Covered calls feel like free money right up until the stock does something. Then every weakness in your process shows up at once. These are the five mistakes that come up over and over in real journals — and what the fix looks like.
Selling below your cost basis
The classic. The stock dips after assignment, the at-the-money premium looks fat, and you sell a call below what you effectively paid. Now a recovery doesn't rescue you — it ejects you at a locked-in loss. Know your effective basis (assignment price minus every premium collected) and treat it as a floor unless you've consciously decided to exit the position.
Chasing premium into earnings
That juicy weekly premium right before an earnings report isn't generosity — it's the market pricing a move that can blow through your strike in either direction. If you wouldn't hold the shares through the print without the call, the extra premium isn't paying you enough to change your mind.
Ignoring early assignment around ex-dividend dates
If your short call is in the money the day before the stock goes ex-dividend and the remaining extrinsic value is less than the dividend, assignment is likely — and the dividend you were counting on walks out the door with your shares. Check the ex-date before you sell, not after.
Holding to expiry out of stubbornness
When a call has decayed to its last 10–20% of premium, the remaining reward is tiny and the remaining risk is not. Buying back cheap winners and re-deploying is usually higher yield than squeezing the last nickel out of a position that can still reverse on you.
Never reviewing which strikes actually worked
Most traders couldn't tell you whether their 30-delta calls outperform their 20-delta calls, because nobody is keeping score. Premium capture rate, assignment rate, and annualized yield per strike choice — those three numbers settle every covered-call debate you're having with yourself. Track them per trade and the data will pick your strikes for you.