Cowen Group, Inc. Announces Second Quarter 2011Earnings Conference Call

Jul 25 2011

NEW YORK, Jul 25, 2011 (BUSINESS WIRE) —

Cowen Group, Inc. (NASDAQ: COWN) will host a conference call on August
5, 2011 at 9:00 AM Eastern Time to discuss the Company’s financial
results for the second quarter of 2011.

Investors can participate in the conference call by dialing
1-866-356-4279 domestic or 1-617-597-5394 international. The passcode
for the call is 38607829.

For your convenience, the conference call can be replayed in its
entirety beginning at 12:00 PM Eastern Time on August 5, 2011 through
August 12, 2011. If you wish to listen to the replay of this conference
call, please dial 1-888-286-8010 domestic or 1-617-801-6888
international and enter passcode 47537753.

The conference call will also be broadcast live through a link on the
Investor Relations page on the Cowen website at http://www.cowen.com.
Please go to the website at least 15 minutes prior to the call to
register, download and install any necessary audio software. A replay of
the broadcast will be available on the Investor Relations page of the
Cowen website.

About Cowen Group, Inc.

Cowen Group, Inc. is a diversified financial services firm and, together
with its consolidated subsidiaries, provides alternative investment
management, investment banking, research, and sales and trading services
through its two business segments: Ramius and its affiliates makes up
the Company’s alternative investment management segment, while Cowen and
Company is its broker-dealer segment. Its alternative investment
management products, solutions and services include hedge funds,
replication products, mutual funds, managed futures funds, fund of
funds, real estate, health care royalty funds and cash management
services. Cowen and Company offers industry focused investment banking
for growth-oriented companies, domain knowledge-driven research and a
sales and trading platform for institutional investors. Founded in 1918,
the firm is headquartered in New York and has offices located in major
financial centers around the world.

SOURCE: Cowen Group, Inc.

Cowen Group, Inc.
Peter Poillon, 646-562-1983
Director Investor Relations and Corporate Communications
peter.poillon@cowen.com