Starting April 28, 2025 (UTC+8), OKX will implement a strategic update to the minimum order size and order quantity precision for select perpetual and delivery contracts. This change is designed to enhance trading flexibility, improve accessibility for retail traders, and reduce entry barriers across popular cryptocurrency pairs.
The adjustment reflects OKX’s ongoing commitment to refining user experience by enabling finer control over position sizing—particularly beneficial for traders managing risk in volatile markets or executing precise portfolio allocations.
Key Contract Adjustments
OKX has identified a range of high-demand contracts for this update. The following instruments will see their minimum order size reduced from 1 contract to 0.1 contract, with corresponding improvements in order quantity precision:
- Perpetual Contracts:
ADA/USDT, ARB/USDT, AVAX/USDT, BCH/USDT, BSV/USDT, DOGE/USDT, ETC/USDT, MKR/USDT, NEAR/USDT, PEPE/USDT, SOL/USDT, TRX/USDT, XRP/USDT - Delivery Contracts:
ETC/USDT, XRP/USDT
This means traders can now open positions as small as one-tenth of a contract, offering significantly greater granularity than before.
👉 Discover how smaller lot sizes can boost your trading strategy today.
Understanding Order Quantity Precision and Minimum Order Size
To fully benefit from these changes, it's important to understand two core concepts:
What Is Order Quantity Precision?
Order quantity precision defines the smallest increment by which you can adjust your order size. For example, if a contract has an order quantity precision of 0.1 contracts, your order size must be a multiple of 0.1—such as 0.1, 0.5, or 1.7 contracts.
Previously, many contracts only allowed whole-number inputs (e.g., 1, 2, 3), limiting flexibility. Now, fractional entries are supported, empowering traders to fine-tune exposure.
What Is Minimum Order Size?
The minimum order size is the smallest number of contracts you can trade in a single order. It must always be a multiple of the order quantity precision.
Before the update:
- Minimum order size: 1 contract
- Precision: 1 contract
→ Smallest possible trade: 1 contract
After the update:
- Minimum order size: 0.1 contracts
- Precision: 0.1 contracts
→ Smallest possible trade: 0.1 contracts
This change effectively lowers the capital threshold required to enter a position—ideal for new traders or those practicing conservative risk management.
Impact on Position and Order Display
Following the adjustment, all interfaces—including web, mobile app, and API—will support decimal-based display for:
- Open positions
- Active limit orders
- Partially filled orders
- Conditional and trigger orders
For example, consider the SHIB/USDT perpetual contract with a face value of 1,000,000 SHIB:
- Prior to update: Orders and positions displayed in whole units (e.g., 1, 2, 3 contracts)
- After update: You can now see and manage positions like 1.5 contracts (1,500,000 SHIB) or place an order for 10.7 contracts
This enhanced visibility ensures greater accuracy in tracking exposure and improves decision-making for both manual and algorithmic traders.
👉 See how decimal precision gives you more control over your trades.
Updated Order Submission Rules
All new orders and modifications must comply with the updated parameters:
- Order size must be a multiple of the new precision (0.1)
- Order size must be at least the new minimum (0.1)
Examples:
| Contract | Allowed Sizes | Invalid Sizes |
|---|---|---|
| ADA/USDT Perp | 0.1, 0.3, 1.5, 2.0 | 0.05, 0.15, 1.05 |
| XRP/USDT Delivery | 0.1, 0.8, 5.0 | 0.09, 1.11 |
These rules apply uniformly across:
- Spot trading interface
- Advanced trading tools (grid bots, DCA)
- Copy trading portfolios
- Custom API strategies
Automated systems should ensure input values are rounded correctly to the nearest 0.1 increment to avoid rejection.
API and WebSocket Updates
Developers and algorithmic traders should note that the following fields in the OKX API will reflect the new values post-update:
lotSz– now returns 0.1 for affected contractsminSz– now returns 0.1 for affected contracts
These changes will be reflected in:
/api/v5/public/instruments- WebSocket subscription channels (e.g.,
ticker,depth,orders)
Traders using automated scripts or third-party tools are strongly advised to:
- Validate current
lotSzandminSzvalues programmatically - Implement dynamic rounding logic based on real-time instrument data
- Test in sandbox mode before live deployment
Failure to update logic may result in rejected orders due to invalid sizing.
Frequently Asked Questions (FAQ)
Q: When will the changes take effect?
A: The updates will go live on April 28, 2025 at 4:00 PM UTC+8. No action is needed for open positions or pending orders—they will remain valid and unaffected.
Q: Does this affect leverage or margin requirements?
A: No. Leverage settings, margin modes, and funding rates remain unchanged. Only order size parameters are adjusted.
Q: Can I still trade full contracts?
A: Yes. The change adds flexibility—it doesn’t remove existing options. You can continue placing orders in whole numbers (1, 2, 3...) or use decimals (0.1, 0.5, etc.).
Q: Are all contracts impacted?
A: No. Only the listed perpetual and delivery contracts are included in this phase. More pairs may be added in future updates.
Q: Will my historical trade records change?
A: No. Past trades will retain their original format and quantities. The display update applies only to new and modified orders after implementation.
Q: Do I need to update my API code?
A: If your system assumes fixed lot sizes or minimums, yes. To ensure compatibility, always pull lotSz and minSz dynamically from the API rather than hardcoding them.
Why This Matters for Traders
This update aligns with broader industry trends toward democratizing access to derivatives markets. By reducing minimums:
- New traders can gain experience with lower capital outlay
- Experienced traders can diversify across more positions without overexposure
- Algorithmic systems benefit from smoother position scaling and better slippage control
It also supports more effective hedging strategies and enables tighter risk calibration—especially valuable during high-volatility events.
👉 Start trading with improved precision and lower entry barriers now.
Final Notes
All trading activities—including placing orders, transferring funds, adjusting leverage—are fully operational during the transition window. There will be no service interruption.
OKX remains committed to continuous product innovation and user-centric design. We appreciate your trust and invite you to explore the enhanced trading experience made possible by these updates.
Stay tuned for future enhancements aimed at making crypto trading more accessible, efficient, and secure for everyone.
Note: All references to prior dates or external links have been removed per policy. Only core functionality and educational content are preserved.