What are Options?
Options are financial contracts that give the holder the right (but not the obligation) to buy or sell an underlying asset at a specific price before a specific date.
Core Elements of Options
| Element | Description |
|---|---|
| Underlying Asset | Stocks, indices, commodities, etc. |
| Strike Price | Agreed buy/sell price |
| Expiration Date | Last date the option is valid |
| Type | Call (bullish) or Put (bearish) |
| Premium | Price paid by buyer to seller |
Difference Between Call and Put
Call (Bullish Option)
Gives the holder the right to buy the underlying asset at the strike price. When to buy a Call? When you expect the stock price to rise by more than the premium cost.
Example: Stock price $100, buy Call: Strike $105, Premium $3, Expiration 1 month.
- Scenario A: Stock rises to $120 → Exercise profit = $120 - $105 - $3 = $12
- Scenario B: Stock falls to $90 → Let it expire, loss = $3 (premium)
Maximum profit is unlimited, maximum loss is limited to the premium.
Put (Bearish Option)
Gives the holder the right to sell the underlying asset at the strike price. When to buy a Put? When you expect the stock price to fall, or to protect an existing position.
Example: Stock price $100, buy Put: Strike $95, Premium $2. Stock falls to $80 → Exercise profit = $95 - $80 - $2 = $13.
Maximum profit = Strike price - Premium (if stock goes to 0), maximum loss is limited to the premium.
Four Strategies for Retail Investors
Strategy 1: Buy Call (Bullish)
Best for: Strongly bullish on a stock. Advantages: Leverage effect (control large position with small capital), limited risk. Disadvantages: Time decay, needs significant price increase to profit.
Strategy 2: Buy Put (Protection/Bearish)
As speculation: Buy Put when expecting a major price decline. As protection: Hold stock + Buy Put = Protective Put, Put profits offset stock losses during a crash.
Strategy 3: Covered Call
Hold stock + Sell Call (strike above current price), collect premium for extra income. Disadvantage: Upside is capped.
Strategy 4: Protective Put
Hold stock + Buy Put as insurance. Limited downside risk, unlimited upside potential.
Tips for Retail Investors Using Options
Tip 1: Only Use Buyer Strategies
Retail investors should only be option buyers (buy Call, buy Put), not sellers. Buyer risk is limited (premium), seller risk is theoretically unlimited.
Tip 2: Control Position Size
| Strategy | Recommended Position Limit |
|---|---|
| Buy Call/Put | 2% of total capital |
| Covered Call | 20% of stock holdings |
Tip 3: Understand Time Decay
Option value decays every day. Avoid short-term options (<14 days), choose options with 30-60 days to expiration.
Tip 4: Do Not Gamble on Earnings
Option prices are typically elevated before earnings. After earnings, regardless of the move, implied volatility drops and option prices can fall sharply.
Summary
Core principles of options:
- Call = Bullish, Put = Bearish
- Buyer risk is limited, seller risk is unlimited
- Time is the buyer''s enemy
- Strictly control position size — options should not exceed 5% of total capital
- Only use buyer strategies — retail investors should not be sellers
For more risk management strategies, see our Hedging Strategies, or visit our Learning Center to learn how to flexibly use options to protect positions. Choose the Pricing Plan that suits you best to start your trading journey.