Abstract
The subject here is construction of the covariance matrix for portfolio optimization. In terms of the ex post standard deviation of the global minimum-variance portfolio, there is no statistically significant gain in using more sophisticated shrinkage estimators rather than simpler portfolios of estimators. This finding holds whether or not the investor imposes short sale constraints to prevent portfolio weights from being negative.
TOPICS: Portfolio construction, statistical methods, risk management
- © 2007 Pageant Media Ltd
Don’t have access? Click here to request a demo
Alternatively, Call a member of the team to discuss membership options
US and Overseas: +1 646-931-9045
UK: 0207 139 1600
Log in using your username and password
In this issue
Shrinking the Covariance Matrix
