The SEC adopted a new rule that would establish a pilot
program (the "Pilot") to study the effects that
transaction-based fees and rebates in certain National Market
System ("NMS") stocks may have on order-routing behavior,
execution quality and market quality generally. The Pilot will be
applicable to all stock exchanges and will last for up to two
years.
According to the SEC, the Pilot will create two test groups of
exchanges, with one group barred "from offering rebates and
linked pricing" and the other group limited to a fee cap of
$0.0010. The data from the Pilot will be utilized to facilitate an
empirical assessment of the market impact of an exchange's
transaction-based fees and rebate structure.