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Buy-Write Strategy: Cost, Income & Return

A buy-write buys the stock and sells the call together. Because both happen at once, the cost of the whole entry matters: gross outlay, net debit, premium and return if the shares are called away.

Educational content. Last reviewed October 3, 2026. Not investment advice.

Entry economics

The gross stock cost is shares times price. The net debit subtracts the call premium. Fees and financing interest, if any, raise the break-even slightly.

Example numbers throughout this guide are hypothetical and are for learning only.

Worked example

Buy 100 shares at $50.00, sell the $52.50 call at $1.40, with $0.65 in fees.

Gross cost = $50.00 x 100 = $5,000
Net debit = $5,000 - $140 = $4,860
Breakeven = ($4,860 + $0.65) / 100 = $48.61
Maximum profit = ($52.50 - $50.00) x 100 + $140 - $0.65 = $389.35
Called-away return = $389.35 / $4,860 = about 8.0%
Stock at expirationTotal P/L
$45-$360.65
$48.61Approximately $0 (+$0.35)
$50+$139.35
$52.50 or higher+$389.35

Reading the return

The called-away return is a ceiling, not a forecast. It applies at or above the strike and depends on the stock finishing there. Below breakeven you lose money; if the stock falls to zero, the loss approaches the net entry outlay.

Budget and execution checklist

A gross purchase budget and a net entry debit answer different questions. Buying 100 shares at $50 requires $5,000 of gross stock purchasing capacity in the example. Receiving $140 from the call does not make it appropriate to multiply a saved budget by assumed leverage. Broker order handling and financing terms still matter.

Review the share price and option quote together, ideally from a consistent market session. Combining an old option premium with a newer stock price can materially distort the apparent return. Recheck the combined order's achievable price and account for commissions on the actual execution.

Income is not the same as called-away return

The $140 premium is the income component. The $389.35 called-away result also includes $250 of stock appreciation to the strike, less the assumed fee. That additional appreciation only occurs if the position reaches the specified outcome. It is not an extra payment made by the option buyer at entry.

If the stock remains at $50, the illustrated net result is $139.35, not $389.35. If it falls to $45, the premium only partly offsets the stock loss. Use the payoff table to compare these scenarios instead of treating the maximum figure as an expected return.

The structure, drawn

Buy-write

Shares and a short call opened together, so the premium lowers the effective cost of the shares.

Illustrative example
  • Buy
    100 shares
  • Sell
    $52.50 call

Profit zoneLoss zoneStock priceBreakeven

Example stock
$50.00
Call premium
$140
Breakeven
$48.61
Total position max profit
$389.35
Max loss
-$4,860.65
Evaluated at
Expiration

Includes the signal's option premium, fees and financing interest. Stock changes are measured from the signal entry price.

Buy-write, built as one order

Hypothetical example. Not a quote or a result.

Illustrative example

  1. Buy 100 shares

    Entry $50.00 per share in the example, $5,000 before fees.

  2. Sell one $52.50 call

    The call is sold against the new shares. Gains above $52.50 are given up.

  3. Collect the premium

    $1.40 x 100 = $140. The model also deducts $0.65 in fees, so breakeven is about $48.61.

  1. Below the short strike

    Stock $49.88

    $126.85 P/L

    The call expires unused. You hold shares bought at $50, cushioned only by the premium.

  2. At the short strike

    Stock $52.50

    $389.35 P/L

    Payoff is at its maximum: premium plus the stock rise to the strike.

  3. Above the short strike

    Stock $55.13

    $389.35 P/L

    Shares may be called away at $52.50. The payoff stays capped.

Risks

  • Full stock downside remains.
  • Upside is capped at the strike.
  • Margin interest increases cost.
  • Execution of both legs may differ from displayed quotes.

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