How do you trade on prediction markets?

Getting started on Polymarket is more straightforward than you'd think, but small mistakes can cost real money. Here's the exact process from account creation to profitable trading.

Setup and Funding

Visit Polymarket's website and sign up with an email. You'll need a crypto wallet—MetaMask is the most popular. If you don't have one, download MetaMask (a browser extension or mobile app), create a wallet, and write down your recovery phrase. Never share it.

Before trading, you need USDC stablecoin in your MetaMask wallet. You can't use dollars directly. Buy USDC on an exchange like Coinbase, Kraken, or Crypto.com using your bank account or credit card. Send it to your MetaMask wallet address. Once it arrives (usually within minutes), you're ready.

Connect MetaMask to Polymarket. The site will ask permission to access your wallet. Approve it. Your USDC balance now appears on Polymarket, and you can start trading.

Finding and Understanding Markets

Browse the markets dashboard. Filter by category (politics, sports, finance) or search for specific events. Each market shows the current YES and NO prices. Click a market to see more details: description, trading volume, number of traders, resolution date, and recent price history.

Volume matters. Markets with $1 million+ daily volume have tight spreads (small difference between buy and sell prices). Markets with $10,000 volume might have 5-10% spreads, eating into your profits. Always check volume before entering a position.

The resolution date is critical. Markets close at a specific time. If you're day-trading, know when that happens. If you're holding long-term, make sure you have days or weeks, not hours, to let your thesis play out.

Placing Your First Trade

Click the market. You'll see the order book with buy and sell orders stacked at different prices. If YES is trading at $0.42 and you think it's undervalued, decide how many shares to buy.

Start with small position sizes. If you have $1,000 total, don't risk more than $300 on a single trade (the 3% rule). Buy 100 shares at $0.42 = $42 total. That's manageable.

Click "Buy YES" at $0.42. Your order executes instantly against someone else's sell order. You now own 100 YES shares. Your account balance drops by $42.

Managing Your Position

Watch the price move in real time. If news drops that strengthens your thesis, the price climbs. If it drops, price falls. You can:

1. Hold to Resolution – If you bought YES at $0.30 and it resolves as YES, you make $1 per share. Total profit: $70 on your $30 investment.

2. Sell Early – If price climbs to $0.65 after positive news, you can sell and lock in profits right now. You turn $30 into $65. You don't need the price to hit $1.

3. Average Down/Up – If you bought at $0.50 and price drops to $0.30, you might buy more shares at the lower price to reduce your cost basis.

4. Set Stop-Losses – If price hits $0.15 (a 50% loss), automatically sell to prevent further damage. Most prediction markets don't