Salesforce.com Inc CRM.N fell 3.3% after UBS lowered its rating on the stock to "neutral" from "buy". Interest-rate sensitive growth shares were also under pressure from a recent rise in U.S. Treasury yields, sparked by growing angst towards the prospect of interest rate hikes by the Fed to curb inflation. "With interest rates expected to rise this year, there is a likelihood that tech stocks could end up feeling some more pressure," said Sam Stovall, chief investment strategist at CFRA Research in New York.