Snapback rally yday in $XLV &amp; Pharmas held largely where they needed to &amp; now have begun to bounce-  This should help laggards like $MRK, $PFE which have been hard hit lately - Expect a challenge of recent highs and move above-  HEALTHCARE is 2nd largest i $SPX at 14.4%, so impt https://t.co/bhLVKnRAnw