ATI (ATI) shares soared 5.3% in the last trading session to close at $104.73. The move was backed by solid volume with far more shares changing hands than in a normal session. This compares to the stock's 1.5% gain over the past four weeks.The rally appears to reflect optimism over ATI’s strong momentum in the aerospace and defense sectors, which is driving its top line and margins. ATI is also expected to benefit from the recent appointment of James Robert Foster as the Senior Vice President, Finance and C ...