The CBOE S&P 500 BuyWrite Index (BXMSM) is designed to represent a proposed hypothetical buy-write strategy. Like many passive indexes, the BXM Index does not take into account significant factors such as transaction costs and taxes and, because of factors such as these, many or most investors should be expected to underperform passive indexes. Investors attempting to replicate the BXM Index should discuss with their brokers possible timing and liquidity issues. Transaction costs and taxes for a buy-write strategy such as the BXM could be significantly higher than transaction costs for a passive strategy of buying-and-holding stocks. Past performance does not guarantee future results. Standard & Poor's®, S&P®, and S&P 500® are registered trademarks of The McGraw-Hill Companies, Inc. and are licensed for use by the Chicago Board Options Exchange, Incorporated (CBOE). CBOE, not S&P, calculates and disseminates the BXM Index. The CBOE has a business relationship with Standard & Poor's on the BXM. LEAPS®, FLEX®, OEX®, XEO®, MNX®, CBOE® and Chicago Board Options Exchange® are registered trademarks of the CBOE, and SPXSM, and CBOE S&P 500 BuyWrite IndexSM BXMSM are servicemarks of the CBOE. The methodology of the CBOE S&P 500 BuyWrite Index is owned by CBOE and may be covered by one or more patents or pending patent applications.