Duff & Phelps Corporation (NYSE: DUF), a leading independent financial advisory and investment banking firm, today announced that it will issue a press release reporting its results for the quarter ended March 31, 2012 after market hours on Tuesday, April 24, 2012. A conference call for investors and analysts will begin at 5:00 p.m. EDT and will include prepared remarks by Noah Gottdiener, chairman and chief executive officer, and Patrick Puzzuoli, chief financial officer.

The call can be accessed in the following ways:

• By telephone: For participants who wish to take part in the question-and-answer portion of the call, the telephone dial-in number in the United States is +1 866-314-4865. The telephone dial-in number for participants outside the United States is +1 617-213-8050

• A live webcast and replay will be available on the Duff & Phelps website: http://ir.duffandphelps.com

About Duff & Phelps

As a leading global financial advisory and investment banking firm, Duff & Phelps balances analytical skills, deep market insight and independence to help clients make sound decisions. The firm provides expertise in the areas of valuation, transactions, financial restructuring, alternative assets, disputes and taxation, with more than 1,000 employees serving clients from offices in North America, Europe and Asia. Investment banking services in the United States are provided by Duff & Phelps Securities, LLC; Pagemill Partners; and GCP Securities, LLC. Member FINRA/SIPC. M&A advisory services in the United Kingdom and Germany are provided by Duff & Phelps Securities Ltd. Duff & Phelps Securities Ltd. is authorized and regulated by the Financial Services Authority. Investment banking services in France are provided by Duff & Phelps SAS. For more information, visit www.duffandphelps.com. (NYSE: DUF)

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