On the "short list" for today all 3 moving down MRK, C, and even the invincible and impregnable KKD. KKD is now in an intraday resistance area of the declining 20 and 50 ma and should catapult down from there (49.25) to retest today's lows.
MRK after a tiny pause continues down to retest 53 with 52.50 next support.