RT Journal Article SR Electronic T1 Institutional S&P 500 Index Mutual Funds as Financial Commodities JF The Journal of Investing FD Institutional Investor Journals SP 24 OP 34 DO 10.3905/joi.2008.707215 VO 17 IS 2 A1 John A. Haslem A1 H. Kent Baker A1 David M. Smith YR 2008 UL https://pm-research.com/content/17/2/24.abstract AB Given their simplicity and presumed commodity-like nature, institutional S&P 500 Index mutual funds should be subject to active price competition, resulting in only nominal size-adjusted differences in expenses. This article finds a wide disparity among fund expense ratios and their corresponding characteristics and performance. Overall, the evidence suggests some price competition among institutional S&P 500 funds, but not to the extent that they may be considered financial commodities. One explanation for the existence of high-priced index funds is that they tend to require significantly lower minimum initial purchases. The data do not support the notion that institutional investors buy high-priced S&P 500 funds to access broader or lower-cost investment services from fund families, and the conclusion is that the market for institutional S&P 500 funds is not completely homogenous.TOPICS: Security analysis and valuation, performance measurement, technical analysis