Binary Option: The Payout Sets the Odds
A binary option pays a fixed amount if a stated condition is true at expiry and nothing if it is not, with no partial outcome. Because a loss costs the whole stake and a win returns only a fraction of it, the payout ratio sets the win rate needed to break even.
How it works
A binary option pays a fixed amount if a stated condition is true at expiry — usually whether a price is above or below a level. If it is not, it pays nothing and the stake is gone.
There is no partial outcome, which is the structural difference from conventional options. A conventional option’s value moves with the underlying, so being more right pays more. Here one tick past the level pays what a hundred does.
Because a loss costs the whole stake and a win returns only a fraction, the payout ratio sets the win rate you need. At 80% on a win, break-even sits above five wins in nine.
And the ratio is set by the other side of your trade. The platform decides the payout and profits when you lose, and unlike a regulated market maker it quotes into no venue.
Which makes the expected value negative by design, before skill enters. The payout is chosen so the break-even rate sits above what the underlying honestly offers.
Who you are trading against
Sale of these contracts to retail clients is restricted or banned in several major jurisdictions. That is the regulatory position stated as information, and it is worth knowing first.
And many platforms still offering them operate outside those regimes. The protections behind choosing a broker — segregated money, a complaints process, recourse over a withdrawal — may then not exist. Marketing often arrives via an introducing broker paid on deposits.
There is no spread because the edge is already in the payout. A bid-ask spread can be read off the screen; this charge is folded into the ratio.
The price feed may not be an exchange feed at all. With no venue behind it there is no published volume to check against, and settlement rests on the counterparty’s number.
In practice
The expiries are minutes, and that is the tell. At a one-minute horizon the outcome is dominated by noise, which is where a fixed house margin collects most reliably.
And a gap settles the whole thing instantly. An opening gap through the level does not hand you a worse outcome than planned — it hands you the only outcome there is.
There is no stop loss and no early exit worth taking. That makes risk per trade unusually simple: the stake is the loss.
On this history a round trip costs 0.0098 price units — 2% of a median bar’s range, 45% of the smallest bar. That is a measurable cost; a payout ratio offers no equivalent figure.
Checking any all-or-nothing offer
The test works on any all-or-nothing proposition, whatever it is called. Write down three things first: what a win pays, what a loss costs, and the horizon you are being asked to predict.
Then solve for the win rate at which those two cancel. If a win pays 80% of the stake and a loss costs all of it, nine trades break even at five wins, so five in nine or below loses over time.
Then ask the harder question honestly. Can you beat that rate, at that horizon, repeatedly? Not once, and not across a run you happen to remember, but over enough trades for the average to assert itself.
If the horizon is sixty seconds the answer is almost certainly no, and that is not a judgement about your ability. It is a statement about what a sixty-second move contains.
What a binary option is not
It is not a conventional option. Value does not vary with the underlying, so being more right pays nothing extra.
It is not a contract with a published price. No exchange, no order book, no second quote.
It is not a beginner’s format. The very short horizon makes it the hardest one.
It is not a question of discipline. The break-even rate is fixed before the first trade.
When it fails
In a range the short expiry is a coin flip. A trading range removes the one thing directional analysis has to work with, and the payout does not widen to compensate.
Being right about direction and wrong about timing is a loss. Expiry is a deadline, not a target, so a move that arrives one bar late settles against you as a wrong call does.
A winning run will arrive, and it will feel like a method. On this history direction runs reach eleven bars; trading psychology covers why an ordinary streak reads as skill.
Raising the stake after a loss changes the speed, not the arithmetic. The break-even win rate is untouched by stake size, so a recovery sequence only shortens the time to the outcome.
And the counterparty risk sits outside every line above. You can read the market correctly and still end up arguing about a withdrawal, which is the why traders lose money page arriving from an unusual direction.
The original data
On this shared 576-bar history the base rate for a higher close is 52% over one bar, across 571
observations, and 54% over ten bars across 566 — from site/measure_series.py into
research/series-measurements.json. That 52% is what a short-expiry guess is worth.
At a payout of 80% of the stake on a win, with the full stake lost on a loss, nine trades break even at five wins: five wins return four units and four losses cost four units. Break-even therefore needs more than five in nine, above fifty-two in a hundred.
The distance between those two numbers is the platform’s margin.
The corpus says the same by omission. In research/broker-coverage.json, a scan of the 24,971
videos in research/search-study-corpus.jsonl, 78 carry “binary option” in the title, median 6,892
views, 48 channels, maximum 99,233.
Expectancy appears in zero of the 24,971, and so does risk of ruin. Win rate appears in 161 titles at a median of 13,711 views, probability in 61 at 3,118.
So the calculation that settles the question is the one nobody makes. Make it. Before placing anything, write down the stated payout, solve for the break-even win rate it implies, and compare that against the base rate for a coin-flip move at that expiry.
Related
Options is the conventional contract this one borrows its name from.
Probability is where the base rate comes from, and it is the number a payout has to clear.
And why traders lose money runs the same arithmetic over ordinary trading, where the costs are at least visible.
These were advertised to me constantly when I was starting out, and the pitch is well made — it looks like the simplest version of trading rather than the most extreme one. I did not work out what was wrong with it by being clever. I worked it out by writing the payout down next to the loss and doing the sum. If you have landed here because something was put in front of you, that is marketing working as intended, not a failure of judgement.
— Michael Whitman
This page is educational, not financial advice. Test every idea on your own charts before risking money.