Bybit updates mark price calculation methodology for perpetual contracts.
DeFi & Yields ·
Bybit is reverting its mark price calculation methodology for perpetual contracts to a standard approach, unwinding a method that had been in place since November 2025. The transition will run from September 2 through September 7, 2026, and will apply to all applicable perpetual contract symbols on the exchange.
The exchange cited consistency and alignment with broader market expectations as reasons for the reversion. The standard method is intended to simplify system architecture and reduce fragmentation across Bybit's perpetual offering. The update will be applied automatically, requiring no user action, and existing positions and historical data will remain unaffected.
Minor mark price fluctuations may occur during the changeover period, and Bybit has reserved the right to adjust the calculation method further under extreme market conditions without advance notice. The exchange advised users to monitor positions and manage leverage during the transition window.