Trading options in the cryptocurrency market offers advanced strategies for hedging, speculation, and yield enhancement. OKX Options provides a robust, flexible platform catering to both beginners and institutional traders. Whether you're looking to protect your spot holdings or deploy complex multi-leg strategies, OKX delivers powerful tools with deep liquidity and professional-grade risk management.
This guide walks you through everything you need to know—from contract specifications and account modes to fees and API integration—so you can confidently navigate the world of crypto options.
Understanding OKX Options Contract Specifications
Before placing your first trade, it's essential to understand the foundational elements of OKX’s options contracts.
Settlement Currency
OKX Options are settled in BTC or ETH, not stablecoins. This means profits, losses, and exercise outcomes are paid out in the underlying cryptocurrency. However, traders using Portfolio Margin or Multi-Currency Cross margin modes can use stablecoins like USDT or USDC as collateral, offering greater flexibility in capital allocation.
👉 Discover how margin flexibility can enhance your trading strategy.
Underlying Index
The pricing of OKX options is based on the BTC-USD and ETH-USD indices. These indices are derived from real-time spot prices across major exchanges, ensuring fair and transparent valuation.
You can explore:
- The index methodology
- Historical index data at BTC-USD Index
- Past option exercise records via the Option Exercise History
Contract Multiplier
Each contract represents a fraction of the underlying asset:
- BTC options: 0.01 BTC per contract
- ETH options: 0.1 ETH per contract
For example, one BTC option controls 1% of a full BTC. This fractional sizing makes options accessible without requiring large capital outlays. Note that perpetual swaps and futures have a multiplier of 1, with contract value adjusted separately.
Three Ways to Trade Options on OKX
OKX supports diverse trading styles through three distinct channels:
1. Simple Options – Ideal for Beginners
Perfect for those new to options trading. With Simple Options, you can only buy calls or puts, limiting risk to the premium paid. There’s no margin requirement, no liquidation risk, and a simplified interface.
👉 Start with simple, low-risk options strategies today.
2. Options Chain – For Advanced Traders
Access the full order book with strike ladders, expiry calendars, and volatility surfaces. This mode supports multi-leg strategies (like spreads and straddles) and is ideal for experienced traders managing complex positions.
3. RFQ (Request for Quote) – Institutional-Grade Execution
Available on desktop only, the Liquid Marketplace allows users to request quotes for large single-leg or multi-leg options trades. Minimum RFQ size is $1,000. This feature is particularly valuable for institutions or high-net-worth individuals executing sizable orders with minimal market impact.
Minimum Capital Requirements
While many options features have no minimum capital threshold, certain account types and KYC levels do impose requirements:
- Switching to Multi-Currency or Portfolio Margin Account: $10,000
- Options trading (non-Simple) for China Mainland KYC holders: $10,000
- Simple Options, RFQ, and Overseas KYC users: No minimum capital
These thresholds help ensure responsible risk management while keeping access open for global traders.
Fee Structure and Cost Efficiency
OKX maintains a competitive fee schedule detailed in the Trading Fees section. Two types of fees apply:
- Transaction fees on opening and closing trades
- Exercise fees when an option is exercised
Fees vary based on your 30-day trading volume and whether you’re a maker or taker. You can check your personalized rates under "My trading fees" in your master account dashboard.
Low fees combined with deep liquidity make OKX a cost-effective venue for both retail and institutional options trading.
Account Modes: Choosing the Right Margin Strategy
Selecting the right account mode is crucial for optimizing margin efficiency and risk control.
Portfolio Margin (PM) – For Sophisticated Traders
Designed for market makers and active traders, Portfolio Margin supports most major cryptocurrencies as margin assets. It calculates risk at the portfolio level, enabling offsetting between correlated positions (e.g., options and futures).
However, note that BTC-USDT and BTC-USD are treated as separate underlyings, so hedging an option with a USDT-margined perpetual won’t reduce margin requirements.
PM uses delta hedging during liquidation, meaning it first attempts to hedge directional risk using futures/perpetuals before liquidating the option—reducing slippage and improving execution quality.
Isolated vs Cross Margin
Regardless of account type (single, multi-currency, or PM), you can choose:
- Isolated: Position margin is separate. Ideal for long option buyers who want zero liquidation risk.
- Cross: Margin is shared across positions. Best for short sellers or those using stablecoins as margin to avoid frequent top-ups.
For pure buyers, isolated mode ensures peace of mind. For advanced strategies involving shorts or hedges, cross mode improves capital efficiency.
Autoborrow: Seamlessly Use Stablecoins as Collateral
Enable Autoborrow in trade settings to use USDT or USDC as margin for BTC or ETH options.
Two key concepts:
- Actual borrowing (liabilities): Negative equity; interest applies.
- Potential borrowing: Occurs when your margin currency differs from the contract’s settlement currency. No interest is charged unless you incur losses that create a liability.
Interest rates on BTC and ETH are stable and publicly available. Since options are settled in crypto, borrowings occur only in BTC or ETH—not stablecoins.
FAQ: Frequently Asked Questions
Q: Can I trade OKX Options with USDT as my main balance?
A: Yes. Use Multi-Currency Cross or Portfolio Margin with Autoborrow enabled to use USDT as collateral for BTC/ETH options.
Q: Are there liquidation risks when buying options?
A: No—if you're only buying options (long positions) in isolated mode, your maximum loss is limited to the premium paid.
Q: How does Portfolio Margin reduce capital requirements?
A: By netting risks across correlated instruments (e.g., options and futures), PM reduces overall margin needs through portfolio-level risk assessment.
Q: Can I automate my options trading?
A: Yes. OKX offers a comprehensive API suite for algorithmic trading, including support for RFQs, mass cancellations, and real-time trade streaming.
Q: Is RFQ trading available on mobile?
A: No. The RFQ (Liquid Marketplace) feature is currently desktop-only.
Q: How are options exercised?
A: In-the-money options are automatically exercised at expiry based on the BTC-USD or ETH-USD index price.
Institutional Features: Built for Professional Traders
OKX offers several advanced tools tailored for institutions:
API Best Practices
Developers can access detailed guidance on instrument configuration and optimal API usage patterns.
Market Maker Protection (MMP)
Prevents excessive executions within a short time window. Configurable via API with millisecond-level precision.
Position & Rate Limits
Default limits ensure market stability. Market makers can request increases via their account manager or institutional support.
Self-Trade Prevention
Available via API to avoid self-matching trades—a critical feature for algorithmic strategies.
Trade History Access
- Public: Stream real-time orderbook trades via WebSocket.
- RFQ trades: Available through WebSocket or the Telegram channel “OKX Liquid Marketplace Trade.”
- Private: View personal trade history under Assets > Order Center > Trading Account History.
Final Thoughts
OKX Options combines accessibility with professional depth. Whether you're a beginner exploring basic calls and puts or an institution deploying delta-neutral strategies at scale, the platform supports your journey with flexible margin modes, competitive fees, and powerful execution tools.
👉 Unlock advanced trading capabilities with a platform built for the future of finance.