American University
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Institutional S&P 500 Index mutual funds as financial commodities : fact or fiction?

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posted on 2023-08-05, 08:06 authored by David M. Smith, H BakerH Baker, John A. Haslem

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. We find 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 Index 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. Our data do not support the notion that institutional investors buy high-priced S&P 500 index funds to access broader or lower-cost investment services from fund families. We conclude the market for institutional S&P 500 Index funds is not completely homogenous.



American University; University of Maryland College Park; University at Albany (SUNY)


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