Matrix Service (MTRX) shares soared 6.8% in the last trading session to close at $14.34. The move was backed by solid volume with far more shares changing hands than in a normal session. This compares to the stock's 9.2% gain over the past four weeks.The surge can be attributed to Matrix’s specialization in providing engineering, infrastructure, construction and maintenance services to the energy industry. Notably, the company’s Utility and Power Infrastructure services includes LNG Peak Shaving Facilities ...