Core Scientific, Inc. (Nasdaq: CORZ) filed its Form 10-Q on July 28, 2026, disclosing bitcoin holdings falling to 848 BTC. The filing shows the miner accelerating its shift toward AI and high-performance computing (HPC) data-center colocation.
Key Takeaways
- Core Scientific’s bitcoin holdings dropped from 2,537 BTC on December 31, 2025, to 848 BTC on June 30, 2026, a 66.6% decline.
- The miner generated $208.2 million in proceeds from digital-asset sales over the six months ended June 30, 2026.
- Core Scientific cut bitcoin mining output by 53% in Q2 2026 compared to a year earlier, as average bitcoin price fell 27%.
- A subsequent AMD partnership adds roughly 530 MW of contracted capacity across five sites, worth more than $14 billion in potential base revenue.
- Q2 net loss reached $(1,155.3) million, while total liabilities stood at $7,676.8 million against a $(2,419.4) million stockholders’ deficit.
What Happened?
The shift away from bitcoin mining shows up clearly in the filing, according to Core Scientific’s own SEC Form 10-Q disclosures. Bitcoin holdings fell from 2,537 BTC to 848 BTC between December 31, 2025, and June 30, 2026.
This pattern tracks against Global Crypto Adoption Data, per Core Scientific’s own filing. The retreat from self-custody runs counter to the broader institutional adoption story, even as it reflects one miner’s specific balance-sheet pressure.
The filing also discloses $208.2 million in proceeds from digital-asset sales tied to self-mining revenue over the same six-month window. That figure lines up with a parallel operational shift: mining output fell 53% in Q2 2026 and 49% across the first half, even as average bitcoin price declined 27% and 23% over the same periods. Selling more while mining less points to a business winding down self-mining in favor of contracted infrastructure revenue.
JUST IN: Publicly traded AI data center provider Core Scientific $CORZ increased its holdings by 301 #Bitcoin and now holds a total of 848 BTC.
— BitcoinTreasuries.NET (@BTCtreasuries) July 28, 2026
🔸Bitcoin 100 Ranking: 49🪜🔸 pic.twitter.com/lCkIvcROyG
The Bitcoin Sell-Down and the Mining-Asset Writedown
Fair value of Core Scientific’s bitcoin fell from $222.0 million at the end of 2025 to $49.7 million by mid-2026, the first sign of the retreat from mining. The second sign sits in the impairment line: the company recognized $266.5 million in impairment charges on mining equipment and infrastructure during Q1 2026, citing declining bitcoin prices and hashprice.
| Metric | Dec 31, 2025 | June 30, 2026 |
|---|---|---|
| Bitcoin held | 2,537 BTC | 848 BTC |
| Cost basis | $254.7 million | $65.5 million |
| Fair value | $222.0 million | $49.7 million |
Writing down mining hardware while simultaneously selling the bitcoin that hardware produced is not a routine quarter. It reads as a company actively de-risking a business line it no longer treats as core, ahead of a larger capacity reallocation toward colocation customers under the disclosure regime already noted above.
The AMD Deal and the Colocation Math
Core Scientific’s earnings release describes a new AMD partnership, disclosed July 27, 2026, covering 2.5 GW of leasable capacity, anchored by 15-year agreements for approximately 530 MW across five sites and more than $14 billion of potential base contracted revenue. Colocation expanded exactly where the mining side contracted.
Total leased capacity across the portfolio now stands wider: the company reports approximately 1.1 GW under lease, representing more than $24 billion of potential contracted revenue, with 437 MW already billing as of mid-July, generating approximately $635 million in average annualized colocation GAAP revenue. Against that, Q2 2026 colocation revenue reached $136.7 million of $164.2 million in total revenue, versus $21.5 million from digital-asset self-mining. Colocation is now the dominant revenue line, not a side business.
In the filing, Core Scientific’s management described the objective directly: increase the long-term value of our infrastructure platform relative to its historical use in digital asset mining operations.
Net Loss, the Deficit, and the $3.3 Billion Notes
Core Scientific posted a $(1,155.3) million net loss in Q2 2026, a figure that carries a specific mechanical cause. That scale points to a non-operating driver: the filing’s disclosed warrant-liability swing, which can dominate net income.
The net loss also lands against a backdrop of falling crypto exchange market on bitcoin’s average price, which compounds the pressure on any miner still holding treasury exposure.
The balance sheet also shows the cost of that capacity buildout: total liabilities of $7,676.8 million against a stockholders’ deficit of $(2,419.4) million. Financing the AI pivot required new leverage: a $3.3 billion senior secured notes offering priced at 7.75% and maturing in 2031 now anchors the debt structure.
CoinLaw’s Takeaway
Reading the bitcoin figure alone misses what Core Scientific’s Q2 2026 filing shows. This is not a miner having a rough quarter. It is a data center operator liquidating a legacy asset to fund a different business.
The sale proceeds and the output cut detailed above are the same decision viewed from two angles: mining capacity that once produced and held bitcoin is being repointed toward contracted AI and HPC customers, and the treasury is being drawn down to help bridge the gap while that capacity comes online.
The AMD agreement, layered onto the deficit and debt above, sets up a clear test: whether leased capacity converts into billed revenue fast enough to service the new notes without further bitcoin sales.
