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Polymarket vs Kalshi vs Interactive Brokers - Best prediction market

The world of prediction markets is heating up. Interactive Brokers, a well-established brokerage firm, recently entered the arena with binary options, joining the ranks of Polymarket and Kalshi. Find how to use them, what they pricing model and in which countries they operate.


Best Prediction Market Platform



Forecast Trader

Polymarket

Kalshi

Company

Interactive Brokers Group, Inc.

Adventure One QSS Inc. 

 Kalshi Inc

Description

Interactive Brokers is a well-established brokerage firm offering a wide range of financial services, including stocks, options, futures, forex, and more. Recently they started prediction markets (binary options)

Polymarket is a decentralized prediction market platform that allows users to trade on the outcome of real-world events.

Kalshi is a regulated event-based prediction market where users can trade on the outcomes of various events.

Wikipedia

Launched

2024

2020

2018

Regulatory Status

Regulated by the Commodity Futures Trading Commission (CFTC) in the U.S.

Operates in a regulatory gray area, often in jurisdictions without strict regulations on prediction markets.

Fully regulated by multiple financial authorities, including the SEC, CFTC, and FINRA.

Currency

EUR, USDC

USDC

USD

Tradeable in the US

Yes

No

Yes

Tradeable outside the US

Yes

Sometimes

No

KYC

Yes

No

Yes

Fees

?

  • / Network fee 0.20$

Trading Fees

Volume




Average Spread




Discord Members


Traffic on Similiar Web

-

1-9 million

210k

Markets

CME Futures, Economic Data

Middle East

Market icon

Politics

Market icon

Crypto

Market icon

Sports

Market icon

Pop Culture

Market icon

Science


Economics

Interest rates

Inflation

Employment

Housing

Oil and energy

Politics

Biden

Culture war

Immigration

SCOTUS & courts

Bills

Culture

Rotten Tomatoes

Taylor Swift

Oscars

Grammys

Video games

Companies

Elon Musk

CEOs

KPIs

Product launches

Layoffs

Financials

S&P

Nasdaq

EUR/USD

WTI

Treasuries

Crypto

Tech & Science

Climate

Health

World

Transportation


Platform

App/Web

Web

Web/?

Order types

Market, limit

Market, limit, AMM

​​Market, limit

Slippage


0.1-1%


API

-

Rest, Websock

Rest, Websocket

Programmatic Trading

No

Yes

?


FAQ:

  • Polymarket Legal in the US?

  • Legal to bet on the elections?

  • What are the risks of betting?

  • How to use Forecasttrader







API EXAMPLES




 
 
 

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