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Trading

This page covers how to actually buy, sell, and manage positions on Parti.

Buying a position

  1. Open a market and read the question carefully — note exactly what makes it resolve YES.
  2. Pick YES or NO.
  3. Enter an amount (how much USDG to spend) or a number of shares.
  4. The app shows you three numbers before you commit:
  5. Cost — what you'll pay now.
  6. Payout if you win — shares × $1.00.
  7. Fee — a small trading fee, shown up front.
  8. Tap Buy.

Your position appears in your portfolio immediately.

Selling a position

You're never locked in. Open your position and tap Sell to close all or part of it at the current market price. Selling is how you:

  • Lock in a profit when the price has moved your way.
  • Cut a loss if you've changed your mind.
  • Free up cash to withdraw or to trade elsewhere.

Order types

For most people, the default Buy / Sell buttons are all you need — they fill right away at the best available price (a market order). If you want more control, Parti also supports limit orders:

Order What it does Use it when
Market Fills now, at the best prices on the book You want in or out immediately
Limit Rests on the book at the price you name until someone takes it You have a target price and can wait

A limit order may fill partially, fully, or not at all — it only executes at your price or better.

The order book and price

Each market has a live order book showing the best buy (bid) and sell (ask) prices and how many shares are available at each. The price you see on a market card is the latest traded / mid price. The book updates in real time as people trade.

Larger orders can "walk the book" — filling part at the best price and the rest at slightly worse prices. The app shows your average fill price so there are no surprises.

Fees

Parti charges a small fee on trades, always shown before you confirm. A portion of fees can be shared with creators and referrers, but the price you're quoted already accounts for the fee — you never get charged a hidden amount after the fact.

Tips for good trades

  • Read the resolution criteria. Two similar-sounding markets can settle on very different conditions.
  • Mind the spread. If the gap between buy and sell prices is wide, a limit order may get you a better fill than a market order.
  • You can't lose more than you put in. Your downside on any share is capped at what you paid for it.

Next: Resolution & payout →