Trading (Buy & Sell)
Before You Start
To trade, you need:
A connected wallet (see Connecting Your Wallet)
USDC on Polygon network (for buying positions — see Getting USDC on Polygon)
A small amount of POL for gas fees (< $0.01 per trade)
Buying
From the Dashboard (Quick Buy)
Enable Quick Buy in the wallet dropdown menu
Set your preferred amount (e.g., $50)
Find a green-edge row
Click the green BUY button — the order executes immediately
From the Detail Page
Navigate to a specific market (click a dashboard row)
Enter your desired cost amount in the dollar input field
Below the input, you'll see:
Estimated shares you'll receive
Estimated profit based on current edge
Click BUY to execute
The cost input auto-fills with either your Quick Buy amount or the optimal amount based on orderbook analysis.
Order Execution
Orders are placed as market orders on Polymarket's CLOB (Central Limit Order Book)
Your slippage tolerance (default 2%) protects against price movement
Minimum order size: $25
All orders include builder attribution (this is how we earn revenue to keep the service running)
Selling
From the Dashboard
When you have an open position, the BUY button changes to a red SELL button showing your position size and P&L. Click it to sell your entire position.
From the Detail Page
Your position details appear in the Edge panel:
x[shares] — number of shares you hold
Position value in USD
P&L — profit or loss (green/red)
Red SELL button
Click SELL to close your entire position at the current market price.
What Happens at Expiry
If you don't sell before the market expires:
You were right (e.g., bought UP and BTC went up) → You receive $1 per share automatically
You were wrong (e.g., bought UP and BTC went down) → Your shares are worth $0
Payouts are handled by Polymarket. You can claim resolved positions from the wallet menu or on Polymarket directly.
Trading Tips
Timing matters:
Markets become more predictable as expiry approaches (less time for reversals)
But Edge also tends to shrink as the market catches up
Sweet spot: enter at roughly 50% of the window elapsed
Risk management:
Never risk more than you can afford to lose
Diversify across multiple assets and timeframes
Longer timeframes (1h, 4h) have higher win rates but fewer opportunities
When NOT to trade:
When data shows STALE (red indicator)
When Edge is below 3% (not enough to cover costs)
When orderbook is very thin (low depth profit)
Right before a market expires (< 30 seconds left)
Slippage
Slippage is the difference between the expected price and the actual fill price. You can set your slippage tolerance in the wallet menu (default: 2%).
Lower slippage (e.g., 0.5%) = your order may not fill if the market moves
Higher slippage (e.g., 5%) = your order will fill but you may get a worse price
For most situations, the default 2% works well.
Last updated