LONDON, PARIS and NEW YORK, December 2 /PRNewswire/ --     Prime Source, a NYSE Euronext company, has chosen Asset
Control's AC Plus financial and reference data management software to support
the growing data needs of its independent valuation service. Prime Source
will use AC Plus to bring its data management to a state-of-the-art level for
the management of financial data sources and customers' portfolios.

Launched in February 2008, Prime Source provides financial
institutions with a comprehensive portfolio valuation service covering a wide
range of asset classes and financial instruments, from plain vanilla to the
most complex structured products and illiquid securities.

Marie-HélÚne Crétu, CEO of Prime Source , said, "As our
customers expand into new markets and geographies to trade a growing list of
complex financial instruments, we must ensure that the way we handle our
multiple data sources is the most efficient. In this matter, Asset Control's
AC Plus will allow Prime Source to stay ahead of the industry's trends by
ensuring reliability and transparency in the data management and quality in
the audit trail."

Phil Lynch, Asset Control's president and chief executive
officer, said, "Asset Control has helped numerous global organizations to
manage the increasing collection of data required to grow their businesses,
and we are pleased to help Prime Source better manage and deploy data as the
service evolves."

About Prime Source

Prime Source, a NYSE Euronext company, is an independent valuation agent
empowering customers to make an educated choice on the valuation of their
multi asset-class portfolios.

It is a wholly-owned subsidiary of NYSE Euronext, the world's leading,
most liquid and diverse exchange group, listed in New York and Paris and
recognized for its independence and broad-based shareholding structure.

Prime Source operates a streamlined valuation service, covering a wide
range of financial instruments from plain vanilla to complex structured
products and illiquid securities. It includes an actual data management and
quantitative analysis expertise to provide a comprehensive service to any
financial institution needing a valuation of a financial instrument or an
independent valuation of a portfolio.

Its secure and reliable process is aligned with accounting and regulatory
recommendations and standards and addresses customers' valuation needs. This
service represents a true added value for any customer seeking an external
valuation process, ensuring full confidentiality and neutrality.

Prime Source is committed to foster innovation and improve the overall
confidence in the markets by building transparency and reducing operational
risks for financial institutions. This service clearly introduces a new
dynamic in the rapidly growing field of portfolio valuation, capitalizing on
NYSE Euronext's existing solutions.

For more information, please visit http://www.nyxprimesource.com

About Asset Control

Asset Control provides centralized data management solutions
for financial institutions worldwide. From business-entity to firm-wide
projects, Asset Control offers a strategic reference and market data platform
that delivers the accuracy, consistency and relevancy firms need to reduce
costs and risk, manage evolving compliance needs, and accelerate the delivery
of new products and services. A Fidelity Ventures company, Asset Control
serves some of the world's most successful financial institutions. For more
information, visit http://www.asset-control.com.

Trademark Information: Asset Control, the Asset Control logo and AC Plus
are trademarks or registered trademarks of Asset Control Systems, Inc. or its
subsidiaries or affiliates in the U.S. and/or other countries. All other
trade names are trademarks or registered trademarks of their respective
holders.