How to open a position
Choose your prediction market.
Select Buy or Sell depending on whether you believe the outcome will occur.
On the order screen, enter your preferred order size in-dollars or in-contracts.
Review the order details.
Tap Place order when you’re ready.
You’ll see a confirmation screen and receive a notification once your order is filled or rejected.
You can increase your position anytime before the event ends, as long as the market has sufficient liquidity.
How do I calculate the cost to open a position?
Before you place the trade, the “Potential payout” tooltip shows a clear breakdown of:
Number of contracts
Estimated average price (final price may vary slightly depending on order size and liquidity)
Total fees
Estimated total cost = (Quantity × Average Contract Price) + Total Fees
Once filled, the actual amount paid (including final price and fees) will appear in Portfolio > History > Order.
Your maximum loss is always limited to the total amount you paid to open the position, including fees.
Example 1 – Opening a sports position (US Customers)
Contract price: $0.19
Your order: 10 contracts (each with a $1 contract size)
Fee per contract: 0.07 × $0.19 × (1 − $0.19) = $0.0107. Total fees: $0.0107 × 10 = $0.107, rounded up to the nearest cent = $0.11
Estimated total cost = (10 × $0.19) + $0.11 = $2.01
Once the order is filled:
Actual amount paid = (10 × $0.19) + actual fees from the exchange = $2.01 (fee shown live on the trade slip before you confirm)
If only a partial fill occurs (e.g., 7 contracts), the cost is automatically adjusted to the filled quantity: (7 × $0.19) + recalculated fees, and the unfilled portion (of 3 contracts) is cancelled.
Your maximum loss is always limited to the amount you actually paid plus fees.
Example 2 – Opening any position (Customers outside US)
Contract price: $0.19
Your order: 10 contracts (each with a $1 contract size)
Fee per contract: $0.02. Total fees: $0.02 × 10 = $0.20
Estimated total cost = (10 × $0.19) + $0.20 = $2.10
Once the order is filled:
Actual amount paid = ($0.19 + $0.02) × 10 = $2.10
If only a partial fill occurs (e.g., 7 contracts), the cost is automatically adjusted to the filled quantity: ($0.19 + $0.02) × 7 = $1.47, and the unfilled portion (of 3 contracts) is cancelled.
Your maximum loss is always limited to the amount you actually paid plus fees
Disclaimer: Trading involves risk and may not be appropriate for all. By trading you risk losing all of your money used to enter any transaction, including fees. You should carefully consider whether trading is appropriate for you in light of your investment experience and financial resources. Any trading decisions you make are solely your responsibility and at your own risk.
This document is a translation of its English version. In case of conflict, the English version shall prevail.