Kalshi has attracted wide attention after its valuation jumped to $11 billion. The company reached this figure soon after closing a new $1 billion raise.
This growth surprised many observers because it arrived only weeks after another large round that placed the firm at $5 billion.
Kalshi’s Rapid Rise
Kalshi’s latest raise shows how fast the company has scaled this year alone. Investors who backed the new round include Sequoia Capital, CapitalG, Andreessen Horowitz, Paradigm, Anthos Capital and Neo. These firms also supported Kalshi’s earlier expansions.
The company has not shared official comments about the terms, but reports point to intense investor interest.
Kalshi reportedly raised $1B at an $11B valuation from Sequoia and CapitalG.
Polymarket reportedly raising at $12-15B.
They created a new market out of thin air, major props to everyone who invested in these companies before the 2024 election. I did not think they would work. pic.twitter.com/hhiFRTVPdR
— Sheel Mohnot (@pitdesi) November 20, 2025
The fresh round came soon after Kalshi secured $300 million in October, according to the New York Times. That raise already marked a major step.
Traders on the platform continued to increase activity through the final quarter of the year and this rise helped fuel the new $11 billion valuation.
Trading Volume Reaches New Levels
Kalshi’s trading volume expanded at a fast pace throughout the year. By mid-October, its annualised volume reached about $50 billion. Only a year earlier, the platform had recorded roughly $300 million.
This large trend shows the growing appeal of market-based questions about real-world events.
Monthly activity in October and November showed the same pattern. Kalshi logged around $4.4 billion in monthly volume. Its closest rival, Polymarket, posted around $4.1 billion during the same period.
Sports markets play a strong role on Kalshi. About one third of all activity comes from sports-related contracts and dashboards on Dune also show that weekly notional volume across prediction markets has continued to rise since September.
Related Reading: Kalshi Users Gain Secure USDC Trading Through Coinbase Custody
Investor Confidence Strengthens
Reports indicate that Sequoia Capital and CapitalG led the new funding round. Both firms supported Kalshi before this raise.
Andreessen Horowitz, Paradigm, Anthos Capital, Neo and others also returned. This level of support shows trust in the direction the founders have set for the company.
Kalshi was launched by Tarek Mansour and Luana Lopes Lara. They met as MIT undergraduates studying computer science and mathematics.
Before founding the platform, both worked in hedge fund roles. Their background shaped the structure of Kalshi’s markets and the tools users employ while trading.
Competition Heats Up
The space has continued to change as rivals grow. Polymarket has been a close competitor for years.
Reports last month said Polymarket was exploring a raise at a valuation between $12 billion and $15 billion. That news arrived soon after Polymarket closed its own $1 billion round at an $8 billion valuation.
Both platforms gained more attention last year after they allowed users to trade on the US presidential election. Their profiles rose again after they correctly forecast the results of the New York City mayoral race.
Kalshi also ran ads in New York subway cars that displayed live market odds during the race. This campaign introduced the platform to many new users.
just moved to nyc and kalshi is EVERYWHERE pic.twitter.com/nQtWmXN0yn
— John Wang (@j0hnwang) November 3, 2025
Kalshi now allows users in more than 140 countries to trade contracts on many topics. Examples include Time magazine’s Person of the Year, film ratings such as the Rotten Tomatoes score of Wicked and the next U.S. presidential winner.