Moreover, although the company self-clears U.S. equities (at NSCC; National Securities Clearing Corp.) and maintains several prime broker relationships to facilitate trading, funding, and clearing of other asset classes, it remains more dependent on its largest prime broker, than higher rated peers. HRT's tangible equity provides capacity to absorb trading losses if its trading system risk controls fail. The stable outlook indicates our expectation that HRT will maintain its solid operating performance, strong capitalization, and supportive liquidity as it continues to expand its trading operations and risk. We expect the firm will maintain a RAC ratio comfortably and sustainably above 10%. Over the next 12 months, we could lower the ratings if we expect: HRT to suffer significant losses or