A Long Call gives its buyer the right to buy an underlying asset at the strike price under the contract’s terms. The buyer pays a premium, and the premium paid is generally the maximum risk for a Long Call position. This article explains the mechanics; it is not a trading recommendation. See TFEX’s Long Call lesson and the actual product’s contract specifications.
Payoff formula at expiration
For one unit of a Long Call before costs, gross payoff at expiration = max(underlying asset price − strike price, 0). Approximate breakeven = strike price + premium per unit. Both formulas need to be adjusted for the contract multiplier, expenses, and the settlement rules of the actual product.
What the example does and does not tell us
The stored transcript mentions Strike 800, Premium 21, and 10 contracts. Looking only at one unit, the gross breakeven would be 821 before the multiplier and other costs. Total profit or loss should not be calculated because the expiration date, contract multiplier, fees, and position-adjustment details are missing. These figures are an example from the video, not current prices.
Option prices can change before expiration
An option’s market price may be affected by the underlying price, time remaining, volatility, and supply and demand. A payoff formula at expiration does not predict the option’s price before expiration. A buyer may close a position before expiration, but the actual closing price depends on the market and product terms.
Recalculate the combined position before adding a Short Call
Selling an additional Call creates a separate position with different obligations and risks. It may change the payoff and limit gains in some structures, but the outcome depends on the strike prices, number of contracts, expiration dates, and how the legs are paired. Do not assume that adding a leg simply “locks in a profit” without reviewing the total position risk.
Checklist before making a decision
- Read the market or provider’s contract specifications and multiplier.
- Calculate the total premium, fees, and breakeven.
- Understand the expiration date, settlement method, and what happens if the contract expires.
- If the position has multiple legs, calculate the combined outcome and check margin requirements.
- Set an acceptable loss limit and do not use money needed for essential expenses.
Sources
This summary uses the stored transcript only; the video’s audio and visuals have not been independently verified. If contract information is incomplete, do not use this example to calculate a real trade.