Shares of United States Antimony fell after the mineral producer lowered its full-year revenue outlook, as second-quarter profit and revenue fell.
The stock was down 22% to $5.17 in recent trading, but has risen 3% since the start of the year.
The company reported net income of $108,415 compared with $179,680 a year earlier.
Revenue fell to $7.93 million from $10.5 million a year earlier, as average selling price declined for antimony.
The company lowered its full-year guidance to between $60 million and $75 million from $125 million, citing the decline in market prices and its view of second-half production and shipment cadence.