After all the speculation, it finally happened: there's a Microsoft (MSFT) offer on the table to acquire Yahoo (YHOO) for a mix of cash and stock valued at $44.6 Billion, which is about a 62% premium to Yahoo's current market valuation. Well.. current as of yesterday, when it closed at $19.18 - right now, pre-market it trades at $30.60, close to the offer price.
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