The U.S. Commodity Futures Trading Commission (CFTC) has officially approved futures commission merchants (FCMs) to accept Bitcoin, Ethereum, and USDC as customer margin collateral. This move marks the first time that crypto assets have gained a formal regulatory pathway to serve as margin for derivatives in the U.S. traditional financial market.
CFTC Acting Chair Caroline D. Pham announced the news on December 8, 2025. The decision was implemented through three no-action letters, allowing FCMs to hold digital assets in customer accounts and use them as margin during a three-month initial pilot phase.
CFTC's Actual Authorization Details
The CFTC's staff letters 25-39, 25-40, and 25-41 provide no-action relief for FCMs accepting specific digital assets as margin collateral. In the initial phase, the pilot program covers Bitcoin (BTC), Ethereum (ETH), and USDC. Additionally, tokenized real-world assets, such as U.S. Treasury bonds and money market funds, may also qualify for acceptance if they meet enforceability, custody, and valuation standards.
It is important to emphasize that this is not a final regulatory rule but a form of no-action relief. Participating FCMs are not protected by binding regulations but rather by the assurance from CFTC staff that as long as they comply with the program's conditions, the CFTC will not take enforcement action against them.
The conditions of the program include: FCMs must report all digital assets held in customer accounts to the CFTC weekly, categorized by asset type and account category. Furthermore, during the pilot, FCMs must promptly report any significant issues affecting the use of digital assets as collateral to CFTC staff.
Acting Chair Pham described this move as “establishing clear guardrails to protect customer assets and enhancing CFTC oversight.”
The Structural Shift of Bitcoin as Collateral and Its Impact on the Derivatives Market
In regulated futures markets, traditional margin collateral is limited to cash, U.S. Treasury bills, and, in some cases, gold. Trading firms must deposit these assets with their FCMs to cover potential losses on open derivative positions. The higher the quality of the collateral, the more capital-efficient the firm's trading operations become.
For institutional traders holding significant amounts of Bitcoin, the inability to use BTC as margin previously meant they either had to sell crypto assets to raise cash for margin or maintain a separate capital pool. Both options consume resources. Now, the direct acceptance of Bitcoin as margin eliminates this friction, allowing firms to utilize their existing BTC holdings more effectively across various derivatives strategies.
It is worth noting that the scope of this pilot is narrower than it may appear. It only applies to FCMs—regulated intermediaries responsible for holding customer funds and executing futures trades in designated contract markets. Swap dealers and introducing brokers are not included in this no-action relief.
The CFTC has not disclosed specific haircut percentages or concentration limits in its press release, although the custody and valuation standards embedded in the no-action letters have already addressed these aspects.