Trading
Trading on PredictBase
Once your wallet is connected and funded with USDC on Base, you’re ready to make your first prediction! PredictBase allows you to bet on real-world outcomes — such as Bitcoin price movements, sports results, tech product launches, and more — and trade shares of your predictions as events unfold in real time.
What You’re Betting On
Each market includes:
A question (e.g., “Will ETH be above $3,000 on May 1st?”)
A set of options (e.g., “Yes” or “No”)
The current share price for each option
You place your USDC on the outcome you believe will occur and receive shares in return. After the market resolves, you can claim $1 per share if your prediction was correct, or you can sell your shares anytime based on the current market price.
You can place multiple bets in the same market before it closes.
All bets are stored on-chain and fully transparent.
A 2% fee (1% to the market creator, 1% to the protocol) is applied directly to each buy or sell trade
Trading Fee (2% )
Each trade (buy/sell) includes a 2% transaction fee, which is split evenly:
Creator Revenue
1%
Paid to the market creator after the market is resolved
Protocol Revenue
1%
Used to fund PredictBase development, infrastructure & PREDI buyback
These fees are included in your quoted share price.
Example: You want to buy $100 USDC worth of shares in the Lakers market:
$1 USDC goes to creator revenue
$1 USDC goes to the platform
You will receive shares based on the remaining $98 USDC
How to Open a Positions?
Browse markets on PredictBase.
Click on a market to open its detail view.
Select your prediction option (e.g., “Yes”).
Enter the amount of USDC you want to bet.
Click Place Bet.
Approve the transaction in your wallet.
How to Close a Positions?
Visit your dashboard on PredictBase or go to the market page.
Find your positions and select Sell.
Enter the amount of shares you want to sell.
Click Confirm.
Sign the transaction in your wallet.
How Odds Work
PredictBase v2 uses a Logarithmic Market Scoring Rule (LMSR), with PredictBase and market creators providing liquidity for trading.
Once you place a bet, your odds are locked in, and you will receive a payout of $1 per share if your chosen option is correct.
With live trading, you can buy or sell shares anytime before market resolution, allowing you to lock in profits, hedge positions, or actively trade like in traditional markets.
Example
Market: Will BTC be over $70,000 on May 1st?
Option prices: Yes = $0.60, No = $0.40
Bet: $50 on "Yes"
Result:
Shares received: 83.33 shares
Payout if correct: $83.33
⚠ Important Notes
Check market liquidity before trading: Markets with low liquidity can result in high slippage and fewer shares for your bet.
Verify the market validity: Since PredictBase allows all users to create markets, ensure the market you’re betting on makes sense. Markets that violate platform terms may be cancelled, in which case you will receive a full refund of your bet.
Once your bet is placed, you can track it anytime under Viewing Your Bets.
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