Platform Analysis

Comprehensive analysis of 9 leading prediction market platforms with detailed specifications, fees, and features.

Platform Analysis

Detailed comparison of all 9 prediction markets

Kalshi

Regulated (CFTC)KYCAPI
$11B
Volume

First US event contract exchange licensed by CFTC. Trade on real-world events - politics, economics, sports, weather. 2025 trading volume reached $238 billion.

Blockchain
Centralized (no blockchain)
Founded
2018
Fees
0.07 × contracts × price × (1-price)
Min Deposit
$1

Polymarket

DeFi (Polygon)APIMarkets
$9B
Volume

World's largest decentralized prediction market. Operates on Polygon blockchain with USDC. 2025 trading volume was $220 billion. Launched Polymarket US (beta) for American users at end of 2025.

Blockchain
Polygon (MATIC)
Founded
2020
Fees
0% trading fees (global version: 2% profit on withdrawal)
Min Deposit
~$1 (minimum gas)

Rain Protocol

DeFi Infrastructure (Arbitrum)APIMarkets
$1.95B
Volume

Decentralized infrastructure protocol for creating prediction markets. Positioned as 'Uniswap for prediction markets' - SDK, API, and smart contracts for developers. Public beta launched November 2025.

Blockchain
Arbitrum One
Founded
2023
Fees
Configurable (depends on application built on protocol)
Min Deposit
Minimum gas (~$0.01 on Arbitrum)

Novig

Sports FocusedKYC
$500M
Volume

Specialized sports betting platform operating as exchange (peer-to-peer). Focus on American sports. Positioned as alternative to traditional bookmakers with better odds.

Blockchain
Centralized
Founded
2022
Fees
No bookmaker margin. Commission ~0.5-1% of winnings
Min Deposit
~$10

Gnosis Omen

DeFi (Gnosis Chain)APIMarkets
$150M
Volume

Pioneer of decentralized prediction markets. Omen is flagship app on Gnosis Chain. Uses Conditional Token Framework (CTF) - ERC-1155 standard for outcome tokenization. Reality.eth oracle for resolution.

Blockchain
Gnosis Chain (formerly xDai)
Founded
2022
Fees
2% AMM fee
Min Deposit
$1 (minimal gas)

Opinion Labs

DeFi (Base)APIMarkets
$250M
Volume

New prediction market platform on Base (Coinbase's L2). Focus on real-world events and crypto markets. Backed by Coinbase Ventures. Fast, low-cost transactions.

Blockchain
Base (Coinbase L2)
Founded
2024
Fees
0.5% dynamic average
Min Deposit
$1

Limitless

DeFi (Arbitrum)APIMarkets
$120M
Volume

Emerging prediction market platform on Arbitrum. Focus on high-frequency trading and sophisticated market mechanics. Supports advanced order types and derivatives.

Blockchain
Arbitrum One
Founded
2024
Fees
1.5% dynamic average
Min Deposit
$10

Sport.fun

Sports Exchange (Base)API
$80M
Volume

Decentralized sports betting exchange on Base. 'Be your own bookmaker' - peer-to-peer bet matching. Launched Q4 2025. Focus on soccer and esports.

Blockchain
Base (Coinbase L2)
Founded
2024
Fees
Oracle: 1.5% of profit. Affiliate: 0.5% of profit
Min Deposit
Minimum gas

SX Bet

Sports Exchange (SX Network)API
$35M
Volume

Decentralized sports betting exchange. 'Be your own bookmaker' - peer-to-peer bet matching. Proprietary SX Network (L2 based on Polygon). USDC and WSX as settlement tokens.

Blockchain
SX Network (proprietary L2, Chain ID: 4162)
Founded
2019
Fees
Oracle: 2.6% of profit. Affiliate: 1.4% of profit
Min Deposit
$5 USDC