I believe this dip is just about over... stock is oversold and due for a move over $90 within the next month. Of course it all depends on earnings as well.
Second buy just under $82.00 .... usually spread my buys over 2-3 day period. Will have 1 more entry on AMGN for my full position.
My average price is around $82.80 ... looking good so far! Nice move today.