Key takeaways

– Kalshi’s valuation went from $11 billion in December 2025 to $22 billion in March 2026, and it is reportedly now in talks for a $40 billion round that could close this quarter.

– Polymarket was valued near $8 billion when Intercontinental Exchange committed $2 billion to it last October. It is now fielding a round that could price it above $20 billion.

– Kalshi has told investors it is exploring an IPO for late 2026 or early 2027, complicated by state lawsuits alleging it runs an illegal gambling operation.

– Bernstein analysts think the bigger story is M&A: DraftKings, Robinhood and Coinbase have all bought or built their own exchange infrastructure in the past year, which makes Kalshi and Polymarket plausible takeover targets as much as acquirers.

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Try pricing Kalshi in your head for a second. In December it was worth $11 billion. By March, $22 billion, on a fresh $1 billion round led by Coatue, with Sequoia, Andreessen Horowitz, Paradigm, Morgan Stanley and ARK Invest all writing checks. By June, its bankers were reportedly out pitching a $40 billion number. That is not a startup finding its footing. This number is a market repricing what a regulated exchange for information is worth, and changing its mind every few weeks.

Polymarket is running the same pattern on a slightly longer fuse. Intercontinental Exchange, the company that owns the New York Stock Exchange, agreed to put $2 billion into it last October at roughly an $8 billion valuation, then wired the last $600 million in March. A month later, D.E. Shaw and G Squared led a fresh round that pushed the number to $15 billion. As of this month, Polymarket is reportedly back in the market again for a round that could value it above $20 billion.

None of that is normal venture math. Venture math does not usually list the parent company of the NYSE as a line item. Infrastructure investors are pricing Kalshi and Polymarket the way they would price an exchange, not a startup, and exchanges tend to end up bought, folded into a regulated duopoly, or public. Watching which of those three arrives first is a source of much speculation and interest from the general investing community.

Is Either One Actually Going Public?

Kalshi is the one making noise. It has reportedly told investors it is exploring an IPO as early as late 2026 or early 2027, riding that $22 billion round. The complication is that several state attorneys general are currently suing Kalshi over whether its sports-related contracts amount to unlicensed gambling, a fight that needs to resolve, or at least stabilize, before an S-1 makes sense.

Polymarket has not put a date on anything. But a stock exchange operator and two of the largest quant shops in the world are not usually along for a ride that ends in a quiet sale to a strategic buyer. Neither company has filed. Both are behaving like they are clearing the runway.

The Trade Underneath the Trade Is M&A

Bernstein published a note in June arguing the more durable story is consolidation, not the IPO race. According to them, every consumer platform that actually matters in this category has spent the past year merging the front end, the app people trade on, with the back end, the CFTC-licensed exchange that clears the trade.

DraftKings bought the exchange Railbird last October and used it to launch its own in-house exchange, DKeX, this June, ending its reliance on CME Group and Crypto.com to clear contracts. Robinhood built a similar setup with Susquehanna, called Rothera. Coinbase bought a firm called The Clearing Company right after launching its own event contracts. Flutter, FanDuel’s parent, set up a dual-broker arrangement to keep its options open.

That leaves Kalshi and Polymarket in an odd spot. Both already own the regulated exchange piece that DraftKings and Robinhood just spent a year building or buying. Neither has the consumer reach that DraftKings, Robinhood or Flutter walked in with. Bernstein’s read: that makes both plausible acquisition targets, not just acquirers, which is a different framing than the “one of these two wins” story most coverage defaults to.

Two Industries Already Ran This Exact Play

Daily fantasy sports went through something close to this a decade ago. DraftKings and FanDuel controlled roughly 90% of that market and tried to just merge outright in 2016. The FTC and several state attorneys general sued to block it on antitrust grounds, and the deal died in 2017.

The consolidation happened anyway. It just took a slower, quieter route. Flutter bought pieces of FanDuel over several years and did not finish the job until this past July, paying Boyd Gaming $1.76 billion for the last 5% stake in a deal that valued FanDuel alone at $31 billion. Nobody blocked that one, because it never looked like the headline merger regulators were watching for.

Crypto exchanges ran a faster version of the same script. Coinbase bought derivatives exchange Deribit for $2.9 billion last year, the largest deal in crypto history, mainly to get a derivatives book it did not want to build from scratch. Kraken answered a few months later by buying the futures platform NinjaTrader for $1.5 billion rather than cede that ground. Neither purchase was the market’s two biggest names merging. Both were about buying the specific piece of the stack the buyer was missing.

That is the more realistic template for prediction markets than a Kalshi-Polymarket megamerger regulators would likely never clear. Watch for the DraftKings-and-Railbird-shaped deals, not the DraftKings-and-FanDuel-shaped ones.

What This Means If You Are Not Picking a Winner

None of this requires guessing which platform wins. Data shows that prediction markets combined did more than $50 billion in volume during the opening weeks of this summer’s World Cup, representing more than traditional sportsbooks handled over the same stretch. Growth like that is exactly why ICE, Morgan Stanley and Coatue are all on the cap table now, and exactly why it is worth watching that volume broken out by platform aligned with trending events.

The two names everyone argues about, Kalshi and Polymarket, may not be the two names still standing on the other side of this cycle. Whoever ends up owning both the license and the distribution, the way Flutter now owns FanDuel outright, is the one still around for the next one.

Benzinga Disclaimer: This article is from an unpaid external contributor. It does not represent Benzinga’s reporting and has not been edited for content or accuracy.