On the Nasdaq 100 the largest gainer was Trip.Com Group Ltd TCOM.OQ, which rose 3.8%, while the largest decliner was Comcast Corp CMCSA.OQ, down 5.5%. By Echo Wang May 17 (Reuters) - Wall Street ended lower on Monday, weighed down by tech shares as signs of growing inflation worried investors about the potential for tighter monetary policy. The S&P 500 scored its biggest one-day jump in more than a month on Friday as investors picked up beaten-down stocks following a pullback earlier in the week on worries about inflation and a sooner-than-expected tightening by the U.S. Federal Reserve.