Question: Who was the co-founder of a brokerage and investment firm on institutional brokerage in Asia-Pacific stock markets? 
Context: Gary Coull (April 14, 1954–October 26, 2006) was a co-founder and chairman of CLSA, a brokerage house specializing in Asia-Pacific stock markets. FBR & Co. (Nasdaq:FBRC) is a capital markets firm headquartered in Arlington, Virginia.  Founded in 1989 by Emanuel J. Friedman, Eric F. Billings, and W. Russell Ramsey, the company provides investment banking, merger and acquisition advisory, institutional brokerage, and research services through its subsidiaries FBR Capital Markets & Co. and MLV & Co.  FBR focuses capital and financial expertise on the following industry sectors: consumer; energy & natural resources; financial institutions; healthcare; insurance; industrials; real estate; and technology, media & telecom.  FBR is based in the Washington, D.C. metropolitan area with offices throughout the United States. Piper Jaffray Companies (NYSE: PJC) is a full-service investment bank and asset management firm focused on mergers and acquisitions, financial restructuring, public offerings, public finance, institutional brokerage, investment management and securities research.  Through its principal subsidiary, Piper Jaffray & Co., the company targets corporations, institutional investors, and public entities. Wedbush Securities Inc. is a privately held financial services and investment firm that provides private and institutional brokerage, investment banking, equity research, fixed income, public finance, correspondent clearing, and asset management to individual, institutional and issuing clients.  Wedbush Securities was founded in 1955 and is headquartered at 1000 Wilshire Boulevard, Los Angeles, California.  The firm has over 100 offices, over 125 correspondent offices and close to 1,000 employees nationwide. Mischler Financial Group is the American financial services industry's oldest minority investment bank and institutional brokerage owned and operated by Service-Disabled-Veterans and is the first Finra member firm to become a federally-certified-Service Disabled Veteran Business Enterprise (SDVBE).  Mischler Financial Group is based out of Newport Beach, CA with co-headquarters in Stamford, CT and regional offices in Chicago, IL, Boston, MA, Red Bank, NJ, and Detroit, MI. Gardner Rich & Co LLC is an FINRA-registered, private stock brokerage firm founded by Chris Gardner in 1987.  The firm is headquartered in Chicago, Illinois, with offices in New York City, and San Francisco.  It is an institutional brokerage firm that specializes in the execution of derivative product transactions, as well as debt and equity for public pension plans, institutions, and large unions. Jefferies LLC is an American global investment bank and institutional securities firm headquartered in New York.  The firm provides clients with capital markets and financial advisory services, institutional brokerage, securities research, and asset management.  This includes mergers and acquisitions, restructuring, and other financial advisory services. Capital One Investing (formerly Capital One ShareBuilder) is an online brokerage and investment firm with its headquarters in McLean, Virginia.  Capital One Investing is a full-service brokerage offering a range of investment services including advised accounts and fully self-directed digital accounts.  Capital One Investing allows investors to easily buy stocks, options, mutual funds, and exchange-traded funds as partial shares via the ShareBuilder Investment Plan, PortfolioBuilder and Fund Evaluator, a digital tool to help investors pick which funds sold on Capital One’s online platform are best for them.  Real-time trading is also available online, on mobile devices, and via telephone.  Capital One Investing provides an award-winning toolset, extensive research and customer service and analysis tools.  Financial Advisors are available in Capital One locations and on phone through Advisor Connect. Wachovia Securities was the trade name of Wachovia's retail brokerage and institutional capital markets and investment banking subsidiaries.  Following Wachovia's merger with Wells Fargo and Company on December 31, 2008, the retail brokerage became Wells Fargo Advisors on May 1, 2009 and the institutional capital markets and investment banking group became Wells Fargo Securities on July 6, 2009. CLSA Ltd. (formally Credit Lyonnais Securities Asia) is a brokerage and investment firm focused on institutional brokerage, investment banking and asset management for corporate and institutional clients around the world.
Answer: Gary Coull