Among single stocks, Nike Inc NKE.N fell 2.6% after it forecast first-quarter revenue below Wall Street expectations. It helped that Treasury yields fell in response to cooling inflation, said Burns McKinney, portfolio manager at NFJ Investment Group in Dallas, Texas. Small cap stocks were also attracting attention with the Russell 2000 index .RUT closing up 0.4% in its fifth straight day of gains, its longest winning streak since the five sessions ending March 3.