Shares of Anheuser-Busch Cos. (NYSE: BUD) were trading up more than 6 percent at the open of trading Thursday after the the announcement by InBev that it was offering $65 a share to take over the St. Louis-based brewer.

 A-B shares spiked at the opening bell, hitting the $62 level out of the gate. Shares leveled off after the open and were trading around $61.85 at 10:50 a..m. Shares closed Wednesday at $58.35 prior to the announcement of the much anticipated offer. The $46.3 billion all-cash offer would end A-B’s 156-year run as an independent company, creating a global entity that would sell about one-fourth of the world’s beer.

Shares of InBev in afternoon trading in Europe were up about 9 percent at 51 euros.

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