Intraday Losers

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