Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/70129 
Year of Publication: 
2012
Series/Report no.: 
CFR Working Paper No. 06-09 [rev.]
Publisher: 
University of Cologne, Centre for Financial Research (CFR), Cologne
Abstract: 
We develop a stock return-predictive measure based on an efficient aggregation of the portfolio holdings of all actively managed U.S. domestic equity mutual funds, and use this model to study the source of fund managers' stock-selection abilities. This generalized-inverse alpha (GIA) approach reveals differences in the ability of managers to predict firms' future earnings from fundamental research. Notably, the GIA's return-forecasting power is not subsumed by publicly available quantitative predictors, such as momentum, value, and earnings quality, nor is it subsumed by methods shown in past research to forecast stock returns using fund holdings or trades.
Document Type: 
Working Paper

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