Intraday Losers

Kraton Performance Polymers KRA is trading down over 30% after reporting Q2 earnings.
ExamWorks EXAM is trading down over 30% after reporting Q2 earnings.
Kforce KFRC is trading down over 30% after being cut to Neutral at SunTrust Robinson.
ION Geophysical IO is trading down over 29% after reporting Q2 earnings.
Consolidated Graphics CGX is trading down over 19% after reporting Q2 earnings.
Black Box BBOX is trading down over 14% after reporting Q1 earnings.
SPX Corp SPW is trading down over 14% after reporting Q2 earnings.
Approach Resources AREX is trading down over 13% after reporting Q2 earnings.