Carl Quintanilla, David Faber & Jim Cramer discuss the record rally for stocks, Wall Street dismissing potential virus headwinds as both the Dow and S&P hit all-time highs, before pulling back. Plus, a tale of two tech stocks: Twitter soaring on strong user numbers, Peloton plummeting on a widening loss and slowing revenue. And Casper Sleep set to make its debut at the NYSE, pricing at the low end of the range, and far from its unicorn dreams.