Polymarket and Kalshi Seek Fresh Funding at $20 Billion Valuations

Polymarket operates a crypto-based prediction market where users trade contracts tied to outcomes in politics, economics, sports and other events. The platform gained prominence during U.S. elections, helping push prediction markets toward the financial mainstream and attracting institutional investors. Its next phase depends on expanding in the United States while navigating regulatory compliance, building deeper liquidity and converting heightened interest into durable trading activity.

As of Sept. 1, 2026, Polymarket was reportedly seeking about $1 billion in new funding at a post-money valuation of as much as $21 billion. 1789 Capital, an investment firm linked to Donald Trump Jr., plans to lead the round with roughly $300 million. Polymarket is expected to use the proceeds to expand its U.S. operations and strengthen market liquidity, though the financing terms have not been formally announced.

Polymarket is a blockchain-based prediction market where users trade contracts tied to the outcomes of political, economic and other major events. Prices are designed to reflect the market’s assessment of an outcome’s probability. The sector is drawing greater attention as Coinbase, Robinhood and Kalshi expand their offerings, intensifying competition for users, liquidity and regulatory acceptance.

As of Aug. 5, 2026, Polymarket was reported to be seeking about $1 billion in fresh funding at a valuation exceeding $20 billion, roughly double its previous level. A completed deal would underscore investor appetite for prediction markets despite mounting competition and regulatory scrutiny, while giving Polymarket additional capital to defend its position against larger financial technology platforms.

Kalshi and Polymarket allow traders to buy contracts tied to outcomes in politics, sports and other real-world events, with prices serving as market-implied probabilities. Their growing scale underscores prediction markets’ shift from niche wagering products toward a broader financial and consumer category, drawing closer scrutiny of liquidity, market structure and regulation as more users and capital enter the sector.

Combined trading volume at Kalshi and Polymarket exceeded $50.6 billion in July 2026, setting a monthly record as World Cup-related contracts helped drive activity. Polymarket’s US market posted a 54% increase from June, while volume on its main platform fell 26% over the same period. The divergence suggests that fresh demand was concentrated in the regulated US offering and major sports events rather than spread evenly across Polymarket’s operations.

Polymarket is a prediction-market platform where users trade on the outcomes of political, economic and public events. It has expanded its regulated U.S. operations in recent years. The revenue surge could help support its pursuit of a $15 billion valuation and intensify its competition with regulated rival Kalshi.

By the sixth week after the launch of its U.S. exchange, Polymarket’s projected annualized revenue had exceeded $1 billion, indicating that the new market quickly boosted trading and fee income. Although reports did not disclose the exact launch date or weekly revenue, the milestone has become an important indicator of prediction markets’ accelerating move into the mainstream.

Kalshi is a Commodity Futures Trading Commission-regulated event-contract trading platform that allows users to trade on the outcomes of elections, economic data releases and sporting events. Its rapid expansion highlights prediction markets' move into mainstream finance, though U.S. states continue to question whether sports contracts constitute unlicensed gambling.

As of July 20, 2026, Kalshi had reportedly begun preliminary talks with investment banks about a potential initial public offering. The company was valued at $22 billion and had surpassed $2 billion in annualized revenue. No listing timetable has been set, while regulation and litigation will be central to investors' assessment of its growth prospects.

Polymarket and Kalshi are prediction-market platforms that let users trade contracts based on the outcomes of political, economic and other events. Their cumulative trading volume has surpassed $150 billion, underscoring the sector's emergence as a major fintech segment. Kalshi has taken the lead in the U.S. market with authorization from the Commodity Futures Trading Commission.

Polymarket and Kalshi recorded a combined $21.9 billion in monthly trading volume in April 2026, an all-time high. However, Polymarket's monthly volume fell for the first time since August 2025, allowing Kalshi to overtake it in scale. Polymarket has also partnered with Chainalysis to strengthen compliance as it continues seeking to reopen trading to U.S. users.

Prediction markets allow traders to wager real money on event outcomes, making prices a signal of probability and risk. With the Iran war affecting oil prices, national security and crypto assets, Polymarket and Kalshi have become real-time macroeconomic radars. However, the U.S. Commodity Futures Trading Commission strictly limits contracts tied to war, while regulatory and insider-trading risks in offshore markets are also rising.

In the week ended March 1, 2026, geopolitical trading volume on Polymarket jumped to a record $425 million from $164 million the previous week. By March 9, weekly notional trading volume on Polymarket and Kalshi had set fresh records of $2.49 billion and $2.85 billion, respectively. On April 6, Sygnum said professional trading desks had incorporated such markets into their monitoring of macroeconomic risks.