Introduction

This article explains why a Limit Order may execute instantly on Coinlocally Futures, even if you expected it to remain on the order book.

Why it happens

A Limit Order executes immediately when its price matches or crosses the current market price.

Examples

• Limit Buy executes immediately if your price is higher than or equal to the best Ask.
• Limit Sell executes immediately if your price is lower than or equal to the best Bid.

Maker vs Taker

• If your limit order executes instantly, it becomes a Taker order.
• To ensure your order stays on the book, enable Post-Only.

Additional notes

• Market volatility can cause rapid price changes that trigger immediate execution.
• Post-Only guarantees your order will not execute immediately.

Common Issues

• Forgetting to enable Post-Only.
• Setting a limit price too close to the current market price.
• Confusing Maker orders with limit orders that execute instantly.

feeling lost?

If you’re unsure why your limit order executed instantly, our support team can review the order details and guide you.

Updated on: 01/13/2026