- Keenan, C. “Mass Appeal It's Still a Niche Market, But More Assets Are Flowing Into Mutual Funds That Use Hedge Fund Techniques.” Institutional Investor, ( July 2004).
- Moran, Matthew. “Risk-adjusted Performance for Derivatives-based Indexes – Tools to Help Stabilize Returns.” The Journal of Indexes. (Fourth Quarter, 2002) pp. 34 – 40.
- Roeder, David. "New Funds Try Options to Boost Stock Income." Chicago Sun-Times, (October 10, 2004).
- Schneeweis, Thomas, and Richard Spurgin. "The Benefits of Index Option-Based Strategies for Institutional Portfolios" [The Journal of Alternative Investments], (Spring 2001), pp. 44 - 52.
- Tan, Kopin, "Yield Boost -- Firms Market Covered-call Writing to Up Returns." Barron's, (Oct. 25, 2004).
- Tergesen, Anne. ["Taking Cover with Covered Calls."] Business Week, (May 21, 2001), pp. 132.
- Wasik, J. “Used Wisely, Options Can Help Dodge Stock Losses.” Bloomberg News, (May 15, 2005).
- Whaley, Robert. "Risk and Return of the CBOE BuyWrite Monthly Index" [The Journal of Derivatives], (Winter 2002), pp. 35 - 42.
- Woolley, S. “Squeeze Your Portfolio Harder,” BusinessWeek, (December 27, 2004).
External Links -- Education and Benchmark Indexes
- [Covered Calls Worksheet]
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