The adaptive market hypothesis and high frequency trading

Ke Meng and Shouhao Li

PLOS ONE, 2021, vol. 16, issue 12, 1-19

Abstract: This paper uses NASDAQ order book data for the S&P 500 exchange traded fund (SPY) to examine the relationship between one-minute, informational market efficiency and high frequency trading (HFT). We find that the level of efficiency varies widely over time and appears to cluster. Periods of high efficiency are followed by periods of low efficiency and vice versa. Further, we find that HFT activity is higher during periods of low efficiency. This supports the argument that HFTs seek profits and risk reduction by actively processing information, through limit order additions and cancellations, during periods of lower efficiency and revert to more passive market-making and rebate-generation during periods of higher efficiency. These findings support the argument that the adaptive market hypothesis (AMH) is an appropriate description of how prices evolve to incorporate information.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0260724

DOI: 10.1371/journal.pone.0260724

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