Under the CAPM assumptions, the market capitalization weighted portfolio is mean-variance efficient. In real world applications it has been shown by various authors that low risk portfolios outperform the market capitalization weighted portfolio. We revisit this anomaly using high-frequency data...

We use intraday data to estimate the daily foreign exchange exposure of U.S. multinationals and show that macroeconomic news affects these firms’ foreign exchange exposure. News creates a substantial shift in the joint distribution of stock and exchange rate returns that has both a...

We study the dynamics of liquidity around jumps by identifying their exact intraday timing and retrieve all macroeconomic and firm-specific news for the 30 constituents of the Dow Jones Industrial Average index. We match around a third of the jumps with macroeconomic news announcements, while...

Implied expected returns are the expected returns for which a supposedly mean-variance efficient portfolio is effectively efficient given a covariance matrix. We analyze the statistical properties of monthly implied expected return estimates and study their sensitivity to the choice of a...