Among the largest underlying components of XES, in trading today Basic Energy Services Inc ( NYSE: BAS) is off about 0.6%, Patterson-UTI Energy Inc. ( NASD: PTEN) is trading flat, and Hercules Offshore Inc ( NASD: HERO) is lower by about 1.7%.

FORBES: Notable ETF Outflow Detected - XES, BAS, PTEN, HERO