Merck is looking primed for a run into the $90's or higher after breaking 2 years of accumulation on the weekly chart. Ideally I want to see this hold the $84 support level and then bounce back through the all time high's.
There is also huge call flow the past two days. One option chain that is getting some attention is Nov 19 $90 calls.
Morgan Stanley also raised guidance from $88 to $90 and maintained equal-weight on the stock.