Covered Call
An options strategy where you sell a call option against shares you already own, collecting premium income in exchange for capping your upside at the strike price.
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Explained Simply
A covered call is one of the most popular options strategies for generating income on existing stock positions. You own 100 shares of a stock and sell one call option against them. If the stock stays below the strike price at expiration, you keep the premium and your shares. If the stock rises above the strike, your shares are called away (sold) at the strike price. Example: You own 100 shares of AAPL at $180. You sell a $190 call for $3.00, collecting $300. If AAPL stays below $190, you keep the $300. If it goes to $200, your shares are sold at $190 and you keep the $300 premium, but you miss the move from $190 to $200. The tradeoff: consistent income vs. limited upside. Covered calls work best in sideways or slightly bullish markets where the stock is unlikely to make explosive moves. Many long-term investors use covered calls to generate 1-3% monthly yield on their holdings.
How to Write a Covered Call Step by Step
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Own at least 100 shares of the underlying stock. You need 100 shares per contract because each options contract represents 100 shares. If you own 300 shares, you can sell up to 3 covered calls.
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Choose your strike price. The strike determines your maximum upside and the premium you collect:
- At-the-money (ATM): Highest premium but shares are likely to be called away. Good when you are neutral or slightly bearish.
- Out-of-the-money by 5-10% (OTM): Moderate premium with room for the stock to appreciate. Most common for income investors.
- Deep OTM by 10-15%: Low premium but very unlikely to be assigned. Adds incremental income without much upside sacrifice.
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Choose your expiration. Options with 30-45 days to expiration (DTE) offer the best theta decay rate — time value erodes fastest in this window, giving you the most premium per day of exposure.
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Sell the call and collect the premium immediately. The premium is yours to keep regardless of what happens next.
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Manage the position: If the stock stays below the strike at expiration, the option expires worthless and you keep both the shares and the premium. If the stock rises above the strike, you can either let the shares be assigned or buy back the option before expiration to keep the shares.
Covered Call Income Potential
Covered calls typically generate 1-4% per month (12-48% annualized) depending on the stock's volatility and strike selection. Higher-volatility stocks (TSLA, NVDA) offer richer premiums.
Example: You own 100 shares of AAPL at $185. You sell a $195 call (30 DTE) for $3.50, collecting $350.
- If AAPL stays below $195: You keep the $350 premium (1.9% return in 30 days = 23% annualized) plus dividends.
- If AAPL rises to $200: Your shares are sold at $195. You keep the $350 premium plus the $10/share gain ($1,000) — but miss the move from $195 to $200.
- If AAPL drops to $175: You keep the $350 premium, partially offsetting the $10/share paper loss. Effective cost basis drops to $181.50.
Key insight: Covered calls are NOT a hedge — they provide a small downside buffer (the premium) but do not protect against significant drops. If your stock falls 20%, the 2% premium you collected does not meaningfully offset the loss.
When Covered Calls Work Best (and Worst)
Best conditions: Sideways or slightly bullish markets. Elevated implied volatility (IV rank above 50%) — richer premiums for the same strike distance. Stocks you are comfortable holding long-term. Stocks without upcoming earnings or binary catalysts.
Worst conditions: Strongly trending markets (you cap upside and miss rallies). Before known catalysts where the stock could gap 5-15%. Stocks you are bearish on — just sell the shares instead. Low IV environments where premiums are thin.
The covered call trap: Many investors sell covered calls on stocks they love, then watch the stock rally 30% and get assigned at a much lower strike. They chase the stock back higher, negating months of premium income. If you believe a stock will rally significantly, do not sell covered calls against it.
How to Use Covered Call
- 1
Own (or Buy) 100 Shares
You need exactly 100 shares of the underlying stock per covered call contract. If you own the shares already, great. If not, buy 100 shares at current market price. This stock position is the 'cover' for the call you're about to sell.
- 2
Select the Call Strike and Expiration
Sell a call with a strike 3-5% above the current stock price, expiring in 30-45 days. This gives you a buffer before the stock gets called away while collecting meaningful premium. Higher strike = less premium but less chance of assignment. Lower strike = more premium but higher assignment risk.
- 3
Sell the Call and Collect Premium
Sell 1 call contract (representing your 100 shares) at your chosen strike. You'll receive the premium immediately. This premium is yours to keep regardless of what happens — it reduces your cost basis and provides income. Example: sell the $55 call for $1.50 = $150 income.
- 4
Manage the Position
If the stock stays below the strike: the call expires worthless, you keep the premium and shares. Sell another call for the next cycle. If the stock rises above the strike: your shares get called away at the strike price. Your profit = (strike - purchase price) + premium received.
- 5
Choose When to Roll
If the stock approaches your strike and you don't want to sell shares, 'roll' the call: buy back the current call and sell a new one at a higher strike and later expiration. You'll pay a small debit but maintain your shares while collecting more time premium.
Frequently Asked Questions
What is a covered call?
A covered call is an options strategy where you sell a call option against 100 shares of stock you already own. You collect the option premium as income. In exchange, you agree to sell your shares at the strike price if the stock rises above it by expiration. It generates 1-4% monthly income but caps your upside. It is one of the most conservative options strategies.
How much money can you make selling covered calls?
Covered calls typically generate 1-4% per month (12-48% annualized), depending on the stock's volatility, strike distance, and expiration chosen. Out-of-the-money calls with 30-45 days to expiration are the sweet spot for most income investors, typically yielding 1.5-3% per month.
When should I not sell a covered call?
Do not sell covered calls before earnings announcements (the stock could gap beyond your strike), when you are bullish and expect a significant rally (the call caps your upside), when implied volatility is very low (the premium is not worth the risk), or on stocks you want to exit.
What happens if my covered call gets assigned?
If your covered call is assigned, your 100 shares are sold at the strike price and removed from your account. You keep the premium you collected. Assignment typically happens at expiration when the stock is above the strike price, but can happen early near ex-dividend dates.
How Tradewink Uses Covered Call
Tradewink's trade router evaluates IV rank and account tier to determine when covered calls offer favorable risk/reward. When IV rank is elevated (above 50th percentile), the premium collected is richer, making covered calls more attractive. The system identifies positions in your portfolio where selling calls against them generates meaningful income without excessive assignment risk.
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