Margin Calculation Methodology
The margin requirements for USDT-margined perpetual contracts are calculated as follows:
- Initial Margin = Position Notional Value / Leverage Multiple
- Maintenance Margin = (Position Notional Value × Maintenance Margin Rate) - Maintenance Margin Deduction
Key Insight: These calculations ensure adequate collateral while allowing traders to maximize capital efficiency through leverage.
Market Stability Measures
During periods of excessive volatility or extreme market conditions, BIT may implement additional protective measures:
- Dynamic leverage adjustments (reducing maximum allowed multiples)
- Tiered position limit modifications
- Revised maintenance margin requirements across position tiers
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Trading Mode Specifications
USDT-margined perpetual contracts operate exclusively under Unified Trading Mode with two variants:
| Trading Mode | Requirements |
|---|---|
| Non-Borrowing | Sufficient USDT balance for margin |
| Borrowing | Adequate total USDT collateral pool |
Frequently Asked Questions
What happens if my margin falls below maintenance requirements?
Positions will be liquidated when equity can no longer cover the maintenance margin. Always monitor your margin ratio.
Can I change leverage after opening a position?
Leverage adjustments are typically permitted but may be restricted during high volatility. The system will recalculate your margin requirements accordingly.
How often does BIT update margin parameters?
Margin rules are periodically reviewed. Traders receive advance notice of significant changes through official announcements.
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Operational Considerations
- Margin requirements are dynamically calculated in real-time
- Always maintain surplus margin beyond minimum requirements
- Monitor BIT's official communications for parameter updates