05:23 AM EDT, 05/05/2026 (MT Newswires) -- (Updates with the stock move in the headline and the first paragraph.)

Sterling Infrastructure's (STRL) shares were up 21% in Tuesday's premarket activity after the company overnight reported a stronger-than-expected surge in Q1 earnings and sales, and guided sales above market expectations.

The company on Monday reported Q1 adjusted earnings of $3.59 per diluted share, up from $1.63 a year earlier.

Analysts polled by FactSet expected $2.28.

Revenue for the quarter ended March 31 was $825.7 million, up from $431 million a year ago.

Analysts surveyed by FactSet expected $603.6 million.

The company expects full-year 2026 revenue between $3.70 billion and $3.80 billion.

Analysts expected $3.10 billion.