Margaret Wiermanski

OptionsCity Software, Inc. provides electronic trading and analytics software to the options and futures industry. Its products include Metro, City Store, Freeway, CityTrader, City API and City Execution. The firm's solutions include professional trading, market making, risk management, algorithmic trading, hosting services and exchange connectivity. The company was founded by Hazem Dawani, Rudy Fasouliotis, and Victor Glava in October 2006 and is headquartered in Chicago, IL.

Founded in 1995, CTC LLC is a brokerage firm headquartered in Chicago, Illinois. The firm is also known as Chicago Trading Co. They are a proprietary market making firm and are recognized internationally as a leading provider of pricing and liquidity on all U.S. derivatives exchanges. The firm provides an array of trading and execution services for their clients. They do not provide any internal research.