Barclays Plc saw the volume of U.S. shares traded at its dark pool rise to the highest since it was sued by New York for allegedly lying to customers of the venue.

About 106 million U.S. shares were traded in the private trading platform in the week of July 28, up 21 percent from about 87.6 million in the previous week, according to data from the Financial Industry Regulatory Authority. That’s the most since 312 million shares were traded in the week of June 23.