Baystreet Staff - Wednesday, January 4, 2017 Mistras Group (MG) Gains with Earnings on Way Mistras Group Inc (NYSE: MG) shares gained 1.6% to $26.12 as the company is estimated to post its quarterly earnings at $0.31 per share on revenue of $182.98 million. Share volume was 29,000, compared to an all-day average of 117,000