Core method

How a covered call calculator works

A covered call calculator combines the stock position with premium received from selling a call. At expiration, shares are capped at the strike if the call is assigned.

The simplified formula

If target price is above the strike, stock value is capped at the strike. If target price is below the strike, stock value follows the target price. In both cases, premium received is added to the stock outcome.

BreakevenShare basis - premium received
Maximum simplified profitStrike - share basis + premium
Upside capShares may be called away above the strike
Downside exposureStock-like downside, reduced only by premium

What the calculator leaves out

Real option pricing before expiration can move with implied volatility, time decay, dividends, rates, liquidity, and assignment expectations. Taxes and broker treatment can also change the practical outcome.

Primary reading: OIC covered call strategy overview · OIC options pricing overview · FINRA options overview · Investor.gov options overview · OCC options disclosure document

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Related lessons and tools on this site

Start with the main guideCovered Call Calculator and Return EstimatorCovered Call Breakeven FormulaCovered Call Maximum Profit FormulaCovered Call Downside RiskCovered Call Assignment RiskCovered Call vs Cash-Secured PutCovered Call Calculator ExamplesCovered Call Trade ChecklistCovered Call Calculator FAQSources and Methodology for Covered Call Calculator

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Reviewed/updated 2026-07-30 · SourcesMethodologyRisk disclosureCorrections

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