Valmont Industries Inc. shares rocketed more than 13% in early trading Tuesday after the infrastructure and agriculture products maker posted stronger-than-expected first-quarter results and raised its full-year 2026 earnings guidance, highlighting robust demand in North American utility markets and effective pricing strategies.

At 9:59 a.m. EDT, Valmont (NYSE: VMI) stock had climbed to $465.84, up $55.77 or 13.60% from Monday's close. The surge followed the company's pre-market release of Q1 2026 financial results, which showed record earnings per share and margin expansion driven primarily by its Infrastructure segment.