Using comprehensive data on London Interbank Offer Rate (Libor) submissions from 2001 through 2012, we document systematic evidence consistent with banks manipulating Libor to profit from Libor related positions and, to a degree, to signal their creditworthiness during the distressed times for...

We document that S&P 500 futures finish in the proximity of the closest strike price more often on days when serial options on S&P 500 futures expire than on other days. The effect is driven by the interplay of market makers' rebalancing of delta hedges due to the time-decay of the hedges as...

We show that Standard & Poor's (S&P) 500 futures are pulled toward the at-the-money strike price on days when serial options on the S&P 500 futures expire (pinning) and are pushed away from the cost-of-carry adjusted at-the-money strike price right before the expiration of options on the S&P 500...

Investments in short-term dividend assets outperform investments in the market according to Binsbergen, Brandt, and Koijen (2012), but contrary to predictions of several asset pricing models. To examine these findings, we double the sample to 24 years. We also advocate an interest rate-invariant...

Based on the typical positions of S&P 500 option market makers, we derive a funding illiquidity measure from quoted prices of S&P 500 derivatives. Our measure significantly affects the returns of leveraged managed portfolios; hedge funds with negative exposure to changes in funding illiquidity...

We show that S&P 500 futures are pulled towards the at-the-money strike price on days when serial options on the S&P 500 futures expire (pinning), and are pushed away from the cost-of-carry adjusted at-the-money strike price right before the expiration of options on the S&P 500 index...