December 26, 2025
Bitcoin mining in 2025: IREN claims the crown as Bitdeer's stock trails the pack thumbnail
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Bitcoin mining in 2025: IREN claims the crown as Bitdeer’s stock trails the pack

Diversification into AI and HPC infrastructure drove sharp outperformance for miners, while pure-play bitcoin miners lagged.”, — write: www.coindesk.com

Bitcoin mining in 2025: IREN claims the crown as Bitdeer’s stock trails the packDiversification into AI and HPC infrastructure drove sharp outperformance for miners, while pure-play bitcoin miners lagged. Dec 26, 2025, 4:00 pm

As 2025 draws to a close, bitcoin BTC$87,142.18 faced a tough year, down about 7% year-to-date, while gold, the S&P 500 and technology stocks continue to hit all-time highs.

As a result, public bitcoin mining stocks have shown stark contrasts, driven largely by diversification into artificial intelligence (AI) and high-performance computing (HPC) infrastructure. The standout performers have been companies aggressively pivoting to AI.

IREN (IREN) led with a massive +300% year-to-date (YTD) gain, fueled by major GPU cloud deals and Microsoft’s backing.

Cipher Mining (CIFR) followed strongly at +230%, expanding AI hosting partnerships specifically with Fluidstack.

Hut 8 (HUT) also soared, up around +139%, capped by its recent AI announcement: a $7 billion, 15-year AI data center lease for 245 MW at its River Bend site in Louisiana.

In contrast, three of the four largest bitcoin holders among public miners underperformed the AI/HPC miners.

Marathon Digital (MARA), the top BTC hodler among miners with 53,250 BTC, dropped -44% YTD. CleanSpark (CLSK) (13,011 BTC) and Riot Platforms (RIOT) (19,324 BTC) saw modest gains of 16% and 32% respectively, without aggressive AI diversification until much later in the year.

Core Scientific (CORZ) remained independent after shareholders rejected a $9 billion all-stock takeover bid from CoreWeave in October, betting on higher standalone value amid AI demand. Its shares are up just 9% year-to-date.

Bitdeer Technologies (BTDR), the biggest underperforming mining company in the sector, is down around 50%. The bulk of the losses came after its Q3 earnings announcement, when the company reported a larger-than-anticipated net loss and disclosed a delay to its ASIC chip, adding uncertainty around its AI expansion plans.

This year underscored a clear trend: miners repurposing sites for AI data centers which outperformed pure-play bitcoin operators.

AI Disclaimer: Parts of this article were generated with the assistance from AI tools and reviewed by our editorial team to ensure accuracy and adherence to our standards. For more information, see CoinDesk’s full AI Policy.

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