Polymarket vs Kalshi: Which Prediction Market Is Better in 2025?

Polymarket and Kalshi are the two leading prediction market platforms, but they serve different audiences with different strengths. Here is everything you need to know to choose the right platform.

Quick Comparison

Feature	Polymarket	Kalshi
US Availability	No	Yes
Regulation	Unregulated (crypto)	CFTC regulated
Trading Fees	0%	1-7%
Currency	USDC (crypto)	USD
Market Variety	Very High	Moderate
Liquidity	High (major markets)	Moderate

US Availability: The Biggest Difference

The most important distinction is regulatory status. Kalshi is the only CFTC-regulated prediction market exchange, making it the sole legal option for US residents who want to trade with real money.

Polymarket, operating on crypto rails, is not available to US residents due to regulatory restrictions.

Fees Comparison

Polymarket

Polymarket charges no trading fees. You pay only blockchain gas fees (typically cents) and any deposit/withdrawal costs from payment processors.

Kalshi

Kalshi charges fees on winning trades, ranging from 1% to 7% depending on the contract. This can significantly impact profitability, especially on high-probability bets.

Market Selection

Polymarket

Polymarket offers a wider variety of markets including politics, crypto, sports, entertainment, science, and current events. New markets are added frequently based on user interest.

Kalshi

Kalshi focuses on economics, politics, and weather markets. Market creation requires regulatory approval, limiting variety but ensuring legitimacy.

Liquidity and Trading Experience

Polymarket

Major Polymarket markets (elections, major events) have excellent liquidity with tight spreads. Smaller markets can be illiquid.

Kalshi

Liquidity is generally lower than Polymarket's top markets, though improving. Spreads can be wider, especially on less popular contracts.

User Experience

Polymarket

Clean, modern interface. Requires crypto wallet knowledge for advanced features, though card deposits simplify onboarding.

Kalshi

Traditional financial interface. Easier onboarding for users unfamiliar with crypto. Direct bank account connection.

Security and Trust

Polymarket

Blockchain-based with transparent smart contracts. Non-custodial trading means you control your funds. Uses UMA oracle for dispute resolution.

Kalshi

CFTC oversight provides regulatory protection. Funds held in regulated accounts. Traditional legal recourse available.

Which Should You Choose?

Choose Kalshi If:

• You are a US resident
• You prefer regulatory protection
• You want to trade with traditional banking
• You focus on economic and weather markets

Choose Polymarket If:

• You are outside the US
• You want zero trading fees
• You prefer maximum market variety
• You are comfortable with crypto
• You want the highest liquidity on major events

Key Takeaways

• Kalshi is the only legal option for US residents
• Polymarket offers zero fees vs Kalshi's 1-7%
• Polymarket has more markets and better liquidity on major events
• Kalshi provides regulatory protection and traditional banking
• Your location largely determines which platform to use

Continue Reading

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