Citadel Securities Pitches Lower Tick-Size Pilot Program to SEC

The US Securities and Exchange Commission headquarters in Washington.

Photographer: Valerie Plesch/Bloomberg

Citadel Securities asked the Securities and Exchange Commission to test reducing the price increments that some stocks and ETFs trade at before embarking on major market structure changes.

In a letter submitted to the SEC, Citadel Securities urged Wall Street’s top regulator to run a two-year pilot program with the 60 most liquid stocks. Half of them could be subject to quotations in half-penny increments and the other half would remain a control group at full penny increments.