Zeta Global Holdings (ZETA) shares ended the last trading session 6.2% higher at $15.9. 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 18.9% gain over the past four weeks.The shares rose on renewed investor interest in AI marketing tech, supported by strong analyst ratings and momentum from solid prior earnings and growth outlook.This cloud-based marketing technology company is expected to post quarterly earnings ...