Practical rules and hard-won wisdom from experienced covered call sellers.
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The 50% Rule
When your short call has lost 50% of its original value, close it. Don’t wait for expiry. You’ve captured the majority of your profit and freed up capital for a new, higher-premium opportunity. The last 50% takes just as long but carries more gamma risk.
Close at 50% profit → redeploy capital
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Always Check Earnings Dates
Never sell a covered call expiring after an earnings announcement unless you specifically want earnings IV. Stocks can move 10–20% on earnings. If the announcement falls within your expiry window, choose a different expiry or skip the trade.
No earnings within the expiry window
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Delta Is Your Assignment Probability
A 0.30 delta call has roughly a 30% chance of being assigned — meaning you keep the full premium about 70% of the time. Most income-focused traders stay between 0.20 and 0.35 delta for this balance of income vs. risk.
0.25–0.35 delta = 65–75% win rate
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IV Rank Matters More Than IV
A stock with 40% IV sounds high — but if it typically trades at 60%, you’re selling cheap premium. IV Rank tells you where current IV sits relative to the past year. Only sell when IV Rank is above 30 — the most overlooked filter by beginners.
IV Rank > 30 before selling any call
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Rolling Is Your Get-Out-of-Jail Card
If your covered call goes deep in-the-money, you can roll it — buy it back and sell a new call at a higher strike and/or later expiry. Only roll for a net credit, never a debit. Rolling can turn a losing trade into a breakeven.
Roll out and up for a credit → never a debit
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The Math That Makes It Work
Selling 8 covered call cycles per year at 2% premium each = roughly 16% annual premium income on top of any stock appreciation. Even in flat markets, that 16% can significantly outperform buy-and-hold over time.
8 cycles x 2% = ~16% annual premium income
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Avoid the Final Week (Gamma Risk)
In the last 5–7 days before expiry, gamma spikes dramatically. A small move in the stock causes a huge move in the option price. Professional traders close or roll at 21 DTE to avoid this entirely.
Close or roll at 21 DTE — no exceptions
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Only Sell Calls on Stocks You Want to Own
The strategy works best when you genuinely want to hold the underlying long-term. Assignment shouldn’t feel like a loss — it should feel like selling at a price you’re happy with. If you’d be upset losing the shares, pick a higher strike.
Would you be happy selling at the strike price?