Size matters: US equity market players wrangle over new tick size regime
The industry expects the SEC to finalize the Reg NMS shake-up as soon as late summer. While there is broad agreement about the need for change, the extent of the reduction in access fees and tick sizes will have a big impact on markets.

For all the uncertainty surrounding the upcoming US election, one thing is now clear: there will be a new president in the White House come November. For the Securities and Exchange Commission (SEC), fresh administrations often herald a staffing shake-up, so the pressure is on for the Commission to finalize as many of its planned rules as possible before the winter.
One of the most consequential changes proposed by SEC is an adjustment to exchanges’ tick sizes—the minimum increments for quoting
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