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Title : What is the cost of high frequency trading? by Aquilina, Budish, and O'Neill
link : What is the cost of high frequency trading? by Aquilina, Budish, and O'Neill

What is the cost of high frequency trading? by Aquilina, Budish, and O'Neill

A recent WSJ article highlights a paper by Aquilina, Budish, and O'Neill:

Ultrafast Trading Costs Stock Investors Nearly $5 Billion a Year, Study Says
U.K. regulator’s study says ‘latency arbitrage’ imposes a small but significant tax on investors
"High-frequency traders earn nearly $5 billion on global stock markets a year by taking advantage of slightly out-of-date prices, imposing a small but significant tax on investors, a new study says."
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And here's the original paper from Britain's Financial Conduct Authority:

Quantifying the High-Frequency Trading 'Arms Race': A new methodology and estimates
Occasional papers 27/01/2020
by Matteo Aquilina, Financial Conduct Authority,
Eric Budish, University of Chicago Booth School of Business and NBER and Peter O’Neill, Financial Conduct Authority


"The authors use stock exchange message data to quantify the negative aspect of high-frequency trading, known as 'latency arbitrage.' The key difference between message data and widely-familiar limit order book data is that message data contain attempts to trade or cancel that fail."

 Summary:
"The authors use stock exchange message data to quantify the negative aspect of high-frequency trading, known as “latency arbitrage.” The main results show:

• races are frequent, fast and worth only small amounts per race
• a large proportion of daily trading volume is in races
• race participation is concentrated
• in aggregate, these small races make up a meaningful proportion of price impact
• in aggregate, these small races add up to meaningful harm to liquidity
• in aggregate, these small races add up to a meaningful total ‘size of the prize’
• The paper finds that while there is only a small detriment per transaction as a result, it adds up to a 17% reduction in the cost of liquidity and $5bn a year in tax on trading volume."

Thus Article What is the cost of high frequency trading? by Aquilina, Budish, and O'Neill

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