Abnormal Trading Volume: Key Findings on Stock Returns episode artwork

EPISODE · Oct 18, 2025 · 10 MIN

Abnormal Trading Volume: Key Findings on Stock Returns

from Papers With Backtest: An Algorithmic Trading Journey · host Papers With Backtest

What if the secret to unlocking the mysteries of stock market performance lies in understanding abnormal trading volume? In this enlightening episode of Papers With Backtest: An Algorithmic Trading Journey, our hosts delve deep into a groundbreaking research paper by Lee, Kim, and Kim from 2016 that scrutinizes the intricate relationship between abnormal trading volume and stock returns. This episode is a must-listen for traders and investors eager to enhance their understanding of market behavior and refine their trading strategies. Join us as we explore the core question: Can unusual trading activity be a reliable predictor of future stock performance? The hosts dissect the comprehensive methodology employed in the study, which analyzed a vast dataset of common stocks from the NYSE, Amex, and Nasdaq spanning an impressive timeframe from January 1968 to December 2015. This extensive analysis not only provides insights into historical trends but also equips listeners with the knowledge to navigate today's dynamic trading landscape. One of the key takeaways from this episode is the innovative approach of separating trading volume into two distinct components: expected trading turnover (E-turn) and unexpected trading turnover (U-turn). The findings are striking: E-turn negatively predicts stock returns, suggesting that higher expected trading often correlates with lower future returns. Conversely, U-turn demonstrates a positive correlation with future returns, indicating that unexpected trading activity may signal potential price increases. This nuanced understanding is crucial for traders seeking to make informed decisions based on volume data. Throughout the episode, we emphasize the significance of distinguishing between these two types of trading volume. Without this decomposition, raw volume can send mixed signals, leading to potentially misguided trading strategies. By honing in on the subtleties of trading volume, you can elevate your trading acumen and enhance your algorithmic trading strategies. Whether you’re a seasoned algorithmic trader or just starting your journey, this episode of Papers With Backtest will equip you with valuable insights and actionable knowledge. Tune in to discover how abnormal trading volume can reshape your approach to stock selection and risk management, and gain a competitive edge in the ever-evolving world of finance. Don’t miss out on this opportunity to deepen your understanding of market dynamics and refine your trading approach! Hosted on Ausha. See ausha.co/privacy-policy for more information.

Episode metadata supplied by the publisher feed · Published Oct 18, 2025

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This episode was published on October 18, 2025.

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