PubMatic, Inc. (PUBM) shares ended the last trading session 5.2% higher at $17.19. The jump came on an impressive volume with a higher-than-average number of shares changing hands in the session. This compares to the stock's 11.5% gain over the past four weeks.PubMatic is riding on an expanding clientele and strong partner base. It recently inked a partnership with DISH Media to accelerate programmatic demand for Sling TV.This company is expected to post quarterly earnings of $0.19 per share in its upcoming ...