Core Laboratories (CLB) shares ended the last trading session 6% higher at $10.95. 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 16.6% loss over the past four weeks.Core Laboratories’ share price surged yesterday as global oil prices rebounded on the back of renewed optimism over U.S.-China trade talks, with President Donald Trump confirming plans to meet Chinese President Xi Jinping and both countries expressing ...