Discussion paper

DP16319 Best Short

We infer investors' expectations about future stock returns through a measure of short conviction that exploits net short positions disclosed at the investor-stock level for European stock markets. A strategy that sells high-conviction stocks and buys low-conviction stocks, named Best Short, generates a risk-adjusted excess return that is larger than 8% per annum and differs from the performance of traditional strategies
based on aggregate short interest. Its profitability, moreover, cannot be explained by transaction costs, stock characteristics, frictions in the securities lending market, leverage constraints, and measures of price inefficiency.

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Citation

Della Corte, P, R Kosowski and N Rapanos (eds) (2021), “DP16319 Best Short”, CEPR Press Discussion Paper No. 16319. https://new.cepr.org/publications/dp16319