Understanding Prediction Markets

Overview Crypto Basics Prediction Markets Live Dashboard Trading Strategies Tools & Resources

What Are Prediction Markets?

Prediction markets let you trade on the probability of future events. Instead of betting on whether a stock goes up or down, you're trading on whether specific events will happen - elections, economic data, sports outcomes, or company decisions.

Key Concept: Binary Outcomes

Most prediction markets are binary - YES or NO. If you buy YES shares at $0.65 and the event happens, you get $1.00 per share. If it doesn't happen, you get $0.

Buy YES at $0.65 → Event happens → Get $1.00 = 54% profit Buy YES at $0.65 → Event doesn't happen → Get $0 = 100% loss

Example: "Will inflation be above 3% in March?"

YES 72¢

NO 28¢

Market thinks there's a 72% chance inflation exceeds 3%. You could buy NO at 28¢ if you disagree.

Major Platforms Compared

Platform	Type	Regulation	Markets	Best For
Kalshi	Centralized	CFTC Regulated (US)	Economics, Politics, Climate, Tech	US traders, regulatory clarity
Polymarket	Decentralized	Unregulated	Everything (politics, crypto, culture)	Non-US, crypto natives
Manifold	Play money	N/A	User-created	Learning, fun
PredictIt	Centralized	Academic exemption	US Politics mainly	Political junkies

How Kalshi Works

The Kalshi Model

First CFTC-regulated prediction market in the US
Real money, not crypto
$25,000 position limit per market
Clear tax treatment (capital gains)
Binary options on verifiable events

Popular Kalshi Markets

Economic Data: CPI, unemployment, GDP, Fed rates
Politics: Elections, legislation, appointments
Climate: Temperature records, hurricane seasons
Technology: Product launches, company milestones
Culture: Oscars, box office, social trends

Kalshi Trade Example

Market: "Will the Fed raise rates in March?"

Current Price: YES at 84¢

Your View: Too high, Fed will pause

Your Trade: Buy 100 NO contracts at 16¢ = $16 cost

Outcome if correct: Get $100 (525% return)

Outcome if wrong: Lose $16

How Polymarket Works

The Polymarket Model

Decentralized on Polygon blockchain
Uses USDC stablecoin
No KYC for most users
Blocked in US (use VPN at own risk)
Lower fees, more markets

Polymarket Advantages

More markets: Thousands vs hundreds
Better liquidity: Larger user base globally
Instant settlement: Blockchain-based
No limits: Trade any size
Crypto integration: DeFi composability

Trading Strategies for Prediction Markets

1. Information Arbitrage

Markets often misprice events when news breaks. If you're faster at processing information, you can profit.

Example: Company Earnings Leak

Market: "Will Tesla beat Q4 earnings?"

Price before leak: YES 45¢

Delivery numbers leak showing record quarter

You buy YES at 45¢

Market adjusts to 75¢ as others catch up

Profit: 67% in minutes

2. Market Making

Provide liquidity by placing limit orders on both sides. Profit from the spread.

Place buy order at 48¢ Place sell order at 52¢ Capture 4¢ spread (8% per round trip)

3. Correlated Markets

Trade related markets that should move together but temporarily diverge.

4. Time Decay

As events approach, uncertainty decreases. Likely outcomes converge to 100%, unlikely to 0%.

Risk Management

⚠️ Prediction Market Risks

Binary risk: You can lose 100% on any position
Resolution risk: Ambiguous outcomes, source disputes
Liquidity risk: Can't always exit positions
Platform risk: Hacks, regulatory shutdown
Tax complexity: Every trade is a taxable event

Getting Started Checklist

For Kalshi (US Traders)

Create account with KYC (driver's license)
Link bank account or debit card
Start with markets you understand
Use limit orders to avoid bad fills
Track P&L for taxes

For Polymarket (Non-US)

Get USDC on Polygon network
Connect MetaMask or WalletConnect
Bridge USDC if needed
Start with liquid markets
Keep gas money for transactions

Advanced Topics

Market Efficiency

Prediction markets aggregate information efficiently. Prices often beat polls, pundits, and models. But inefficiencies exist:

Breaking news gaps
Emotional overreactions
Liquidity constraints
Regulatory uncertainty

API Trading

Both Kalshi and Polymarket offer APIs for automated trading. Common strategies:

News-based trading
Statistical arbitrage
Market making bots
Cross-platform arbitrage

Resources & Tools

Kalshi API Docs: docs.kalshi.com
Polymarket Subgraph: GraphQL API for historical data
Metaculus: Forecasting community (no money)
Insight Prediction: Market aggregator
Manifold Markets: Practice with play money

Next Steps

Ready to see live markets? Check out the Live Dashboard →

Or learn trading strategies: Trading Strategies Guide →