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Portfolio Optimization Using Forward-Looking Information*
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DOI：10.1093/rof/rfu006.png)
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摘要
En 中文
We develop a new family of estimators of the covariance matrix that relies solely on forward-looking information. It uses only current prices of plain-vanilla options. In an out-of-sample study, we show that a minimum variance strategy based on these fully-implied estimators outperforms several benchmark strategies, including various strategies based on historical estimates, index investing, and 1/N investing. The outperformance originates in crisis periods when information flow and information asymmetry are high. Although the historical benchmark strategies improve when more recent data are used, they never outperform fully-implied strategies. Thus, our results suggest that investors are better off relying on forward-looking information.
Keyword:
IMPLIED VOLATILITY
OPTION VOLUME
STOCK
RISK
RETURN
PRICES
COVARIANCES
PERFORMANCE
MODEL
INDEX
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8.4
论文数:
908
被引数:
4.8K
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Option volume and stock prices: Evidence on where informed traders trade.png)
JOURNAL OF FINANCE
JOURNAL OF FINANCEIF9.5
PREAI
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