Barclays Capital Inc. will pay $70 million and Credit Suisse Securities will pay $84.3 million to settle separate cases finding that they violated federal securities laws while operating alternative trading systems known as dark pools and Credit Suisse’s Light Pool.

Barclays will admit wrongdoing and pay $35 million penalties to the Securities and Exchange Commission and the New York Attorney General for a total of $70 million.

Credit Suisse neither admitted nor denied the charges and will pay a $30 million penalty to the SEC, a $30 million penalty to the NYAG, and $24.3 million in disgorgement and prejudgment interest to the SEC for a total of $84.3 million.

“These cases are the most recent in a series of strong SEC enforcement actions involving dark pools and other alternative trading systems,” said SEC Chair Mary Jo White. “The SEC will continue to shed light on dark pools to better protect investors.”

“Dark pools have a significant role in today’s equity marketplace, and the firms that run these venues must ensure that they do not make misstatements to subscribers about their material operations,” said Andrew Ceresney, Director of the SEC’s Enforcement Division.  “These largest-ever penalties imposed in SEC cases involving two of the largest ATSs show that firms pay a steep price when they mislead subscribers.”

Barclays said that a feature called Liquidity Profiling would “continuously police” order flow in its LX dark pool and that the firm would run “surveillance reports every week” for toxic order flow.

In fact, Barclays did not continuously police LX for predatory trading using the tools it said it would, and it also did not run weekly surveillance reports.

Barclays did not adequately disclose that it sometimes overrode Liquidity Profiling by moving some subscribers from the most aggressive categories to the least aggressive.  The result was that subscribers that elected to block trading against aggressive subscribers nonetheless continued to interact with them.

Barclays at times misrepresented the type and number of market data feeds that it used to calculate the National Best Bid and Offer in LX.

For example, Barclays represented that it “utilize[d] direct feeds from exchanges to deter latency arbitrage” when in fact Barclays used a combination of direct data feeds and other, slower feeds in the dark pool.

“Barclays misrepresented its efforts to police its dark pool, overrode its surveillance tool, and misled its subscribers about data feeds at the very time that data feeds were an intense topic of interest,” said Robert Cohen, co-chief of the Market Abuse Unit.  “Investors deserve fair and equitable markets without this misbehavior.”

Credit Suisse misrepresented that its Crossfinder dark pool used a feature called Alpha Scoring to characterize subscriber order flow monthly in an objective and transparent manner.  In fact, Alpha Scoring included significant subjective elements, was not transparent, and did not categorize all subscribers on a monthly basis.

Credit Suisse misrepresented that it would use Alpha Scoring to identify “opportunistic” traders and kick them out of its electronic communications network, Light Pool. In fact, Alpha scoring was not used for the first year that Light Pool was operational. Also, a subscriber who scored “opportunistic” could continue to trade using other system IDs, and direct subscribers were given the opportunity to resume trading.

Credit Suisse accepted, ranked, and executed over 117 million illegal sub-penny orders in Crossfinder.

Credit Suisse failed to treat subscriber order information confidentially and failed to disclose to all Crossfinder subscribers that their confidential order information was being transmitted out of the dark pool to other Credit Suisse systems.

Credit Suisse failed to inform subscribers that the Credit Suisse order router systematically prioritized Crossfinder over other venues in certain stages of its dark-only routing process.

Finally, CSSU also failed to disclose that it operated a technology called Crosslink that alerted two high frequency trading firms to the existence of orders that CSSU customers had submitted for execution.

“Two Credit Suisse ATSs failed to operate as advertised, and failed to comply with numerous regulatory requirements over a multi-year period,” said Joseph Sansone, Co-Chief of the Market Abuse Unit. “The Commission’s action today sends a strong message that the agency will continue to scrutinize ATSs for compliance with the securities laws.”