The Effect of Investment Horizon on Institutional Investors' Incentives to Acquire Private Information on Long-Term Earnings*

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Abstract
We use quarterly institutional ownership changes to test the effect of investment horizon on institutional investors' incentives to acquire private information on long term earnings. Short horizon institutions' ownership changes contain private information on long term earnings, but only to the extent that such private information will be reflected in near term stock prices. There is little evidence that long horizon institutions' ownership changes contain private information on long term earnings that will be revealed in near term stock prices, but long horizon institutions' ownership changes contain private information on long term earnings that will be reflected in longer term stock prices.