What We Do

Quadriserv's AQS operates the world's largest CCP-based securities lending market and offers automated trading in over 5,000 underlying equity, ETF, index, and ADR products. As the first all-electronic, direct access securities lending market in the U.S., AQS has transformed the equity finance industry by creating efficient markets through innovative market structure and technology. AQS continues to expand its marketplace through the ongoing development of user-driven enhanced trading functionality, new product introductions and an ever growing membership base.