Who cares. Nobody, unless you're one of the folks getting a 20% surge today and a nearly 19% premium to the best level the stock has ever reached. In this case, the $28 billion deal, including assumed debt, will see Pittsburgh-based Heinz bought for $72.50 a share by Buffett's Berkshire Hathaway (BRK-A) and investment firm 3G Capital. Its highest-ever close was $61, a record set earlier this month and one that will be a distant memory by the end of trading Thursday.

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