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Order Imbalance and Individual Stock Returns

  • Author(s): Chordia, Tarun
  • Subrahmanyam, Avanidhar
  • et al.
Abstract

This paper studies the relation between order imbalances and daily returns of individual stocks. Our tests are motivated by a model which explicitly considers how market makers dynamically accommodate autocorrelated imbalances emanating from large traders who optimally choose to split their orders. Price pressures caused by autocorrelated imbalances cause a positive relation between lagged imbalances and returns, which reverses sign after controlling for the current imbalance. We find empirical evidence consistent with these implications. We also find that imbalance-based trading strategies yield statistically significant returns. Our results shed light on the role of inventory effects in daily stock price movements.

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