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CFTC Clarifies How Crypto Collateral Is Valued When Prices Drop
The CFTC’s updated FAQs and Staff Letter 26-05 reaffirm existing rules for using crypto as margin, emphasizing haircuts, valuation methods, and who must cover shortfalls when token prices fall.

The Commodity Futures Trading Commission (CFTC) released an updated FAQ on September 24, 2026, focusing on tokenized customer‑fund investments and blockchain record‑keeping. The update does not create a new, unrestricted right to pledge any cryptocurrency as margin; it points back to existing guidance, including Staff Letter 26-05 and earlier FAQs.
Key distinctions in margin calculations
When a customer posts a digital asset as margin, three separate calculations may apply:
- Futures commission merchant (FCM) valuation – determines how much of the customer’s crypto can be counted toward margin, using a minimum 20% haircut for most non‑stablecoin assets.
- Derivatives clearing organization (DCO) haircut – each clearinghouse sets its own initial‑margin haircut and reviews it at least monthly.
- Proprietary inventory haircut – the intermediary’s own holdings may be subject to a separate discount.
How a price decline affects recognized collateral
Consider a $100,000 bitcoin position with a 20% haircut. The recognized value starts at $80,000. If bitcoin’s market price falls 15% to $85,000, the recognized value becomes $68,000 (20% of the new price). The haircut itself does not change; the decline in market price reduces the collateral value.
If the futures position requires $75,000 margin, the account moves from a $5,000 excess to a $7,000 shortfall, illustrating how a token’s price drop can trigger a margin deficiency.
Stablecoins and other assets
For payment stablecoins, the FCM must determine fair market value and apply an appropriate haircut based on its risk policy. A stablecoin trading below its peg does not automatically retain full regulatory value.
No automatic margin calls
The CFTC guidance makes clear that a margin call is not triggered solely by a token’s price movement. Account equity, overall exposure, and the firm’s house‑margin rules all factor into any required cash call.
Regulatory context
Staff Letter 26-05 is a no‑action position that protects FCMs acting within the specified conditions but does not amend the Commodity Exchange Act’s segregation rules. The September FAQ update merely reiterates the scope of existing collateral permissions and does not expand eligibility to all digital assets.
Source & attribution
News Source
- Publisher
- crypto.news
- Original date
- September 25, 2026, 10:53 AM
- Original headline
- Crypto can serve as derivatives collateral. What happens when its price falls?