How Covered Call Profit Works
A covered call generates profit from two sources: the option premium you collect when you sell the call, and any capital appreciation in the stock up to the strike price. Your profit is capped at the strike price because if the stock rises above that level, the option will be exercised and your shares will be called away. This trade-off between capped upside and guaranteed premium income is the fundamental characteristic of the covered call strategy.
Below the breakeven price, you begin to incur a net loss. The breakeven point equals your purchase price minus the premium received. Between the breakeven and the strike price, you earn a profit. At any price above the strike, your profit is maxed out because additional stock gains are offset by the obligation to sell shares at the strike.
Covered Call Profit Formulas
- 1Since $53 < $55 (below strike), the option expires worthless.
- 2Stock gain = ($53 - $50) × 100 = $300
- 3Premium income = $2.00 × 100 = $200
- 4Total profit = $300 + $200 = $500
- 5Return on investment = $500 / ($50 × 100) = 10.00%
- 6Breakeven price = $50 - $2 = $48.00
- 7Maximum profit = ($55 - $50 + $2) × 100 = $700 (if stock >= $55)
Profit at Different Stock Prices
| Stock at Expiry | Stock P&L | Option P&L | Total Profit | Return % |
|---|---|---|---|---|
| $40 | -$1,000 | +$200 | -$800 | -16.00% |
| $45 | -$500 | +$200 | -$300 | -6.00% |
| $48 (Breakeven) | -$200 | +$200 | $0 | 0.00% |
| $50 | $0 | +$200 | +$200 | 4.00% |
| $53 | +$300 | +$200 | +$500 | 10.00% |
| $55 (Strike) | +$500 | +$200 | +$700 | 14.00% |
| $60 | +$500 | +$200 | +$700 | 14.00% |
| $70 | +$500 | +$200 | +$700 | 14.00% |
Notice how profit stays at $700 whether the stock closes at $55, $60, or $70. This is the core tradeoff of covered calls: you give up unlimited upside in exchange for guaranteed premium income.
Understanding the Profit/Loss Zones
- Loss Zone: Stock price below breakeven ($48). Losses increase as the stock falls further.
- Reduced Loss Zone: Stock price between breakeven ($48) and purchase price ($50). You have a loss on the stock but the premium partially offsets it.
- Profit Zone: Stock price between purchase price ($50) and strike price ($55). You earn stock appreciation plus full premium.
- Maximum Profit Zone: Stock price at or above strike ($55). Profit is capped at (Strike - Purchase + Premium) x Shares.
Accounting for Commissions and Fees
Real-world covered call profits are reduced by brokerage commissions and potential assignment fees. Most brokers charge $0.50-$0.65 per contract for options trades, and some charge an additional fee if the option is exercised (typically $15-$25). On small positions, these costs can meaningfully reduce your percentage return. For example, $1.30 in round-trip commissions on a $200 premium is a 0.65% drag. Always factor in commissions when evaluating whether a trade is worth executing.
Steps to Calculate Your Covered Call Profit
When to Close Early for Profit
You do not have to hold a covered call to expiration. Many experienced traders close positions early by buying back the call when 50-80% of the maximum premium profit has been captured. For example, if you sold a call for $2.00 and it is now worth $0.40, you have captured $1.60 (80%) of the premium. Closing early frees your capital for the next trade and reduces the risk of a late adverse move in the stock.