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Hillary Clinton to Propose High-Frequency Trading Tax, Volcker Rule Changes

Her proposals amount to a doubling down on her bet that appeasing her party's populist base is worth more than the possibility of alienating wealthy donors.
Photographer: Scott Eisen/Getty Images
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Hillary Clinton will propose a tax aimed at penalizing “harmful” high-frequency trading strategies and offer ways to strengthen the Volcker Rule as she unveils another set of proposals Thursday aimed at what she has termed risky Wall Street behavior.

The Democratic presidential front-runner plans to call for a tax targeting trading strategies that rely heavily on order cancellations, a Clinton aide said Wednesday, previewing her announcements on the condition of anonymity.