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Ultramarkets lets you trade prediction market movements with up to 10x leverage. You deposit margin, we lend you buying power from the vault, and execute your position directly on Polymarket.

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Opening a Position

1

Choose a Market

Pick your direction (Long or Short)
2

Set Your Margin

Minimum $10 USDC
3

Select Leverage

Up to 10x, varies by market
4

Choose Order Type

Market order (immediate execution) or limit order (set a target price)
5

Review and Confirm

We execute the trade on Polymarket

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Market Orders vs Limit Orders

Ultramarkets supports two order types for opening leveraged positions:
  • Market orders execute immediately at the current market price. Open fee is 0.5% of margin. Single fill: your position opens in one transaction.
  • Limit orders let you set a target price. Your order rests on the Polymarket CLOB until the price is hit. Open fee is 1.5% of margin. Partial fills are supported, and your position builds up incrementally as fills arrive. Unfilled capital is refunded on cancellation or expiry.
Limit orders lock your capital (margin + vault loan + fee) upfront. If the order is partially filled and then cancelled, unfilled capital is refunded proportionally. See Limit Orders for full details.
Example (market order): You deposit $1,000 margin with 10x leverage.

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Position Lifecycle

Once open, your position has three possible endings:

Manual Close

You close it manually. Take profits or cut losses whenever you want.

Liquidation

If the market moves against you and your health drops to 45%, we close your position to protect the vault.

Auto-Close

Every market has a close date. All positions close automatically at this time.

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Market Close Dates

Every market on Ultramarkets has a predetermined close date, set when the market is listed. This is not a fixed rule like “72 hours before resolution.” Close dates vary by market type:
The close date is always visible in the market details and when previewing a position. Plan accordingly.

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Trading Probability, Not Outcomes

This is the mental shift that matters: you’re trading probability movements, not betting on outcomes. You don’t need Trump to win to profit from a Trump YES position. You just need the probability to rise before the market closes. If you enter at 40% and exit at 50%, you profit. Whether Trump actually wins is irrelevant to your trade.
This is what makes leveraged prediction markets work. You capture volatility during the trading window, then exit before resolution.