We directly estimate annual trading costs for a sample of equity mutual funds and find that these costs are large and exhibit substantial cross sectional variation. Trading costs average 0.78% of fund assets per year and have an inter-quartile range of 0.59%. Trading costs, like expense ratios,...

This study documents high-frequency (daily) mutual fund return autocorrelations and examines the causes and consequences. We assert the cause to be nonsynchronous trading in the underlying assets of the fund, which presents investors with an option to (indirectly) trade those assets at stale...