From Signal to Position: How PolySouq's Up/Down Windows Let You Act on a Market Read Without Leverage

What is a prediction market, and why should a signal trader care?

A prediction market is a venue where a question about the future is traded as a contract. Each contract has two sides, YES and NO, and a price between 0 and 100 that moves as people buy one side or the other. That price is the market's probability estimate: a YES trading at 35 means the crowd currently gives the outcome a 35% chance. When the event resolves, the correct side is worth 100 and the incorrect side is worth 0.

If you follow signals, you already think in these terms. A signal that says 'long gold, target 2,480, invalidation 2,420' is a claim that gold is more likely to reach the target than the stop over the stated horizon — a probability judgement. A prediction market lets you express it as exactly that, with the size you choose, instead of translating it into lots, pips and margin.

PolySouq is a prediction platform built for the Arab world, Arabic-first with a complete English version, and its catalogue is deliberately regional: Gulf football, the Saudi and UAE stock markets and OPEC decisions alongside global crypto, forex and commodity windows. This guide covers the parts that matter to a signal trader, with the payout arithmetic worked in dollars so you can check it yourself.

The Up/Down windows: Bitcoin and Ethereum every five minutes, gold and EURUSD by the session

The closest thing PolySouq offers to a conventional directional trade is the Up/Down window. The question is always the same: will the price at the end of the window be higher than the price at the start? You buy Up or Down at the displayed probability, the window closes, the reference price is read from public sources, and the market resolves.

For Bitcoin and Ethereum the shortest frame is five minutes, which is why these windows appeal to people who already scalp crypto off a signal. There are also 4-hour, daily, weekly and monthly frames for reads that need more room. For forex and commodities the windows run on gold (XAUUSD), oil (USOIL), EURUSD, USDJPY and silver, which are the same instruments most signal services publish on.

There is no entry price to defend and no stop to be hunted: the only thing that matters is where the price sits at the close relative to the open.

How the parimutuel payout works, in dollars

PolySouq does not match you against a counterparty at a fixed price the way an order book does. It uses a parimutuel pool: all the money staked on Up sits in one pot, all the money staked on Down sits in another, and when the window resolves, the people on the correct side share the money from the incorrect side in proportion to what they staked. A 10% commission is taken only from the losing pool before it is distributed. There is no deposit fee, no monthly fee and no spread.

Take a 5-minute Bitcoin window where $600 has been staked on Up and $400 on Down. You put $50 on Up, making the Up pool $650. The window closes higher, so Up is correct. The losing pool is $400; the platform keeps 10% of that, $40, and distributes the remaining $360 to the Up side. Your share is 50 ÷ 650 of $360, which is $27.69. Your stake comes back too, so the wallet receives $77.69 on a $50 position. Had the window closed lower, you would have lost the $50 and nothing more.

Two edge cases are worth knowing because they are unusual. If nobody backed the losing answer — you were the only participant, or everyone happened to be right — there is no losing pool to share, and every stake is refunded in full. Cancelled or voided markets are also refunded in full. In other words, you cannot lose money to an empty market.

Buy-only and unleveraged: what changes versus acting on a CFD signal

The mechanics above produce a different risk profile from a leveraged trade. PolySouq is buy-only: you buy YES or NO (Up or Down) and hold it to resolution. There is no leverage, no margin, no spread, no overnight funding, and no way to be taken out early by a wick. What you give up is flexibility — you commit for the length of the window — and, as with any position, you can lose the full amount you staked.

• Maximum loss is the stake. A $20 position can lose $20. It cannot lose $200 because the market gapped through a level.
• No spread, no commission on entry. The only cost is the 10% taken from the losing pool at resolution, and only if there is a losing pool.
• No stop-loss to place. The window does the timing and the close does the judging, however ugly the path was.
• Size is in dollars, not lots. No pip value, contract size or margin requirement to compute.
• Holding is the only option. You cannot reduce or add to a position mid-window, so choose the frame that matches the horizon of your read.

What else you can trade on PolySouq

Up/Down windows are the entry point for a signals audience, but most PolySouq events are multi-outcome: three or more answers to one question, each priced as its own probability — which of eight clubs wins a league, where the next rate decision lands. Football is covered by fixture with 1X2 markets across seven leagues, and the regional strand runs from Tadawul IPOs to Dubai property.