Daniel Altman

Founded in 2000, Bradesco Securities, Inc. is a wholly-owned subsidiary of the Brazilian brokerage firm Banco Bradesco SA (NYSE: BBD) in Brazil.. They operate as a broker dealer in the US, focusing on the intermediation of stock share purchases and sales. The firm is also authorized to trade in bonds, commercial paper and certificates of deposit, among others and to provide investment advisory services. They are located in New York City.

Zweig-DiMenna Associates LLC (Zweig-DiMenna) is an independent, SEC-registered investment advisor and hedge fund manager headquartered in New York City. The firm was founded by Martin Zweig and Joseph DiMenna in 1983. Zweig-DiMenna provides discretionary investment advisory services primarily to several privately offered unregistered funds and persons or entities on a managed account basis.

Bear, Stearns & Co., Inc. is a global investment banking, securities trading and brokerage firm located in New York City with additional offices in Dallas, Boston and San Francisco. The firm is a subsidiary Bear Sterns Cos., Inc. (NYSE: BSC). Their equity research team consists of senior analysts located throughout the world. In addition to domestic coverage, they have research teams focusing on Latin America, Asia and Europe. The analysts use a bottom-up approach to stock selection. The Bear Stearns fixed-income research department provides coverage of every sector of the fixed-income universe. The financial analytics and structured transactions group (F.A.S.T) provides investment research, fixed-income portfolio management and analytical systems, trading technology and general financial expertise. The group also provides a broad range of services to financial institutions including asset-liability management, balance sheet restructuring, receivables-based financing analysis, security and portfolio analysis, peer analysis, and historical and real-time market-based information.