Why Regeneron Pharmaceuticals, Sears Holdings, and Shake Shack Slumped Today

Friday was another record day for the stock market, with the Dow climbing above 19,999 without quite making it the final point higher to 20,000 before falling back toward the end of the day. A mixed jobs report seemed to give investors the perfect balance between economic strength and weakness, and market sentiment remained positive to frustrate those who had anticipated a quick pullback from the post-election rally once 2017 began.