Willdan Group (WLDN) shares ended the last trading session 6.7% higher at $41.12. 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 4.5% gain over the past four weeks. The stock is gaining from the company's geographic expansion into high-growth states and its continuous efforts to diversify and grow in commercial sectors, especially data centers. Additionally, the company has plans to drive further growth through ac ...