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Covered Calls: Premium, Breakeven & Assignment

A covered call sells one call against every 100 shares you own. It converts some potential upside into premium today. This guide separates the premium from the whole-position result, because they are not the same number.

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

How the position is built

You own 100 shares and sell one call at a strike above the current price. The buyer pays a premium, quoted per share. One contract controls 100 shares, so the cash received is the premium times 100.

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

Worked example

Stock $200, sell the $210 call for $4.20 with 13 days to expiration.

Premium income = $4.20 x 100 = $420
Breakeven on the stock = $200 - $4.20 = $195.80
Maximum whole-position gain = ($210 - $200) x 100 + $420 = $1,420
Stock at expirationStock P/LCall P/LTotal
$180-$2,000+$420-$1,580
$195.80-$420+$420$0
$200$0+$420+$420
$210+$1,000+$420+$1,420
$230+$3,000-$1,580+$1,420

Premium income is not total return

TradingSignalAI's income metric is premium-only and excludes the change in the stock. The payoff chart is the whole-position view measured from the signal reference price, not from your historical cost basis. If you bought the stock at a different price, your actual result differs.

Choosing a strike

A strike closer to the stock pays more premium but raises the chance the shares are called away and caps the upside sooner. A farther strike pays less and leaves room to rise. Delta is a rough, non-guaranteed guide to that chance.

Review the shares before the option

A covered call begins with a stock position, not with a premium target. Decide whether you are willing to keep the shares through a decline and sell them at the strike. Compare the whole-position dollar result with simply holding the stock. A large call premium does not make a weak underlying business safer.

Before selling, check the number of complete 100-share lots, the proposed expiration, any earnings date and the ex-dividend date. Consider whether assignment would create a taxable sale or remove shares you intended to hold. Those decisions depend on your circumstances and are not captured by an opportunity ranking.

What a changing quote means

Suppose the illustrated $4.20 premium falls to $3.80 before your order fills. The premium income becomes $380 and the reference-based breakeven rises from $195.80 to $196.20. The strike has not changed, but the economics have. Recalculate using your actual fill and commissions.

If you buy the call back before expiration, the final outcome is no longer just the expiration diagram. Include the repurchase cost, stock sale proceeds if any, and fees. Keeping the call premium at entry does not mean the entire position is profitable.

The structure, drawn

Covered call

Shares plus a short call: premium is collected, upside stops at the strike, and the stock can still fall.

Illustrative example
  • Own
    100 shares
  • Sell
    $210 call

Profit zoneLoss zoneStock priceBreakeven

Example stock
$200.00
Premium income
$420
Breakeven
$195.80
Total position max profit
$1,420
Max loss
-$19,580
Evaluated at
Expiration

Assumes 100 already-owned shares. Total-position P/L includes stock changes from the $200.00 signal reference, not historical cost basis. The existing Max profit income metric remains premium-only.

Covered call, built step by step

Hypothetical example. Not a quote or a result. Premium income and total position payoff are different figures.

Illustrative example

  1. Own 100 shares

    Reference price $200.00 per share, a scenario baseline rather than your real cost basis.

  2. Sell one $210 call

    Strike is 5% above the stock. You give up gains above $210 at expiration.

  3. Collect the premium

    $4.20 bid x 100 = $420, received up front, before fees.

Premium income only

$420

The scanner's premium figure. Excludes any stock gain or loss.

Total covered-position payoff, best case at expiry

$1,420

$420 premium plus $1,000 of stock gain from $200 to the $210 strike. Breakeven $195.80, which is the $200 reference minus the premium.

  1. Below the short strike

    Stock $199.50

    $370 P/L

    The call expires unused. You keep shares and premium, and stock losses still count against you.

  2. At the short strike

    Stock $210.00

    $1,420 P/L

    Total position payoff is at its maximum. The call has no value at expiration.

  3. Above the short strike

    Stock $220.50

    $1,420 P/L

    Shares can be called away at $210, so the payoff stays capped however high the stock goes.

Risks

  • Stock downside beyond the premium is yours.
  • Upside above the strike is forfeited.
  • Early assignment can occur, particularly near dividends.
  • Taxes and commissions are not in the example.

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