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October marked a watershed moment for prediction markets, with both Kalshi and Polymarket posting record-breaking performances. Kalshi just wrapped up its best month ever, pulling in around $4.4 billion in trading volume. It’s a huge milestone—not just for the company, but for regulated event-driven trading in the U.S.
Launched back in 2020, Kalshi has carved out its spot as the go-to regulated prediction exchange in the country. They mix strict oversight, solid liquidity, and a steady stream of new products. That combo keeps both big institutions and everyday traders coming back. Plus, as Kalshi keeps growing, it’s clear that regulated prediction markets are finally starting to break into the financial mainstream.
Polymarket’s historic rebound
While Kalshi’s numbers grabbed headlines, Polymarket’s resurgence was arguably just as striking. After months of decline—dropping to 227,420 monthly active traders in August—the platform staged a dramatic turnaround. October saw 477,850 active traders, up 93.7% from September and surpassing its previous record of 462,600 from January.
Polymarket’s trading volume also exploded, hitting $3.02 billion, more than triple its summer averages when monthly activity hovered below $1 billion. The number of new markets created jumped to 38,270, nearly three times the August total, signalling a strong resurgence in retail participation and speculative activity.
What drove the surge
Analysts credit Polymarket’s spike to a combination of innovation and incentives. Chief among them were the rumors of a native POLY token and an associated airdrop, which drew traders eager to meet participation thresholds for potential rewards. Airdrop campaigns often trigger bursts of speculative trading, leading to higher liquidity and rapid market creation—patterns reflected in Polymarket’s October data.
Adding to the momentum were reports of a potential $15 billion valuation and speculation about Polymarket’s re-entry into the U.S., both of which fuelled investor enthusiasm. This growth also reflects a shift in market sentiment, with activity expanding beyond traditional politics and sports betting to include options-style event trading and macro market forecasts.
Two models, one booming sector
Kalshi and Polymarket take very different paths, but they’re both pushing prediction markets forward. Kalshi follows the rules, attracts institutions, and makes everything official. Polymarket, meanwhile, runs on blockchain and draws energy from its active community and open participation.
Both platforms are smashing records right now, and you can feel the shift—traditional finance and decentralized models are starting to blend. With billions flowing through each month, this space looks ready for real, lasting growth as we head into 2025.
The road ahead
Looking ahead, Kalshi’s focus on compliance should keep pulling in institutional money. Polymarket, with its token launch and bigger plans for the U.S., could cement its spot as the top decentralized option.
October’s numbers might be more than just a blip—they could be the moment prediction markets hit their stride, where regulation and tech meet real user excitement, and the race for global leadership gets a whole lot more interesting.
Source: SiGMA News
