Size Anomalies in U.S. Bank Stock Returns: A Fiscal Explanation
The largest commercial bank stocks, ranked by total size of the balance sheet, have significantly lower risk-adjusted returns than small- and medium-sized bank stocks, even though large banks are significantly more levered. We uncover a size factor in the component of bank returns that is orthogonal to the standard risk factors, including small-minus-big, which has the right covariance with bank returns to explain the average risk-adjusted returns. This factor measures size-dependent exposure to bank-specific tail risk. These findings are consistent with government guarantees that protect shareholders of large banks, but not small banks, in disaster states.
This paper was revised on November 13, 2014
Document Object Identifier (DOI): 10.3386/w16553
Published: Size Anomalies in U.S. Bank Stock Returns PRIYANK GANDHI andHANNO LUSTIG† Article first published online: 12 MAR 2015 DOI: 10.1111/jofi.12235 © 2015 the American Finance Association Issue The Journal of Finance The Journal of Finance Volume 70, Issue 2, pages 733–768, April 2015
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