08:54 AM EST, 02/03/2025 (MT Newswires) -- Bitfarms ( BITF ) , a global Bitcoin and vertically integrated data center company, on Monday fell about 8% in U.S. pre-market trading after the company lowered its guidance by 14% to 18 EH/s (ExaHash) in the first half of 2025, due to the underperformance of some T21 miners.

"We are focused on resolving the T21 underperformance to drive better performance across all our sites," said Bitfarms ( BITF ) Chief Executive Ben Gagnon. "In order to accommodate potential HPC integration into our Sharon location, the construction timeline is being pushed back from 2025 to 2026 reducing our 2025 YE energized capacity by 80 MW. When combined with the Yguazu sale, our 2025 YE energized capacity is 675 MW."

The company said operational hashrate grew by 19% in January to 15.2 EH/s with the energization of two additional sites and further miner deployments at the Stronghold sites. Bitfarms ( BITF ) added that miner deliveries are ongoing in February with installations scheduled through the second quarter. When all miners are successfully deployed, the company will have 21 EH/s installed across 15 sites in 4 countries.

Average operational hashrate in January increased 1% to 11.2 EH/s, due to frequent winter curtailment and increases in hashrate energized later in the month. "We expect to continue driving further increases in hashrate and performance through ongoing miner deployments and continued data center optimization initiatives, while taking advantage of improving weather conditions as we move into the shoulder months," the company said in a statement.

The company added 218 BTC in January, bringing Treasury to 1,152 BTC, up from 934 BTC in December. Bitfarms ( BITF ) sold 42 of the 201 BTC earned as part of the company's regular treasury management practice for total proceeds of US$4.1 million in January.

U.S.-listed shares of the company were last seen down US$0.11 at US$1.3397 in pre-market trading.

Shares closed down $0.030 or 1.4%, to $2.12 on Friday on the Toronto Stock Exchange.