Do you want unlimited returns with limited risk? Are you curious how options hedge risk? Want to understand the difference between call and put options?
In March 2023, Zhang Ming from Shenzhen bought a BTC call option, paying $2,000 in premium with a strike price of $30,000. BTC rose to $45,000, he exercised for $15,000 profit, netting $13,000 (650% return). Maximum risk was only the $2,000 premium.
In August 2023, Ms. Li from Shanghai held 10 BTC spot, worried about short-term decline. She bought put options for hedging, paying $3,000 premium. BTC dropped 20%, spot lost $60,000, options gained $57,000, net loss $3,000. Options perfectly hedged the downside risk.
In November 2023, Mr. Wang from Beijing sold call options, collecting $5,000 premium. BTC didn't surge, options expired worthless, he kept the entire premium. By selling options, he profited steadily in ranging markets.
- Time Value Decay Risk: Options time value decays rapidly near expiration
- Buyer Total Loss Risk: Options expire unexercised, losing entire premium
- Seller Unlimited Risk: Selling options may face unlimited losses
- Complexity Risk: Options mechanisms are complex, beginners prone to errors
- Liquidity Risk: Some options contracts have poor liquidity, difficult to close
- Volatility Risk: Implied volatility changes affect options prices
What are Options Contracts?
Options are rights that can be exercised at a future time.
After buying options, if exercising the right is favorable to the buyer at expiration, the buyer will receive corresponding income through exercise, and the seller must cooperate with the buyer's exercise and make corresponding payments.
If exercising the right is unfavorable to the buyer at expiration, the buyer can choose not to exercise, and the seller does not need to cooperate with exercise and make corresponding payments.
OKX offers options contracts with Bitcoin (BTC) and Ethereum (ETH) as underlying assets, allowing users to buy and sell call and put options.
Basic Elements of Options
Underlying Asset: The asset corresponding to the option.
In March 2023, Mr. Chen from Hangzhou:
- BTC options: underlying asset is BTC
- ETH options: underlying asset is ETH
Strike Price: The price to buy or sell the underlying asset.
In June 2023, Ms. Liu from Guangzhou:
- Call option strike price: $30,000
- At expiration, BTC price > $30,000, exercise is favorable
Expiration Date: The last date the option can be exercised.
In September 2023, Mr. Zhao from Chengdu:
- Purchase date: September 1
- Expiration date: September 30
- Holding period: 30 days
Premium: The fee paid to purchase the option.
In October 2023, Ms. Wu from Xi'an:
- Bought call option
- Premium: $2,000
- This is the maximum loss
Call Options vs Put Options
Call Options
Buy when expecting price to rise.
In November 2023, Mr. Zheng from Changsha:
- Bought BTC call option
- Strike price: $40,000
- Premium: $2,000
- BTC rose to $50,000
- Exercise profit: $10,000
- Net profit: $8,000 (400% return)
Put Options
Buy when expecting price to fall.
In December 2023, Mr. Huang from Chongqing:
- Bought ETH put option
- Strike price: $2,500
- Premium: $500
- ETH dropped to $2,000
- Exercise profit: $500
- Net profit: $0 (breakeven)
Comparison Summary
Call Options:
- Expectation: price rise
- Exercise condition: market price > strike price
- Maximum profit: unlimited
- Maximum loss: premium
Put Options:
- Expectation: price fall
- Exercise condition: market price < strike price
- Maximum profit: strike price - premium
- Maximum loss: premium
Options Buyer vs Seller
Options Buyer
Pays premium, receives rights.
In January 2024, Ms. Lin from Tianjin as buyer:
- Paid premium: $2,000
- Received right: can choose to exercise or not
- Maximum loss: $2,000
- Maximum profit: unlimited (call option)
Options Seller
Collects premium, assumes obligations.
In February 2024, Mr. Peng from Hefei as seller:
- Collected premium: $2,000
- Assumed obligation: must cooperate when buyer exercises
- Maximum profit: $2,000
- Maximum loss: unlimited (call option)
Risk-Return Comparison
Buyer:
- Limited risk (premium)
- Unlimited profit
- Suitable for directional traders
Seller:
- Unlimited risk
- Limited profit (premium)
- Suitable for ranging markets or hedging strategies
Options Value Components
Intrinsic Value
Profit from immediate exercise.
In March 2024, Ms. Zeng from Suzhou:
- Call option strike price: $40,000
- BTC market price: $45,000
- Intrinsic value: $5,000
Time Value
Value of remaining time in the option.
In April 2024, Mr. Deng from Wuxi:
- Option price: $6,000
- Intrinsic value: $5,000
- Time value: $1,000
Time Value Decay
Time value decays rapidly near expiration.
