This paper proposes a two-stage sealed-bid model for the execution of blind portfolios. An asset manager auctions a package of securities to a set of brokers who are unaware of the specific details about individual securities. We prove that our mechanism reduces the costs of execution for the...

Over the last decade, the volume of market-on-close orders has increased to more than 10% of the entire day's trading volume. This paper investigates this rise and documents four stylized facts: (i) passive investing leads to greater usage of market-on-close orders, consistent with passive...

This study assesses the level of potential insider trading on the Saudi stock market (Tadawul) before and after the introduction of financial reforms. The level of potential insider trading is estimated by employing the market cleanliness measure (MCM) which determines the proportion of...

We introduce a theoretical model of executives with insider information who receive executive stock options (ESOs) as incentives and optimize their “outside wealth” portfolios. We show that insider information nullifies ESO incentivizing, misaligning executives' and shareholders' interests....