Premium collected is not profit: three numbers that flatter a seller's record

1. Premium collected

The premium you take in is the most you can make, not what you made. A seller who collects a large sum over a year and pays most of it back on a few bad trades has a small profit and a large headline. Track realized profit after every buyback, roll and assignment, and compare it with the premium. The share of premium you actually keep is the number that tells you whether the losers are paid for.

For a wheel, add the shares. Premium on covered calls is income only if the shares did not lose more over the same months. Compare the whole position, shares plus premium, against simply holding the same shares or the index on the same dollars.

2. Return on deployed capital

Many sellers quote return on the cash that was tied up in positions. If a tenth of the account was deployed on average, a strong-looking return on deployed capital can be a modest return on the account. The account is what you live on, so divide by the whole account, idle cash included, and credit the idle cash only with the interest it actually earned.

Drawdown has the same trap in reverse. Adding up each position's worst moment overstates the account's worst day, because those worsts happened on different days. Net every position at the same day's close and take the worst of those totals.

3. A win rate that skips rolls and assignments

Rolling a threatened put buys back the old contract at a loss and opens a new one. The loss is realized on the day of the roll even if the new position later expires worthless, so a record that counts the rolled position as one eventual win overstates the win rate and hides the cost. Assignment is the same: buying shares above the market price is a loss at that moment, whatever the covered calls collect afterwards.

Count each closed contract as its own trade, with its own profit or loss. Our lesson on win rates shows why the ratio of the average loss to the average win matters more than the win rate itself.

What to track instead

Three numbers tell you whether the strategy is working: profit per trade as a share of the collateral, the average loss divided by the average win, and the worst week for the whole account netted on the same day. Then compare the result with the passive alternative on the same dollars over the same months, which for a premium seller is usually a covered call fund or the plain index. Our trading journal guide has a layout that does this.