Betting Against Beta
AQR Capital Management, LLC
Lasse Heje Pedersen
Copenhagen Business School; New York University (NYU); AQR Capital Management, LLC; Centre for Economic Policy Research (CEPR)
October 9, 2011
Swiss Finance Institute Research Paper No. 12-17
We present a model with leverage and margin constraints that vary across investors and time. We find evidence consistent with each of the model’s five central predictions: (1) Since constrained investors bid up high-beta assets, high beta is associated with low alpha, as we find empirically for U.S. equities, 20 international equity markets, Treasury bonds, corporate bonds, and futures; (2) A betting-against-beta (BAB) factor, which is long leveraged low beta assets and short high-beta assets, produces significant positive risk-adjusted returns; (3) When funding constraints tighten, the return of the BAB factor is low; (4) Increased funding liquidity risk compresses betas toward one; (5) More constrained investors hold riskier assets.
Number of Pages in PDF File: 85
Date posted: May 3, 2012
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