In a move aimed at enhancing trading flexibility and reducing entry barriers, OKX has announced an upcoming adjustment to the minimum order sizes and order quantity precision for select perpetual contracts. The changes are scheduled to take effect on June 6, 2024, between 2:00 PM and 4:00 PM (UTC+8). This update is part of OKX’s ongoing efforts to improve user experience by enabling finer control over trade execution and lowering the minimum capital required to enter certain markets.
What’s Changing?
The adjustment will primarily impact four popular USDT-margined perpetual contracts: FET/USDT, SOL/USDT, STX/USDT, and THETA/USDT. Both the minimum order size and the order quantity precision (also known as lot size) will be reduced, allowing traders to open smaller positions with greater granularity.
These changes mean that traders—especially retail and precision-focused investors—can now deploy more flexible risk management strategies and allocate capital more efficiently across these assets.
👉 Discover how smaller trade sizes can enhance your trading strategy with improved precision.
Below is a breakdown of the updated parameters:
FET/USDT
- Before: Minimum order = 1 contract (10 FET), Precision = 1
- After: Minimum order = 0.1 contract (1 FET), Precision = 0.1
SOL/USDT
- Before: Minimum order = 0.1 contract (0.1 SOL), Precision = 0.1
- After: Minimum order = 0.01 contract (0.01 SOL), Precision = 0.01
STX/USDT
- Before: Minimum order = 1 contract (10 STX), Precision = 1
- After: Minimum order = 0.1 contract (1 STX), Precision = 0.1
THETA/USDT
- Before: Minimum order = 1 contract (10 THETA), Precision = 1
- After: Minimum order = 0.1 contract (1 THETA), Precision = 0.1
This reduction effectively lowers the entry threshold for traders interested in these digital assets, particularly beneficial for those managing smaller portfolios or testing new trading strategies without large exposure.
Understanding Key Terms: Order Quantity Precision & Minimum Order Size
To fully grasp the implications of this update, it's essential to understand two core concepts:
Order Quantity Precision
This refers to the smallest increment by which a contract’s order quantity can change. For example, if the precision is set to 0.1 contracts, then users can place orders in multiples of 0.1—such as 0.1, 0.2, 1.5, etc.
Previously, some contracts only allowed whole-number inputs (e.g., 1, 2, 3 contracts), limiting fine-tuned position sizing.
Minimum Order Size
This is the smallest number of contracts a user can trade in a single order. It must always be a multiple of the order quantity precision.
For instance:
- If the minimum order size is 1 contract and precision is 0.1, valid orders start at 1.0, then increase by 0.1 increments (1.1, 1.2, etc.).
- After the update, if the minimum drops to 0.1 with precision at 0.1, users can now open positions as small as one-tenth of a full contract.
These adjustments empower traders with better control over leverage and position sizing—critical factors in risk-adjusted returns.
Impact on Position and Order Display
Following the update, any contract with an order quantity precision below 1.0 will support decimal-based display for both open positions and pending orders.
This includes:
- Open positions (both long and short)
- Active limit and stop orders
- Partially filled or unfilled orders
- Conditional and trigger-based orders
For example:
Take the SHIB/USDT perpetual contract, where each contract represents 1,000,000 SHIB:
- Before: Precision was 1 contract, so all positions and orders were shown in whole numbers (e.g., 5 contracts = 5,000,000 SHIB).
- After: With precision adjusted to 0.1 contracts, users can now see and manage fractional positions like 5.3 contracts (5,300,000 SHIB).
This change improves transparency and allows for more nuanced portfolio tracking—especially useful for algorithmic traders and those using automated strategies.
👉 See how decimal precision can refine your trading execution and portfolio management.
Updated Order Submission Rules
All new orders and modifications must comply with the revised rules post-adjustment:
- The order quantity must be a multiple of the new lot size.
- The total quantity must be equal to or greater than the new minimum order size.
For example:
With SOL/USDT:
- New precision: 0.01 SOL per contract
- New minimum: 0.01 contract
→ Valid orders include: 0.01, 0.05, 1.23 contracts—but not 0.015 (not a multiple of 0.01).
These rules apply uniformly across all trading interfaces:
- Web platform
- Mobile app
- API access
- Trading bots and grid strategies
- Copy trading participants
Automated systems should be reviewed ahead of the change to ensure compatibility with updated lot sizes and minima.
API and WebSocket Updates
Developers and algorithmic traders relying on OKX’s API infrastructure should note that the following fields will reflect updated values after the rollout:
lotSz– Now reflects the new order quantity precisionminSz– Updated to match the new minimum order size
These changes will be visible in public market data endpoints and WebSocket streams in real time.
Traders using custom scripts or third-party tools are strongly advised to:
- Test against the demo trading environment
- Update configuration files with new lot size logic
- Implement validation checks to prevent rejected orders due to rounding errors
Failure to adapt could result in order rejections or unintended position sizing—potentially impacting performance during volatile market conditions.
Why This Matters: Benefits for Traders
OKX’s decision aligns with broader industry trends toward democratizing access to derivatives markets. By reducing minimums and increasing precision, several key benefits emerge:
1. Lower Entry Barriers
Smaller investors can now participate in high-value-per-contract markets without committing excessive capital.
2. Finer Risk Control
Traders can adjust position sizes more precisely, improving stop-loss placement and reward-to-risk ratios.
3. Enhanced Strategy Testing
Algorithmic and copy traders can run lower-capital test strategies before scaling up.
4. Better Portfolio Diversification
With reduced minimums, users can spread risk across more assets without overconcentration.
Frequently Asked Questions (FAQ)
Q: Will my existing open positions or pending orders be affected?
A: No. All active positions and unfilled orders will remain unchanged during and after the adjustment period. Only new or modified orders will follow the updated rules.
Q: Do I need to manually update my trading bot or API integration?
A: Yes. If your system relies on hardcoded lot sizes or minimums, you should pull updated contract specifications from the API or test in sandbox mode before June 6.
Q: Can I still trade in whole numbers after the change?
A: Absolutely. The update introduces more flexibility, not mandatory decimals. You may continue placing whole-number orders if preferred.
Q: Does this affect leverage or margin requirements?
A: No. Leverage settings, margin modes, and funding rates remain unchanged. Only order size parameters are being adjusted.
Q: Is this change permanent?
A: Yes. Once implemented, the new minimums and precision levels will be standard unless further updates are announced.
Q: Which devices or platforms are impacted?
A: All platforms—web, iOS, Android, API—are uniformly updated. No interface will retain legacy settings after the maintenance window.
OKX remains committed to delivering a seamless, professional-grade trading environment for both novice and advanced users. These enhancements reflect a deeper focus on accessibility, precision, and user-centric innovation in the fast-evolving digital asset ecosystem.