In May 2024, Mr. Gong from Changzhou:
- 30 days before: time value $2,000
- 15 days before: time value $1,000
- 7 days before: time value $300
- Expiration date: time value $0
Options Trading Strategies
Strategy 1: Buy Call Options (Long)
Use when expecting significant price rise.
In June 2024, Ms. Yao from Yangzhou:
- Bought BTC call option
- Strike price: $50,000
- Premium: $3,000
- BTC rose to $70,000
- Profit: $17,000 (567% return)
Strategy 2: Buy Put Options (Short)
Use when expecting significant price fall.
In July 2024, Mr. Yuan from Nantong:
- Bought ETH put option
- Strike price: $3,000
- Premium: $1,000
- ETH dropped to $2,000
- Profit: $0 (breakeven)
Strategy 3: Sell Call Options (Collect Premium)
Use when expecting price won't surge.
In August 2024, Mr. Qin from Zhenjiang:
- Sold BTC call option
- Strike price: $60,000
- Collected premium: $5,000
- BTC rose to $55,000 (below strike)
- Option expired worthless, earned $5,000
Strategy 4: Protective Put (Hedging)
Hold spot, buy put options to hedge downside risk.
In September 2024, Ms. Shi from Taizhou:
- Held 10 BTC spot, cost $40,000
- Bought put option, strike $38,000, premium $2,000
- BTC dropped to $30,000
- Spot lost $100,000, options gained $80,000
- Net loss $22,000 (including premium)
Options vs Futures Comparison
Risk Comparison
Options Buyer: Limited risk (premium).
In October 2024, Mr. Tang from Yancheng:
- Bought option, premium $2,000
- Maximum loss: $2,000
- No liquidation
Futures Trading: May liquidate, losing entire margin.
If he used futures:
- Margin $10,000
- BTC dropped 10%: liquidated, lost $10,000
Return Comparison
Options: Higher leverage.
In November 2024, Ms. He from Lianyungang:
- Premium $2,000
- Profit $10,000
- Return: 400%
Futures: Fixed leverage.
If she used 10x leverage futures:
- Margin $10,000
- Profit $10,000
- Return: 100%
Use Case Comparison
Options Suitable For:
- Expecting significant volatility
- Need risk hedging
- Seeking high leverage
- Risk-averse
Futures Suitable For:
- Expecting moderate volatility
- Short-term trading
- Simple operations
- High liquidity needs
Common Options Mistakes
Mistake 1: Buying Out-of-Money Options
In December 2024, Mr. Wei from Huai'an:
- BTC price $40,000
- Bought call option with strike $60,000
- Premium $500
- BTC rose to $50,000, option still out-of-money
- Lost $500 at expiration
Correct Approach: Buy at-the-money or slightly in-the-money options.
Mistake 2: Holding Until Expiration
In January 2025, Mr. Wei from Suqian:
- Bought option, premium $3,000
- Option had $2,000 intrinsic value
- He held until expiration, time value fully decayed
- Only received $2,000
Correct Approach: Close early to preserve time value.
Mistake 3: Selling Naked Options
In February 2025, Ms. Jiang from Xuzhou:
- Sold call option, collected $5,000 premium
- Didn't hold spot for hedging
- BTC surged 50%
- Lost $50,000
Correct Approach: Hold spot when selling options for hedging.
Mistake 4: Not Understanding Time Value Decay
In March 2025, Mr. Xie from Nanjing:
- Bought option and ignored it
- Time value decayed rapidly
- Even with correct direction, may still lose
Correct Approach: Monitor time value decay, adjust timely.
Frequently Asked Questions
1. What's the difference between options and futures?
Options buyers have limited risk (premium), futures may liquidate. Options have higher leverage but more complex mechanisms.
2. Are options suitable for beginners?
Not very suitable. Options mechanisms are complex, recommend familiarizing with futures trading first before learning options.
3. How is options premium determined?
Composed of intrinsic value and time value, affected by underlying price, volatility, remaining time, and other factors.
4. Can options be closed early?
Yes. Options can be sold anytime before expiration to close the position.
5. How risky is selling options?
Selling call options has unlimited risk, selling put options has limited but large risk. Recommend holding spot for hedging.
6. How much capital is needed for options trading?
Buying options only requires premium, typically $500-$5,000. Selling options requires margin, typically $10,000+.
Key Takeaways
- Options buyers have limited risk and unlimited profit, maximum loss is premium
- Call options expect rise, put options expect fall
- Time value decays rapidly near expiration, don't hold until expiration
- Selling options has unlimited risk, need spot hedging
- Options suitable for hedging and high leverage, but mechanisms are complex
Further Reading
- Exercise Date: Timing Exercise Opportunities
- Options Pricing: Factors Affecting Options Prices
- Options Strategies: Application of Combination Strategies
- Volatility: Core of Options Trading
- Hedging Strategies: Protective Put Options
- Options Trading Tutorial: From Beginner to Advanced



