Position Limits of Contracts

To prevent market risks from being overly concentrated among a few traders and to guard against market manipulation in any specific contract, OKX limits the position value of users in a specific contract relative to the total position value of the contract on the platform.

Scope of position limits: perpetual and expiry futures

Impact of position limits:
In any specific contract, if the open positions and orders (across the main and sub-accounts) reach or exceed the maximum limits or the platform-wide position percentage threshold, position limit rules will apply to the main and sub-accounts. Once the position limit rules are triggered, the system rejects any new opening orders in this contract. Reduce-only orders are not restricted by this rule.

Detailed rules:
If the current USD value of same-direction open positions and orders across your main and sub-accounts reaches or exceeds Max (Position value on platform (USD) × Position percentage threshold, Position limit per user (USD)), your new orders in the same direction will be rejected; otherwise, they’ll pass the restriction.

Assume the position percentage threshold of a certain contract is 20% and the open position limit per user is 250,000 USD:

• If a contract’s open interest (market size) is low and the total position value of the contract on the platform is 500,000 USD, your position limit will be Max (500,000 USD × 20%, 250,000 USD) = 250,000 USD.

• If the open interest increases and the corresponding total position value on the platform reaches 20,000,000 USD, your position limit will increase to Max (20,000,000 USD × 20%, 250,000 USD) = 4,000,000 USD.

Notes:
These rules apply to all crypto contracts (including USDT-margined contracts, USDC-margined contracts, and crypto-margined contracts). Only opening orders are limited, as opposed to closing orders.

The position value and position percentage of long and short positions are calculated separately. This means that new long-opening orders will fail once the long position limit is reached, and new short opening orders will fail once the short position limit is reached.

Parameters:

Note: The preceding data and indicators may be adjusted in real-time based on market conditions, without separate announcements.

For rules on position limits for expiry futures, refer to:
https://www.okx.com/trade-market/info/futures

For rules on position limits for perpetual futures, refer to:
https://www.okx.com/trade-market/info/swap