Deribit 2026年8月5日起对 BTC_USDC 与 ETH_USDC

Effective August 5 2026, we will be applying an interest rate of 0% to the calculation of premiums for BTC_USDC and ETH_USDC options. This is a prospective update to the methodology used for these products. USDC cash balances do not accrue interest, whether held long or short, and the applicable interest rate input for these products will therefore reflect that treatment going forward.

As a result of this change, the interest rate component will no longer affect mark prices from the effective time onward, and client risk assessments will be calculated on a consistent and accurate basis.

Reminder: Mark Prices are indicative only. They are used solely for the purposes of settlement and PnL calculations and should not be relied upon as a basis for trading decisions.

Please note the following details:

• Effective Date & Time: Wednesday, August 5, 2026, at 09:00 AM UTC
• Scope: These adjustments will apply to all users
• Changes:
• - BTC_USDC Options Mark Prices: (Implied) Interest Rate will be set to 0.
• - ETH_USDC Options Mark Prices: (Implied) Interest Rate will be set to 0.

A one-time adjustment to equity may be visible when this update is implemented. This adjustment may have an impact on your equity. Previously, equity would change gradually as contracts approached expiry due to the applied interest rate. Going forward, following this update, with the interest rate set to 0%, the interest rate component will have no further effect on your equity or mark prices for these products.

For more information, please refer to this article.

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