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A comment on Why Do High-Frequency Traders Cancel So Many Orders?. Parent comment

Re:Why Do High-Frequency Traders Cancel So Many Orders? by jameshart on Friday October 09, 2015 @10:27AM (#10360196)
One of Matt Levine's consistent themes though is that there is often a very fine line between 'just reacting quickly to public market information' and illegal insider activity, so the scare quotes may be intended to imply a degree of 'you decide if you think this is completely above board'.
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Re:Why Do High-Frequency Traders Cancel So Many Orders? by hueving on Friday October 09, 2015 @12:03PM (#10360941)
No, there is rarely a fine line. It's a very obvious line of "are you trading on information on the market". An HFT doesn't even have the ability to front-run unless they are also providing a brokerage service.
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