United States Antimony's stock experienced a pre-market plunge of 5.12% on Friday, as investors reacted negatively to the company's recently released first-quarter financial results.

The sharp decline was driven by the company reporting worse-than-expected earnings for the quarter. United States Antimony posted a quarterly loss of $0.08 per diluted share, which was significantly worse than the FactSet consensus estimate of a $0.02 loss. Revenue also fell short of expectations, coming in at $6.8 million compared to analyst estimates of $14.8 million, and representing a decline from the $7.0 million reported in the same period a year earlier.

Despite the weak first-quarter performance, the company reiterated its full-year 2026 gross revenue guidance of $125 million, which is roughly in line with analyst expectations. However, the substantial earnings and revenue miss for Q1 appears to have been the primary catalyst for the stock's sharp pre-market decline.