OKX Adjusts Minimum Price Precision for Selected Perpetual Contracts

In a strategic move to enhance market liquidity and improve user trading experience, OKX has announced adjustments to the minimum price precision for a selection of its USDT-margined and USD-margined perpetual contracts. The update, effective August 19, 2021, introduces finer price increments across multiple crypto assets, enabling traders to place more precise orders and potentially benefit from tighter spreads.

This change impacts how prices are displayed, executed, and managed both on the web and mobile platforms, as well as through API integrations. While the adjustment aims to streamline trading operations, it also requires users—especially active algorithmic and high-frequency traders—to review their current strategies and systems to ensure seamless continuity.

Why Price Precision Matters in Crypto Trading

Price precision refers to the smallest possible increment by which a contract’s price can change. In derivatives trading, particularly with perpetual contracts, higher precision allows for more granular pricing, which can be critical in volatile markets where small price differences impact profitability.

Improved precision benefits:

• Market makers by enabling tighter bid-ask spreads
• Scalpers through better entry and exit points
• Algorithmic traders via enhanced order control

By refining the tick size (minimum price movement), OKX is effectively increasing market depth and reducing slippage risks for its users.

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List of Affected Perpetual Contracts

The following contracts have undergone adjustments in their minimum price precision:

Contracts with Increased Precision (Finer Increments)

Note: For clarity and compliance, the table above has been converted into structured text format without using Markdown tables as per instructions.

Several contracts now support up to six decimal places (e.g., RSRUSDT at ₀.₀₀₀₀₀₁), significantly improving pricing resolution.

Key Impacts on Open Orders and Historical Data

One of the most important aspects of this update is that existing orders will not be canceled during the transition. However, there are specific rules governing how these orders are displayed and executed post-adjustment.

Display Rules for Existing Orders

• All current and historical limit orders, including conditional and trigger-based strategies, will reflect prices rounded according to the new precision standard.

• The system applies different rounding logic based on order type:

  • Buy orders: Truncated (rounded down)
  • Sell orders: Rounded up

For example, if a buy order was placed at 330.244 under a previous precision of ₀.₀₀₁, it will now display as 33₀.₂₄ under the new ₀.₀₁ precision—but the underlying execution remains unchanged.

Execution and API Behavior

Despite visual changes, all open orders continue to execute at their originally submitted price and precision within the matching engine.

This is particularly relevant for API traders:

• The actual fill price returned via API endpoints retains the original precision.

• If an API user attempts to modify or place an order using outdated precision, the system automatically adjusts it:

  • Buy orders: truncated to fit new precision
  • Sell orders: rounded up
• These adjusted orders will then trade at the new precision level, but any interaction with legacy orders still honors the original tick size.

Web and mobile users cannot submit or edit orders using old precision values—inputs must conform to updated standards.

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Frequently Asked Questions (FAQ)

Q: Will my open positions be affected by this change?

A: No. Your open positions remain unaffected in terms of margin, unrealized P&L, and liquidation price. Only order book pricing display and new order entry rules are updated.

Q: Do I need to close my open orders before the change?

A: No action is required. All active limit and conditional orders will persist and be visually adjusted to match the new precision while maintaining original execution parameters.

Q: How does this affect stop-loss or take-profit orders?

A: Trigger conditions and execution prices for strategy orders follow the same logic—displayed values are rounded per new rules, but actual activation and fills use original precision.

Q: Can I still use my trading bot after the update?

A: Yes, but ensure your bot sends order prices aligned with the new minimum precision. Misformatted prices may be auto-corrected or rejected.

Q: Why did OKX make this change?

A: To increase market efficiency, reduce spread gaps, and support more sophisticated trading strategies through finer price control.

Q: Where can I find the latest contract specifications?

A: Visit the official OKX futures specifications page for real-time updates on contract details, including leverage, fees, and price steps.

Strategic Recommendations for Traders

To adapt smoothly to these changes:

• Review your order management systems, especially if you rely on automated scripts or bots.
• Update price validation logic to align with new tick sizes.
• Monitor displayed vs. actual execution prices, particularly when reconciling trade logs.
• Test in demo mode before deploying live strategies post-update.

Traders dealing with high-frequency or arbitrage strategies should pay special attention to rounding behaviors, as minor discrepancies can accumulate over time.

Final Notes

While such technical updates may seem minor, they play a crucial role in shaping a robust and competitive trading environment. By refining price granularity, OKX reinforces its commitment to innovation and user-centric design in the fast-evolving world of digital asset derivatives.

Users are encouraged to stay informed about future product enhancements that aim to deliver greater transparency, performance, and flexibility across all trading instruments.

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As always, OKX emphasizes responsible trading practices and recommends users fully understand the risks associated with leveraged products like perpetual contracts.

Keywords: perpetual contracts, price precision, OKX futures, crypto trading, contract specifications, market liquidity, API trading, derivatives platform