Are Large Traders Harmed by Front-running HFTs?

Ziyi Xu and Xue Cheng

Papers from arXiv.org

Abstract: This paper studies the influences of a high-frequency trader (HFT) on a large trader whose future trading is predicted by the former. We conclude that HFT always front-runs and the large trader is benefited when: (1) there is sufficient high-speed noise trading; (2) HFT's prediction is vague enough. Besides, we find surprisingly that (1) making HFT's prediction less accurate might decrease large trader's profit; (2) when there is little high-speed noise trading, although HFT nearly does nothing, the large trader is still hurt.

Date: 2022-11, Revised 2023-07
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