BEDFORD, Mass. (

TheStreet

) -- Private-equity firms Warburg Pincus and Silver Lake Partners are close to buying financial-market data provider

Interactive Data

( IDC) for $3.1 billion, a report says.

The leveraged buyout deal could be announced Monday, people familiar with the matter told the

Wall Street Journal

. Interactive Data is controlled by

Pearson

(PSO) - Get Report

, the U.K. publisher.

An Interactive Data acquisition would be among the largest LBOs struck since credit markets collapsed in mid-2007, the

Journal

notes.

Two other private-equity teams, one including Kohlberg Kravis Roberts and CVC Capital Partners and the other made up of Bain Capital and Advent International, also bid for Interactive Data, the people said, the

Journal

reports.

Neither Interactive Data or Pearson ould be reached for comment by the newspaper..

Pearson, publisher of the

Financial Times

, said earlier this year it was reviewing strategic alternatives for Interactive Data, of which it owns a 61% stake.

Interactive Data closed Friday at $33.47.

-- Written by Joseph Woelfel in New York.

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