What changed in September 2026
On September 25, 2026, the 6th US Circuit Court of Appeals ruled that Ohio and Tennessee can regulate Kalshi's sports-related event contracts under state gambling laws, vacating an injunction in Tennessee and upholding the denial of one in Ohio, according to Reuters. The ruling deepens a split among federal appeals courts (the 9th Circuit ruled against Kalshi on Nevada, the 3rd Circuit ruled for Kalshi on New Jersey, and New Jersey has asked the Supreme Court to overturn that decision), raising the odds the Supreme Court takes up the question of who regulates prediction markets. Kalshi said it does not expect the ruling to survive further review.
Separately, a Pitchbook analysis reported by Fortune on September 24, 2026 estimated Kalshi could be worth as much as $42 billion in a potential IPO, conditional on the company surviving that legal risk. Neither development changes the underlying picture: Kalshi has not filed a registration statement, and any listing remains reported, not confirmed.
The regulated one in a booming sector
Kalshi spent years winning the right to operate as a CFTC-regulated exchange for event contracts, and that regulatory position became its moat when prediction markets exploded into the mainstream during 2025 and 2026. Revenue reporting in 2026 describes an annualized run rate in the billions of dollars.
Investor appetite followed: a reported $1 billion Series F at a $22 billion valuation in May 2026, then reported talks weeks later at roughly $40 billion. Repricing that fast is a sign of momentum, and also of how much expectation is already loaded into the private price.
What 'informal IPO talks' actually means
2026 reporting describes Kalshi holding informal conversations with banks and acknowledging that it is preparing for an eventual IPO, with timing dependent on market conditions and reportedly no earlier than late 2027. Informal talks precede a mandate; a mandate precedes a filing; only the filing is public and binding.
Kalshi is therefore in the credible-but-early zone: more real than pure rumor names, well short of Kraken's announced draft registration. The distinction between those stages is exactly what this site tracks.
The two-source rule for Kalshi claims
Because the sector moves fast, valuation and timing claims about Kalshi age in weeks. Anchor any claim to two things: its date, and whether it traces to an official statement or a named-source report from primary financial press.
The decisive signals remain the boring ones: a public S-1 on EDGAR, or an official company announcement of a listing. A CFTC-regulated exchange going public would also involve visible regulatory steps, giving multiple independent confirmation points.