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Octeg LLC, which has been merged into a unit of KCG Holdings Inc

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The SEC has been seeking evidence of abuse of order types, as well as traditional forms of abusive trading like "layering" or "spoofing" and other issues relating to high-frequency trading that might be violations of the law, SEC Director of Enforcement Andrew Ceresney told Reuters in May (reut.rs/1kwSqF5).

Spoofing and layering are tactics where traders places orders that they cancel before they are executed to create the false impression of demand, aiming to trick others into buying or selling a stock at the artificial price.

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