Lehman Brothers is a primary dealer in the U. S. Treasury securities market.

莱曼兄弟公司是美国国库证券市场的主要经销商。

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Plaintiff attorneys filed 1, 463 cases for securities dealer association arbitration in January and February, up 23% in a year.

FORBES: Magazine Article

Jenny Quyen Ta , founder of Titan Securities, a broker-dealer in Dallas, was disciplined in 2010 for alleged misconduct that included using her Twitter account to tout stock in Advanced Micro Devices Inc.

WSJ: Wall Street Battles States on Social-Media Protections

Madoff, 70, operated the advisory business separately from his Bernard L. Madoff Investment Securities, a securities broker dealer with its principal office in New York City, the Department of Justice said.

CNN: Former Nasdaq chairman charged with fraud