Polymarket and Kalshi Lead Growth in Prediction Markets Heading into 2026

TLDR

• Polymarket and Kalshi’s valuations top billions after record growth in 2025.
• Despite hype, concerns rise over inflated trading volumes in prediction markets.
• Major media and sports brands partner with Kalshi and Polymarket in 2025.
• Crypto giants like Coinbase are entering prediction markets, pushing innovation.

In 2025, prediction markets reached a milestone year, with Polymarket and Kalshi leading the charge. Both platforms gained significant media attention and investment, achieving multi-billion-dollar valuations. Kalshi, which raised $1 billion at an $11 billion valuation, and Polymarket, valued at $9 billion after securing a $2 billion investment from Intercontinental Exchange (ICE), stand at the forefront of this growing market.

Both platforms benefited from increased investment and expanded offerings in 2025, positioning them for a critical test in 2026, especially with the U.S. midterm elections. Many view these events as an opportunity to prove the scalability and accuracy of prediction markets, which gained popularity during the 2024 U.S. presidential election.

Concerns Over Trading Volume Accuracy

Despite the significant attention prediction markets have received, there are concerns regarding the accuracy of reported trading volumes. The platforms claim substantial numbers, with a combined cumulative trading volume of nearly $40 billion. However, critics argue that actual user activity is limited, with only a small subset of users engaged in trading. A notable issue arose earlier this year when Polymarket’s reported volumes were temporarily inflated due to a data error, raising questions about the transparency of such metrics.

Kalshi has defended the accuracy of its volumes, citing legal requirements to publicly report daily trading figures as part of its agreement with the Commodity Futures Trading Commission (CFTC). Jack Such, a Kalshi executive, emphasized that the platform’s reported volumes are neither inflated nor deflated.

Expanding Partnerships and Mainstream Adoption

Kalshi and Polymarket have also expanded their reach by securing partnerships with major media and sports brands. Kalshi formed partnerships with CNBC and CNN, while Polymarket teamed up with Yahoo Finance and the UFC. The platforms have also focused on increasing their presence in the sports betting sector, including offering opportunities to wager on NFL prop bets.

These partnerships are seen as a step toward mainstream adoption, with hopes that they will drive more users and liquidity to the platforms. However, some analysts remain skeptical about the short-term impact of these collaborations, noting that it may take time for the partnerships to result in meaningful trading activity.

The Future of Mention Markets and Controversy

One of the more controversial areas of prediction markets is the growing popularity of ‘mention markets.’ These markets allow users to wager on events like what statements or actions certain public figures, such as Elon Musk or prominent CEOs, might make. While these markets have generated interest, they also raise concerns about manipulation and ethical issues surrounding the commodification of individual actions.

Despite this, mention markets currently represent a small volume of overall trading. However, their growth could shape the future direction of prediction markets, particularly as platforms like Polymarket and Kalshi explore new categories and betting opportunities.

As 2026 approaches, the prediction market industry is under intense scrutiny. The success or failure of these platforms will depend not only on their ability to accurately predict major events but also on their ability to navigate regulatory challenges and concerns about transparency and fairness.

The post Polymarket and Kalshi Lead Growth in Prediction Markets Heading into 2026 appeared first on CoinCentral.