Covered Calls: Earning Income on Stocks You Own
Generate extra income from your stock holdings with this popular options strategy. Learn how covered calls work and when they make sense.
Category: options-strategies · Difficulty: advanced · Read time: 7 min read
Topics: covered calls, options, income, premium, stock ownership
Covered Calls: Earning Income on Stocks You Own
A covered call is one of the most conservative options strategies. It lets you generate extra income from stocks you already own and plan to hold.
What Is a Covered Call?
When you write (sell) a covered call, you: 1. **Own at least 100 shares** of a stock 2. **Sell a call option** on those shares 3. **Collect the premium** immediately 4. **Agree to potentially sell** your shares at the strike price
It's "covered" because you own the shares – if the buyer exercises the option, you can deliver the stock.
How It Works: An Example
You own 100 shares of XYZ at $50 per share ($5,000 position).
You sell a covered call:
- Strike price: $55
- Expiration: 30 days
- Premium received: $1.50 per share ($150 total)
Scenario 1: Stock Stays Below $55
The option expires worthless. You keep:
- Your 100 shares
- The $150 premium
You've earned 3% return ($150/$5,000) in one month from the premium alone, plus any dividends.
Scenario 2: Stock Rises Above $55
The buyer exercises the option. You must sell at $55:
- You receive: $55 × 100 = $5,500
- You keep the premium: $150
- Total received: $5,650
- Your profit: $650 (13% on your $5,000 cost)
You made money, but you missed gains above $55.
Scenario 3: Stock Falls Significantly
If XYZ drops to $40:
- Your shares lost $1,000 in value
- You keep the $150 premium
- Net loss: $850
The premium provides a small cushion, but doesn't protect against big drops.
When Covered Calls Make Sense
Good Situations:
- You're happy to sell at the strike price
- You want income from a stock you plan to hold
- You expect sideways or slightly higher prices
- The stock pays small or no dividends
Poor Situations:
- You're very bullish (you'll cap your gains)
- The stock is volatile (large moves hurt either way)
- You don't want to sell the stock
- Tax implications of selling would be unfavorable
Important Considerations
Assignment Risk
If the option is exercised, you MUST sell. There's no backing out. Be prepared to part with your shares.
Strike Selection
| Strike vs. Stock Price | Premium | Chance of Assignment | |------------------------|---------|---------------------| | Far above (OTM) | Lower | Lower | | At the price (ATM) | Higher | ~50% | | Below price (ITM) | Highest | High |
Time Selection
Shorter-term options (30-45 days) often provide the best balance of:
- Reasonable premium
- Time decay working in your favor
- Flexibility to reassess
Dividends
If your stock pays dividends near expiration, early exercise is more likely. Factor this into your planning.
The Math of Covered Calls
Annualized Returns
If you collect $150 on a $5,000 position monthly:
- Monthly return: 3%
- Annualized: ~36%
This seems amazing, but remember:
- You cap upside
- You still bear downside risk
- You might have shares called away
Break-Even Point
In our example: $50 cost - $1.50 premium = $48.50 break-even
You start losing money if the stock drops below $48.50.
Mistakes to Avoid
1. **Selling calls on stocks you love** – You might lose them 2. **Ignoring ex-dividend dates** – Early assignment catches people off guard 3. **Selling too far out** – Ties up your shares and opportunity cost is real 4. **Chasing premium on volatile stocks** – The risk usually isn't worth it
The Bottom Line
Covered calls can be a smart way to:
- Generate income from a static portfolio
- Reduce cost basis on stocks you own
- Add a small amount of downside protection
But remember:
- You still own the stock risk
- Your upside is capped
- It requires active management
For most investors, covered calls work best on stable, lower-volatility holdings where you'd be content to sell at a higher price.