U.S. stock benchmarks headed lower Tuesday morning, giving up some of Monday's gains, amid fresh concerns that the new omicron strain of coronavirus is more resistant to the current batch of vaccines. Moderna /zigman2/quotes/205619834/composite MRNA -1.68% Chief Executive Stéphane Bancel told the Financial Times in an interview. The Dow Jones Industrial Average /zigman2/quotes/210598065/realtime DJIA +0.60% was down 0.8%, the S&P 500 index /zigman2/quotes/210599714/realtime SPX +0.16% declined 0.6% at 4,627, while the Nasdaq Composite Index /zigman2/quotes/210598365/realtime COMP -0.47% retreated 0.4% at 15,717. The 10-year benchmark Treasury note was yielding 1.44%, down from 1.529% on Monday at 3 p.m. Eastern Time.





