Catalyst offers markets on the things people actually follow: crypto prices, election outcomes, earnings reports, tech releases, entertainment, and more. Every market is powered by real Polymarket data. Browse by category, read the About section, and trade when you're ready.
Placing a trade
Open the Trade tab and select a market
Review the market question, current price, and scroll below the chart to read the About section
In the order ticket on the right, choose Buy
Select your side — YES or NO (or UP / DOWN on price direction markets)
Choose your order type from the dropdown — Buy in dollars, Buy in contracts, or Limit Order
Enter your size
Review Total cost and Total payout
Click Buy to submit
Maximum position size: $1,000 per market. Your current balance and any existing position in that market are shown in the order ticket before you submit.
After your order fills
The position appears in your Portfolio and in the Positions panel on the right side of the Trade page
Your Open P&L updates as the market price moves
Your Realized Account Balance does not change until you sell or the market settles
Selling before resolution
You do not have to wait for a market to resolve. You can sell all or part of your position at any time before the event concludes.
Open the market you want to sell
Click Sell in the order ticket
Your current position is shown — contracts held, average price, total cost
Choose Sell in Contracts from the dropdown
Enter how many contracts you want to sell — use the quick buttons (1, 5, 10, Max) or type the amount
Review Total cost and click Sell
Full sell vs. partial sell
Action | What happens |
Full sell | Closes the position completely. If combined realized profit is $300 or more, counts as a qualifying trade |
Partial sell | Reduces your position and locks in profit on the portion sold. Does not count as a qualifying trade until the remaining contracts are also closed |
Example: You hold YES contracts in "Will Anthropic release a new model by June 30?"
The price moves in your favor
You sell half your position to lock in profit and keep the rest open
The partial sell does not count as a qualifying trade yet
Once you close the remaining contracts, if combined realized profit is $300 or more, the full round trip counts as one qualifying trade
Canceling an open order
You can cancel any open limit order before it fills. Go to Portfolio → Order History, find the open order, and click Cancel. Market orders execute immediately and cannot be canceled. Partially filled orders can still be canceled — only the unfilled portion is canceled.