To prevent excessive market risk concentration and mitigate potential manipulation in specific contracts, OKX implements position limits that restrict a user's position value relative to the total contract value on the platform.
Scope and Impact
Applicable Products:
- Perpetual futures
- Expiry futures
Effects of Position Limits:
When combined open positions and orders (main + sub-accounts) reach/exceed either:
- Maximum USD limits or
- Platform-wide position percentage thresholds
Restrictions Applied:
- New opening orders in the affected contract are rejected.
- Reduce-only orders remain unrestricted.
Detailed Rules
The system evaluates: Max (Total Platform Position Value × Percentage Threshold, User-Specific USD Limit)
Example Scenario:
- Position Percentage Threshold: 20%
- User Limit: $250,000 USD
- Small Market Size (Total Positions = $500K USD):
Limit = Max ($500K × 20%, $250K) → $250K USD - Large Market Size (Total Positions = $20M USD):
Limit = Max ($20M × 20%, $250K) → $4M USD
Key Parameters
| Parameter Name | Dimension | Description | Default Value* |
|---|---|---|---|
| Open Position % per User | Contract | Max percentage of total positions per user | 30% |
| Open Position Limit per User | Contract | Max position value (USD) per user | $250,000 USD |
*_Defaults vary by contract; subject to real-time adjustments._
Important Notes
- Applicability: Covers all crypto contracts (USDT/USDC/crypto-margined).
- Directional Separation: Long/short positions calculated independently.
- Order Types: Only opening orders are restricted.
FAQ
Q1: Do position limits apply to closing orders?
A: No. Only new opening orders are restricted when limits are reached.
Q2: How are multi-account positions calculated?
A: Main + sub-account positions are aggregated for limit evaluations.
Q3: Can thresholds change without notice?
A: Yes, adjustments may occur based on market conditions.
Q4: Where can I find contract-specific limits?
A: Check the OKX futures or swap market pages for updated rules.
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