Long Call Calculator
What a bought call costs, the most it can lose, where it starts making money and how far the stock has to travel to get there — plus the profit or loss at every settlement price, drawn and tabulated.
Long call calculator, explained
Why is the break-even above the strike?
Because you paid for the option. A long call only starts returning anything at all above the strike, and the first thing it returns goes to earning back the premium — so break-even is strike + premium, not the strike. At any settlement price up to the strike the call expires worthless and you are down the full premium; between the strike and break-even it has some value but less than you paid. This is the single most common surprise for a first call buyer, which is why the page states the percentage move from today’s price needed to reach break-even rather than leaving it to be worked out.
Is the max loss really just the premium?
Yes, and that is the whole appeal: a bought call cannot lose more than it cost, however far the stock falls, because you hold a right and not an obligation. Max loss is premium × 100 × contracts, realised at any settlement price at or below the strike. The flip side is that losing the entire premium is the normal outcome rather than a tail case — an out-of-the-money call that expires a dollar below its strike is a total loss, which is why position sizing matters more here than on a stock.
What are intrinsic value and time value?
The two halves of what you paid. Intrinsic value is what the call would settle for if it expired this second — max(spot − strike, 0) — and time value is everything else in the quote, premium − intrinsic. The split is a definition rather than a model, so no volatility input is needed to compute it. Time value is the part that decays to zero by expiration; how fast is theta decay, and how much of it the market is charging in the first place is implied volatility. A negative time value means the quote is below intrinsic, which is a stale or crossed quote rather than free money — the page says so instead of hiding it.
What if I sell the call before expiry instead of holding it?
Then these numbers are a floor, not the answer. Everything here is the payoff at expiration, where an option is worth exactly its intrinsic value — exact arithmetic with no model that can be wrong. Sell earlier and you also collect whatever time value is left, which takes a pricing model and a volatility assumption to estimate: that is what the Black-Scholes calculator is for. If the call is going into an earnings print, the thing that will move its price most is not direction but the volatility collapse afterwards.
Why can the stock go up and the call still lose?
Because being right about direction is not the bar — clearing break-even is. A stock that rises 4% into a strike 5% away leaves the call worthless, and even past the strike the premium has to be earned back first. The table on this page makes that visible at every price, and the probability-of-profit calculator puts odds on it: the chance of finishing past break-even is always lower than the chance of finishing in the money, and delta is neither of those things.
Where do I find calls worth running through it?
Discover screens the optionable universe daily, and every ticker has an option chain with real premiums plus IV rank — worth checking before buying premium, since a high reading means you are paying up. For the mechanics of picking a strike and an expiry, the long-call guide covers it, and the expected-move calculator tells you whether the strike you fancy is even inside the range the market is pricing.
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Educational, not investment advice. These are standard models applied to the numbers you enter — they describe what the maths implies, not what the market will do.