We develop a new family of estimators of the covariance matrix that relies solely on forwardlooking 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...

This paper determines the value of asset tradeability in an option pricing framework. In our model, tradeability is valuable since it allows investors to exploit temporary mis-pricings of stocks. The model delivers several novel insights on the value of tradeability: The value of tradeability is...

This paper determines the value of asset tradeability in an option pricing framework. In our model, tradeability is valuable since it allows investors to exploit temporary mis-pricings of stocks. The model delivers several novel insights on the value of tradeability: The value of tradeability is...

In this paper we develop the first estimator of the covariance matrix that relies solely on forward-looking information. This estimator only uses price information from a cross-section of plain-vanilla options. In an out-of-sample study for US blue-chip stocks we show that a minimum-variance...

This paper determines the value of asset tradeability in an option pricing framework. In our model, tradeability is valuable since it allows investors to exploit temporary mis-pricings of stocks. The model delivers several novel insights on the value of tradeability: The value of tradeability is...

In this paper we develop a new family of estimators of the covariance matrix that relies solely on forward-looking information. These estimators only use current price information from a cross-section of plain-vanilla options and employ different higher moments of the implied return...

This paper provides the first empirical test of the diversification of opinions theory and the group shift theory using real business data. Our data set covers management teams and single managers of US equity mutual funds. Our results reject the group shift theory and support the...

We provide evidence on the valuation of equity positions by hedge fund advisors. Reported valuations deviate from standard valuations based on closing prices from CRSP for roughly seven percent of the positions. These deviations are economically significant for about 25 percent of the hedge fund...

We provide evidence on the valuation of equity positions by hedge funds. Reported valuations deviate from standard valuations based on closing prices from CRSP for roughly seven percent of the positions. These equity valuation deviations are positively related to illiquidity and price volatility...

The paper is concerned with the influence of index arbitrage trading on the mispricing process in the presence of market frictions. Specifically, it highlights the as yet ignored impact of short selling restrictions in the spot market and early unwinding opportunities on the mispricing process.A...