Robert R. Warnock

UBS O'Connor LLC is a registered investment advisor and hedge fund manager headquartered in Chicago, Illinois. The firm was founded in 2000 and is a subsidiary of UBS Asset Management (Americas) Inc., ultimately owned by UBS Group AG (SIX, NYSE: UBS) in Switzerland. UBS O'Connor primarily provides discretionary and non-discretionary investment advisory services to various types of pooled investment vehicles, (which may or may not be exempt from registration), pension or profit-sharing plans, and institutional separately managed accounts.

Founded in 1999 by Rob Merrilees, Spot Trading LLC is a technology-focused proprietary trading firm located in Chicago. The firm specializes in investments in equity options. They employ proprietary technology and processes to make volatility-based pricing decisions and to exploit inefficiencies in the equity options markets. To maximize risk-adjusted returns, Spot Trading's proprietary trading model uses automation, qualitative analysis, quantitative analysis and sound risk management principles.