Summary: It could be a mega-merger Monday morning, if Actavis announces a deal that could be worth $65 billion to acquire Allergan, the maker of Botox that has been pursued all year by activist Bill Ackman and Valeant. Details are sketchy before the bell but the market expects a deal, possibly as early as this morning. Plus, we're expecting earnings from Tyson Foods and Urban Outfitters. And, Jim Cramer is trying on a new stock -- he likes the price that PE firm Advent International paid to buy in and Cramer is buying shares in the mid-$40s, looking for near-term gains at a discount.
