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Title: Performance of the global minimum variance portfolio : a study on correlation and volatility estimation.
Authors: Tan, Wei Hao.
Goh, Siew Min.
Ong, Kevin Kang Ming.
Keywords: DRNTU::Business::Finance::Portfolio management
Issue Date: 2012
Abstract: This paper studies the returns of efficient portfolios based on different estimations of the covariance matrix. More specifically we derive the Global Minimum Variance Portfolio (GMVP) weights, using different estimation methodologies to derive the covariance matrix. The out-of-sample performance of the GMVP was analyzed under varying assumptions in order to identify if there exists a set of methodology that consistently outperform the others. The results show that the use of GARCH(1,1) estimates for volatility would usually improve portfolio returns and Sharpe Ratio. This effect is observed regardless of the correlation estimation methodology used. From the findings, the preferred methodology for estimating correlation estimates are Constant and Weight Positive Correlations as they tend to exhibit high Sharpe Ratios with relatively low portfolio turnover compared to historical estimates of correlation.
Rights: Nanyang Technological University
Fulltext Permission: restricted
Fulltext Availability: With Fulltext
Appears in Collections:NBS Student Reports (FYP/IA/PA/PI)

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