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Bybit will implement major updates to the margin calculation algorithm for Perpetual and Futures Contract. Key changes include:

1. Cross Margin mode: Position Initial Margin and Maintenance Margin will be calculated based on the Mark Price instead of the Entry Price

2. Isolated Margin: Position Maintenance Margin will be adjusted based on the Mark Price instead of the Entry Price; the algorithm for the position Initial Margin remains unchanged. The algorithm for position liquidation price will also be updated, but will remain a fixed value, consistent with the current experience

4. After these adjustments, the risk limit will also be affected by the real-time Mark Price. This means changes in the Mark Price may cause fluctuations in your position value and risk limits

During this transition, you can see calculations from both the new and existing algorithms side-by-side. This allows you to view the upcoming changes and proactively manage your account and position risk in advance.

1. Cross Margin mode: In the Account section, you can now see the Initial Margin Rate and Maintenance Margin Rate; in the Position section, you can view the specific Initial Margin and Maintenance Margin amounts for each individual position, both based on the new algorithm

2. Isolated Margin mode: You can view the position's liquidation price and Maintenance Margin under the new algorithm in the Position section

We will be gradually releasing our new dual calculation display feature.

Web: Full release is scheduled for Jul 15, 2025

Mobile: The app is expected to be submitted to App Store for review on Jul 16, 2025

*Institutional clients can access the above data via API /v5/position/list, /v5/account/wallet-balance or push topic position, wallet.

[Click here](https://www.bybit.com/help-center/article/Understanding-the-Adjustment-and-Impact-of-the-New-Margin-Calculation) to learn more about the new calculation formulas and the dual calculation display.

Starting Sep 2, 2025, we will start implementing the new margin algorithms gradually.

1. Cross Margin: The new Initial Margin will be used as the cost to hold the position. Liquidation will be triggered based on the new Maintenance Margin Rate, calculated using the mark price

2. Isolated Margin: Liquidation will occur when the mark price hits the new liquidation price

Please note that the risk limit tier may be adjusted immediately based on the real-time mark price, and margin requirements may increase accordingly.

After the release, if your account's Maintenance Margin Rate has already reached 100% (for Cross Margin), or if the mark price hits the liquidation price (for Isolated Margin), your account or position will be liquidated immediately. We advise reviewing your positions in advance to manage risk and prepare for these changes.

Bybit Perpetual & Futures Contracts: Position margin calculation major updates

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