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Prediction markets have officially graduated from the “weird crypto hobby” phase and are now knocking on the door of the global financial elite. As of March 10, 2026, Kalshi and Polymarket are both reportedly hunting for fresh funding at $20 billion valuations.
We are talking about platforms that let you bet on everything from the S&P 500 to the next Supreme Leader of Iran being valued on par with some of the world’s most established stock exchanges.
From millions to billions
If you want to know why investors are salivating, you just have to look at Kalshi’s bank statement. The company’s revenue grew by 994% year-over-year to reach an estimated $260 million in 2025. This wasn’t just luck because it was highly influenced by $22.88 billion in trading volume.
While the $20 billion valuation headline is what catches the eye, analysts say the real story is this “run rate.” Kalshi has reportedly surpassed $1 billion in annualized revenue. This operational scale is what proves the platform has moved far beyond a niche interest and into a primary market force.
Should either of these companies actually hit that $20 billion mark, it would represent a historic level of growth in a very short window. Consider where they were just a few months ago:
Kalshi: Following a $1 billion financing round in late 2025, the company was valued at $11 billion. Doubling that in months is a bold ask that assumes the platform will continue to eat the world.
Polymarket: Last October, the Intercontinental Exchange (ICE)—the folks who own the New York Stock Exchange injected $2 billion into Polymarket. That deal was based on an $8 billion pre-money valuation, eventually landing the platform in the $9 billion to $10 billion range post-investment.
Kalshi goes offshore
Kalshi isn’t just waiting for a check because they are actively expanding their footprint. On March 9, 2026, Kalshi officially entered its first international market by launching in Brazil. Partnering with XP International, the largest brokerage in the country, they are now offering “yes-or-no” contracts tied to the Brazilian economy.
This deal involves using XP’s existing client base to bypass the slow process of building a brand from scratch. Kalshi co-founder Luana Lopes Lara noted that they view Brazil as being in the same spot the US was a few years ago, meaning they can move much faster this time around.
Sports for dough
Even with all the talk of “economic indicators” and “geopolitical sentiment,” the industry still has a favorite pastime. Sports still dominate the platform, accounting for roughly 65% of all trading volume so far in 2026. While the novelty markets, like Oscar winners or video game release dates, get the social media clicks, it is the NFL and NBA that keep the lights on.
A $20 billion valuation is a big bet on the future. It requires a growth that the current customer base cannot fully justify on its own, meaning these platforms must convince the average person that trading “event contracts” is just as normal as buying a stock.
