In This Story CMCSA -0.92% NVDA -0.70% SMCI -7.19% MSTR -10.86% CHGG -27.57% The S&P 500 and Nasdaq Composite indexes fell sharply Tuesday after February consumer confidence missed expectations, coming in at 98.3 compared with the consensus of 103.0, and down from 105.3 in January. It was the worst decline since August. U.S. government debt rallied and the dollar weakened. Suggested Reading A recall of supplemental shakes over listeria fears is linked to 12 deaths Walmart's bold bet to beat