Partial fills in OKX trade history occur when an order only matches partially with existing counterorders. The matching system prioritizes available opposing orders, leaving unmatched portions to queue for future execution. Market orders can avoid partial fills entirely, while strategic limit orders improve execution efficiency. Access OKX reliably via Youxiubi's official navigation for seamless trading.
Understanding "Partial Fills"
A "partial fill" indicates that only a portion of your order was executed, with the remainder staying in the order book pending further matches.
Example Scenario:
- You place a limit order to buy 1 BTC at $30,000.
- Only 0.4 BTC is available from sellers at that price.
- The system executes 0.4 BTC, marking it as "partially filled," while the remaining 0.6 BTC stays queued.
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OKX's Order Matching Mechanism
1. Order Book Structure
- Buy orders: Ranked highest-to-lowest price
- Sell orders: Ranked lowest-to-highest price
2. Matching Engine Workflow
- Scans order books for compatible counterorders
- Executes matches instantly when criteria align
- Leaves unmatched quantities in the order book
3. Priority Rules
- Price Priority: Better prices execute first
- Time Priority: Earlier orders at same price execute first
Common Causes of Partial Fills
| Scenario | Explanation | Solution |
|---|---|---|
| Low liquidity | Insufficient opposing orders | Check order book depth |
| High volatility | Rapid price changes | Use market orders |
| Aggressive pricing | Limited matching volume | Adjust price closer to market |
Managing Unfilled Order Portions
OKX automatically keeps unfilled portions active. You can:
- Modify order parameters
- Cancel remaining quantity
- Wait for market conditions to match your order
Note: Funds remain locked until full execution or cancellation.
Pro Tips to Minimize Partial Fills
- Use market orders for immediate full execution
- Split large orders into smaller chunks
- Monitor liquidity before placing orders
- Set realistic prices based on order book depth
FAQs
Q1: Are partial fills a sign of system issues?
A: No, they reflect normal matching operations in liquid markets.
Q2: How long do unfilled portions remain active?
A: Until manually cancelled or market conditions meet your order criteria.
Q3: Can I change an order's price after partial fill?
A: Yes, modify remaining portions anytime.
Q4: Do partial fills affect fee calculations?
A: Fees apply only to executed portions.
Q5: Why does my order show multiple partial fills?
A: The engine executes whenever matching volume becomes available.
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Key Takeaways
- Partial fills indicate successful partial order execution
- OKX's matching engine operates on price-time priority
- Strategic order placement reduces partial fill frequency
- Unfilled portions remain active until cancelled or completed
Understanding these principles helps traders navigate OKX's markets efficiently while leveraging its robust matching infrastructure.