"Revisiting the U-shaped Patterns in Volatility and Price Impacts: Nove" by Yashar H. Barardehi and Dan Bernhardt
 

Document Type

Article

Publication Date

3-4-2025

Abstract

When measured using trade-time aggregation, intraday patterns in trading activity remain U-shaped, but estimates of volatility and Kyle’s lambda fall sharply from open to close. U-shaped patterns in volatility and Kyle’s lambda found using commonly-used calendar-time aggregation reflect over-aggregation biases when trading activity is high as near the open and close. Indicative of imperfectly-competitive liquidity provision, trade-time aggregation also reveals that in active markets, expected trade imbalances are positively priced and unexpected trade imbalances are more strongly priced when they share the sign of expected imbalances, while in less active markets expected trade imbalances are negatively priced.

Comments

This article was originally published in Journal of Financial Markets, volume 74, in 2025. https://doi.org/10.1016/j.finmar.2025.100971

Peer Reviewed

1

Copyright

The authors

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.

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