Fortitude Mining Holdings disclosed in an Oct. 5 expansion update that it drew approximately $8.4 million worth of Zcash under an amended credit facility with Digital Currency Group and then
Fortitude Mining Holdings disclosed in an Oct. 5 expansion update that it drew approximately $8.4 million worth of Zcash under an amended credit facility with Digital Currency Group and then liquidated it for aggregate proceeds of approximately $8.3 million, according to a DEFA14A filing submitted to the U.S. Securities and Exchange Commission.
What the Oct. 5 disclosure actually shows
The SEC filing states that Fortitude drew 5,790.4798 ZEC under the amended DCG credit facility before executing the liquidation. For related coverage, see Eclair v0.14.4 Blocks Forged Browser Commands to ACINQ API.
Borrowed ZEC liquidated
5,790.4798 ZEC
Disclosed as a draw under Fortitude's amended DCG credit facility before liquidation.
Fortitude reported aggregate proceeds of approximately $8.3 million from the sale. The difference between the draw value and the proceeds reflects the spread between valuation at transfer under the facility terms and the actual execution price. For related coverage, see Bitcoin Under Pressure as Trump Iran Strike Reports Emerge.
Reported liquidation proceeds
Approximately $8.3 million
The SEC-filed communication distinguishes these completed proceeds from a separate planned equipment-funding draw.
Critically, the amended DCG facility structures ZEC-funded loans as dollar obligations: the debt is denominated and repayable in U.S. dollars, with value set at the time of transfer under facility terms. That structure separates the ZEC draw mechanism from Fortitude's repayment obligation, which remains a fixed dollar liability regardless of where Zcash trades afterward.
Why selling borrowed assets draws scrutiny
When an entity sells borrowed assets rather than owned ones, it creates an obligation to return equivalent assets, or their cash equivalent under the applicable terms, to the lender. In Fortitude's case, the facility's dollar-denominated repayment clause means that obligation is settled in USD rather than in ZEC, which shifts the token-price risk profile relative to a standard crypto-collateralized loan.
The same Oct. 5 communication also described a separate, prospective $20 million ZEC-funded draw intended to fund a refundable deposit on next-generation mining equipment. That planned draw had not been completed at the time of the disclosure and should not be conflated with the $8.3 million liquidation that was already executed. As part of broader expansion plans, the filing also referenced a non-binding letter of intent for up to $100 million in BITMAIN next-generation equipment, with expected shipments starting in the second quarter of 2027 after final specifications and pricing are released.
The disclosures appear in SEC proxy materials filed in connection with a proposed all-stock transaction between Fortitude and HeartSciences. The filing explicitly labels the prospective equipment commitment and planned funding steps as forward-looking statements and says the communications are not intended to provide the basis for an investment decision. Broader institutional moves into digital-asset financing have amplified market attention on how mining companies structure crypto-backed debt.
Context: Zcash supply and current market conditions
Zcash supply is capped at 21 million ZEC, and 1.5625 ZEC enters circulation every 75 seconds as a block reward, meaning the 5,790.4798 ZEC Fortitude liquidated equals roughly 62 hours of total network issuance at the current reward schedule.
ZEC was trading at $1,160.85 at the time of writing, down approximately 4.7% in the prior 24 hours, with a market cap near $19.7 billion and 24-hour volume around $715 million. Independent mining research from Hashrate Index estimated, using ZEC at $1,185 and a 27.8 GSol/s network hashrate, that a stock Antminer Z15 Pro grossed $51.54 per day before power costs of $5.34 at $0.08/kWh, implying strong unit economics that explain the appetite for expanded capacity.
What to watch next
The disclosure leaves several material details unresolved: the precise timing of the ZEC liquidation, the counterparty or counterparties who absorbed the sale, the interest rate or fee structure on the DCG facility draw, and whether the planned $20 million draw for the refundable equipment deposit has since been executed. Future Fortitude SEC filings, particularly any amended proxy materials or 8-K updates tied to the HeartSciences transaction, are the most direct place to track those details. Separately, moves by other firms to structure crypto-linked preferred equity and expand digital-asset custody suggest that novel crypto-collateralized financing structures are drawing increasing institutional attention.
Disclaimer: This article is for informational purposes only and does not constitute financial or investment advice. Cryptocurrency and digital asset markets carry significant risk. Always do your own research before making decisions.
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