Placing Orders

How to execute trades on the Doji terminal.

Doji provides a streamlined order entry form that talks directly to the Polymarket CLOB.

Standard Order Flow

Choose Your Side

Select Yes (Green) or No (Red). The order form will adjust its styling and calculations based on your choice.

Set Your Price

Enter the maximum price you are willing to pay (or receive) per share. Prices range from $0.01 to $0.99.

Enter Size

Specify how many shares you want to buy or how much USDC you want to spend. Doji automatically calculates the remaining variable for you.

Submit & Sign

Click the Trade button. You will be prompted to sign the transaction with your Magic-powered wallet. This signature authorizes the match on the CLOB.

Order Types

Doji supports the full suite of Polymarket order types:

  • GTC (Good-Til-Cancelled): Your order stays on the book until filled or manually cancelled. GTC orders can partially fill over time as different traders match portions of your order.
  • GTD (Good-Til-Date): Like GTC, but auto-expires at a specified time if not filled.
  • FOK (Fill-Or-Kill): The order must be filled immediately and entirely, or it is cancelled.
  • FAK (Fill-And-Kill): Fills as much as possible immediately, then cancels the remainder. Use this for market-style entry when you want quick execution.

Post-Only

GTC and GTD orders can be marked post-only. A post-only order will only rest on the book — if it would match immediately, it's rejected instead of executed. This guarantees you're always the maker.

All orders on Polymarket are technically limit orders. A "market order" is a limit order priced aggressively enough to fill immediately against resting orders. Most traders use GTC for limit orders and FAK for market-style entry.

Understanding the Displayed Price

The price shown on a market is the midpoint of the best bid and best ask. If the spread is wider than $0.10, the last traded price is shown instead. You won't necessarily trade at the displayed price — you'll pay the ask when buying or receive the bid when selling.

Market Constraints

  • Tick Size: The minimum price increment (usually $0.01 or $0.001).
  • Minimum Order: $5.00 USDC is the standard minimum for orders on the Polymarket CLOB.

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