Albemarle (ALB) shares ended the last trading session 7.2% higher at $70.22. 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 5.1% gain over the past four weeks.Albemarle shares rose after a Jefferies analyst slightly lowered the price target from $85 to $84 while maintaining a “Buy” rating. This signals continued confidence in the stock’s growth potential despite the modest revision.This specialty chemicals company ...