$MG is one of biggest winner #stocks today. read more:

Mistras Group Inc (symbol: MG) was one of the biggest winners of the
trading day today (2016-01-07), gaining 17.69%. The number of shares that
changed hands was 458,288, or about 3.3 times the average daily volume in
the stock.
The closing price was $21.95, amounting to a market cap of $633,500,000,
about -3.56% off the highest price in the last 12 months. The stock has
been trading at a range between $12.65 and $22.76.
MG is in the Military/Government/Technical industry, part of the Consumer
Services sector. It first went public in 2009.
Looking at its valuation, the stock is now trading at 30.92 times earnings.