"... Regulators are circling the wagons. BATS Global Markets is said to be nearing a regulatory settlement over allegations it unfairly favored certain high-speed customers. This follows the abrupt departure last month of its CEO, the combative Bill O’Brien.
“It really appears that BATS is coming in for probably some heavy fines or sanctions,” Nagy said.
New York Attorney General Eric Schneiderman and the SEC are pressing forward as some of the biggest dark-pool operators, including Goldman Sachs, Morgan Stanley, Credit Suisse and Barclays, are caught in the crossfire.
Rich Gates, a portfolio manager at TFS Capital in West Chester, Pa., expects to see regulators slam the brakes on some HFT players.
“I think we will see more changes,” said a jubilant Gates, featured in Michael Lewis’s “Flash Boys.” “It is exciting to watch and see all the changes and regulatory pressure.”"
source: High-frequency trading guns aiming for battle | New York Post