Perpetual futures traders on OKX are set for a significant change as the exchange announces an updated funding rate formula rollout in three phases throughout April 2025. Designed to enhance market fairness, reduce manipulation risks, and align more closely with real market conditions, this update marks a key evolution in how funding fees are calculated across hundreds of trading pairs.
The transition will occur in three scheduled batches on April 10, April 17, and April 24, 2025, all at 12:01 am UTC. These changes will affect both USDT-margined and USD-margined perpetual contracts across various settlement intervals—2-hour, 4-hour, and 8-hour cycles.
👉 Discover how the new funding mechanism can improve your trading strategy
Understanding the New Funding Rate Formula
Funding rates play a crucial role in perpetual futures markets by keeping contract prices anchored to the underlying index price. The revised formula introduces more sophisticated components aimed at improving accuracy and reducing volatility caused by artificial premium spikes.
Key Changes in the Formula
| Component | Original Approach | Updated Approach |
|---|---|---|
| Funding Rate Calculation | Clamp[MA(Premium index – Interest rate), Cap, Floor] | Clamp[Average premium index + Clamp(Interest rate – Average premium index, 0.05%, -0.05%), Cap, Floor](Average premium uses weighted moving average) |
| Interest Rate | Fixed at 0% | Set at 0.03% annualized, adjusted per settlement frequency e.g., 8-hourly: 0.01% per cycle |
| Premium Index | Based on mid-price deviation: [(Best bid + Best ask)/2 - Index price] / Index price | Now uses impact bid/ask prices: [Max(0, Impact bid – Index) – Max(0, Index – Impact ask)] / Index |
This shift from simple mid-price to impact cost-based pricing helps mitigate spoofing and ensures funding reflects actual trade execution costs rather than easily manipulated order book depths.
Why These Changes Matter
The updated model enhances market integrity by making it harder for traders to game the system through large, non-executable orders. By incorporating impact prices—which simulate real trade slippage—the premium index becomes a truer reflection of market pressure.
Additionally, introducing a non-zero interest rate (0.03%) adds a small but consistent carry cost that better aligns perpetual swaps with traditional financial instruments, potentially attracting more institutional participation.
Rollout Schedule Across Trading Pairs
To ensure a smooth transition, OKX will implement the new formula in three stages:
Batch 1: April 10, 2025 (5 Contracts)
- LINKUSD
- LINKUSDT
- SHIBUSDT
- LUNAUSDT
- LUNCUSDT
Batch 2: April 17, 2025 (40 Contracts)
Includes notable pairs such as:
- TONUSD, TONUSDT
- SANDUSDT, SUSHIUSDT
- GRTUSDT, NEOUSDT
- USDCUSDT (with zero interest rate exception)
👉 See live contract specs under the updated funding rules
Batch 3: April 24, 2025 (232 Contracts)
This final phase covers major assets including:
- BTCUSDT, ETHUSDT, SOLUSDT
- XRPUSDT, DOGEUSDT, ADAUSDT
- BNBUSDT, AVAXUSDT, PEPEUSDT
- And all newly listed perpetuals going forward
After this date, all perpetual futures, whether listed or not in the above tables, will operate under the new funding framework.
Demo Trading Transition
Traders can test the new mechanics ahead of the live rollout. Starting March 19, 2025, at 8:01 AM UTC, all perpetual futures in demo trading environments will use the updated formula. This provides a risk-free opportunity to observe how funding fees behave under real-world scenarios.
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Frequently Asked Questions
When will the new funding rate take effect for my positions?
The change applies based on your contract’s batch schedule—April 10, 17, or 24, 2025, at 12:01 am UTC. After that time, any funding settlement (e.g., at 2:00 am, 4:00 am, or 8:00 am UTC) will use the new formula.
Will the update affect my open trades?
Yes. Once the new formula is active for your contract, ongoing positions will be subject to revised funding calculations. However, no positions are automatically closed or adjusted.
Why is OKX changing the funding rate now?
To improve market fairness and reduce susceptibility to manipulation. The new model uses impact prices and a refined averaging method to reflect true market conditions more accurately.
Is there still a cap on funding rates?
Yes. The funding rate cap and floor remain unchanged, ensuring extreme volatility is still controlled. Only the calculation method inside those bounds has evolved.
Does every contract have an interest rate?
Most do—set at 0.03% annualized—but exceptions exist. Currently, USDCUSDT maintains a 0% interest rate.
How can I prepare for the change?
Use OKX’s demo trading platform starting March 19 to simulate trades under the new system. Review your hedging and arbitrage strategies accordingly.
👉 Start practicing with demo funds under the updated rules
Final Notes
This systematic overhaul demonstrates OKX's commitment to refining its derivatives offerings for long-term sustainability and trader confidence. With clearer pricing signals and reduced manipulation vectors, the updated funding mechanism supports healthier markets for retail and professional traders alike.
As always, users are encouraged to stay informed through official product documentation and announcements. By embracing these improvements early, traders can adapt strategies proactively and maintain a competitive edge in fast-moving crypto markets.