Primoris (PRIM), Construction Peers Jump as Oil Sinks, Yields Fall on Iran Peace Progress

Construction and maintenance stocks, led by Primoris Services Corp. (PRIM), surged on May 26, 2026, after WTI crude fell 4.7% and Treasury yields dropped amid U.S.-Iran peace talks. Lower oil reduces fuel and asphalt costs for heavy equipment fleets, while cheaper borrowing cuts financing costs for utilities and data center developers backing long-cycle infrastructure projects. Peer companies MasTec, Quanta Services, MYR Group, EMCOR, and Comfort Systems also rose, buoyed by the macro shift and AI-driven electrical grid demand. Primoris, a volatile stock with 23 moves exceeding 5% in the past year, traded at $128.04, down 2% year-to-date and 36.9% below its 52-week high of $202.92. The market views the geopolitical development as supportive but not transformative for these contractors’ multi-year backlogs.