According to reports, Pfizer is in talks to acquire rival drug maker Wyeth. The merger deal could be worth more than $60 billion, according to sources close to the matter.

Clues suggest that merger talks between two oil giants, BP and Royal Dutch Shell, to create the world's biggest corporate titan, eclipsing ExxonMobil are underway.

Creates Europe’s leading diversified exchange group

CME, the world's largest and most diverse derivatives exchange, has issued the following statement in response to press inquiries:

Chicago Mercantile Exchange Holdings Inc. (NYSE/Nasdaq: CME) and CBOT Holdings, Inc. (NYSE: BOT) announced on June 11th that they have received clearance from the U.S. Department of Justice to complete their proposed merger without conditions.

Chicago Mercantile Exchange Holdings Inc. and CBOT Holdings, Inc. to Begin Mailing Joint Proxy Statement/Prospectus for Vote on Proposed Merger

CBOT Full Members Holding CBOE Exercise Rights Would Receive $500,000 in Value Per Exercise Right, Resolution of Exercise Rights Dispute Removes Barrier to CBOE Demutualization and Resolves CBOT Litigation

Alltel Corp. (NYSE: AT) announced on May 21st that it has signed a definitive merger agreement to be acquired by TPG Capital and GS Capital Partners ("GSCP"), in a transaction valued at approximately $27.5 billion.

Big high-tech news today is the possible merger of Microsoft and Yahoo. The rumour goes that they are in an early discussion. There has been speculation around the possibility. There were talks about a merger two years ago. Things have changed. Google and Apple have been making the headlines lately.