The full guide
Options payoffs explained — calls, puts, spreads, and break-evens (a guide for Sri Lankan learners)
Reviewed and updated July 16, 2026 · Written for Sri Lankan investors and borrowers
Let’s be honest up front: options are not traded on the Colombo Stock Exchange. There is no local listed options market, so this guide will not help you place an options trade in Colombo. It exists for two groups of Sri Lankan readers — those investing in foreign markets where listed options exist, and those learning derivatives for professional exams, careers in finance, or plain intellectual curiosity.
What makes options worth studying is the payoff diagram: a simple picture of profit and loss at expiry across every possible price of the underlying asset. Once you can read and build these shapes, strategies that sound exotic become straightforward combinations of four basic positions.
The four building blocks
Every options strategy decomposes into long or short calls and long or short puts. A call is the right to buy at a fixed strike price; a put is the right to sell. Buyers pay a premium for the right; sellers collect the premium and take on the obligation. That asymmetry — limited loss for buyers, limited gain for sellers — is what gives payoff diagrams their characteristic kinks at the strike.
| Position | Maximum loss | Maximum gain | Break-even at expiry |
|---|---|---|---|
| Long call | Premium paid | Unlimited | Strike plus premium |
| Long put | Premium paid | Strike minus premium | Strike minus premium |
| Short call | Unlimited | Premium received | Strike plus premium |
| Short put | Strike minus premium | Premium received | Strike minus premium |
Break-evens: the premium always moves the goalposts
A common beginner error is thinking a call profits as soon as the underlying passes the strike. It does not — you paid a premium, and the underlying must rise past the strike by at least the premium before you are net positive. Buy a call with a strike of 100 dollars for a 5-dollar premium and your break-even is 105. At an expiry price of 115 you make 10 dollars per share: 15 of intrinsic value minus the 5 you paid.
Puts mirror this on the downside. A 100-strike put bought for 4 dollars breaks even at 96; at an expiry price of 85 it earns 11 dollars per share. Between the strike and the break-even lies a zone where the option finishes in the money yet you still lose part of your premium — the payoff diagram makes this zone impossible to miss.
Spreads: trading a slice instead of the whole distribution
Combine two options and you can cap both risk and reward. A bull call spread buys a call at one strike and sells another at a higher strike: buy the 100 call for 5 dollars, sell the 110 call for 2, and your net cost is 3 dollars. Maximum loss is that 3-dollar debit; maximum gain is the 10-dollar strike gap minus the debit, or 7 dollars; break-even is 103.
You have given up unlimited upside in exchange for a two-dollar subsidy on your entry — a sensible trade when you expect a moderate move, not a moonshot. Bear put spreads, straddles, strangles, and iron condors are all the same idea: stacking the four basic payoffs to isolate the price range you actually have a view on. The calculator above draws the combined payoff line so the net shape, break-evens, and capped zones are visible at a glance.
Expiry payoff versus today’s value
A payoff diagram shows profit at expiry. Before expiry, an option’s market value also includes time value — the possibility of further favourable movement — so the current profit-and-loss curve is a smooth line that only converges to the kinked expiry payoff as the clock runs out. Time decay means a long option can lose money even when the underlying drifts slightly in your favour.
This distinction is the single most common source of disappointment for new options buyers: being right about direction but too early, or right by too small a margin, still loses money. Payoff diagrams teach the destination; models like Black-Scholes describe the journey.
Practical cautions for Sri Lankan readers
Because options are unavailable on the CSE, any real trading happens through foreign brokers in foreign markets, which introduces layers of risk beyond the option itself.
- Confirm you can lawfully fund a foreign brokerage account under Sri Lanka’s foreign exchange regulations before opening one.
- Currency risk is real: a profitable US-dollar trade can shrink or grow in rupee terms as the exchange rate moves.
- Selling (writing) uncovered options carries potentially unlimited loss — treat short options as an advanced topic.
- Foreign tax treatment and Sri Lankan tax on foreign income are separate questions; take professional advice.
Sources & further reading
This guide is educational and reflects publicly available rules and market conventions at the review date. Tax rates, bank rates, and regulations change — verify current figures with the institution or the Inland Revenue Department before making a financial decision. Nothing here is financial, tax, or investment advice.