1. Understanding Options
a) Definition of Options
An option is a financial derivative that grants the buyer the right (but not obligation) to buy or sell an underlying asset at a predetermined price (strike price) on or before a specified date (expiration). OKX offers Bitcoin (BTC), Ethereum (ETH), and Solana (SOL) options contracts, allowing users to trade call (buy) and put (sell) options.
👉 Explore crypto options trading on OKX
b) Key Components of Options
- Underlying Asset: The financial instrument being traded (e.g., BTC/USD index)
- Expiration Date: When the contract becomes void
- Strike Price: Fixed price for buying/selling the asset
Contract Types:
- European (exercisable only at expiry - OKX uses this)
- American (exercisable anytime before expiry)
- Premium: Price paid for the option
Moneyness:
- In-the-money (ITM): Profitable to exercise
- At-the-money (ATM): Strike = market price
- Out-of-the-money (OTM): Unprofitable to exercise
c) Trading Flexibility
Both buyers and sellers can close positions before expiry or hold until settlement.
2. OKX Options Contracts Explained
Contract Specifications
| Feature | BTCUSD Options | ETHUSD Options | SOLUSD Options |
|---|---|---|---|
| Contract Size | 0.1 BTC | 1 ETH | 1 SOL |
| Settlement | BTC | ETH | SOL |
| Expiry Cycles | Daily, Weekly, Monthly, Quarterly | ||
| Naming Convention | "Asset-Expiry-Strike-Type" (e.g., BTCUSD-20231231-50000-C) |
Settlement Example
For a BTCUSD call option (strike: $60,000) settling at $90,000:
- Payout = [(90,000-60,000)/90,000] × 0.1 BTC = 0.033 BTC
3. Unique Features of OKX Options
Comparative Advantages
Asymmetric Obligations
- Buyers have rights without obligations
- Sellers assume obligations for premium income
Flexible Margin System
- Buyers pay only premium
- Sellers post margin collateral
Risk Management
- Buyer: Limited loss (premium), unlimited gain potential
- Seller: Limited gain (premium), theoretically unlimited loss
Anti-Manipulation Safeguards
- Multi-exchange price averaging for fair settlement
- Black-Scholes model for transparent mark pricing
- Dynamic margin requirements
👉 Start trading with OKX's robust options platform
4. Trading Rules and Risk Management
Key Regulations
- Position Limits: Account-based trading restrictions
- Daily Settlement: Mark-to-market accounting
Risk Controls:
- Margin requirements for sellers
- Forced liquidation protocols
- Partial position reduction mechanisms
FAQ
Q: What's the minimum contract size for BTC options?
A: Each BTCUSD option represents 0.1 BTC.
Q: Can I exercise options anytime like stocks?
A: No, OKX uses European-style options exercisable only at expiry.
Q: How are settlement prices determined?
A: Through volume-weighted averages across multiple exchanges to prevent manipulation.
Q: What happens if I don't close my option before expiry?
A: ITM options auto-exercise; OTM options expire worthless.
Q: Is options trading available 24/7?
A: Yes, OKX options trade continuously except during settlement.
Q: How does OKX protect against extreme volatility?
A: Through dynamic mark pricing and circuit breakers in the margin system.