Kalshi has asked the Commodity Futures Trading Commission to let institutional traders buy prediction-market contracts with borrowed money, which would end the requirement that every event contract on a regulated U.S. exchange be paid for in full.
The request is narrow. Sports markets are excluded, and margin would be available only to large firms that clear their trades directly with Kalshi’s clearinghouse or trade through a futures broker. Even for them, the leverage would shrink as a contract nears its outcome, returning to full collateral when the risk of a sudden yes-or-no resolution is highest.
Kalshi Klear, the company’s in-house clearinghouse, filed with the CFTC on September 22, 2026, seeking approval under Regulation 40.5 for what it calls an Event Contract Margin Framework. The filing says the changes would take effect no earlier than the first business day after a 45-day review period, or later if Kalshi Klear or the Commission decides.
Paid in Full, Until Now
Every contract Kalshi clears is binary, according to the filing. It pays $1 if a specified event happens and nothing if it doesn’t, and trades at a price between the two before it settles. A trader who buys YES at 40 cents can lose at most 40 cents; the holder of the NO side can lose at most 60 cents.
Today, both sides pay those maximum losses up front. Kalshi Klear described its event contracts to the CFTC in March as “fully collateralized at all times.” All event contracts on regulated U.S. exchanges currently work the same way, CNBC reported.
Margin changes that. A trader posts only part of a contract’s value, and the clearinghouse relies on the amount posted being enough to cover likely losses. The practice is standard for stocks and futures, and institutions looking at prediction markets have widely seen it as a necessary step before bigger firms participate, CNBC reported.
Kalshi Klear already clears margined perpetual futures. When the CFTC registered Kalshi Klear as a clearinghouse in April, its registration order recorded Kalshi’s commitment to obtain Commission approval under Regulation 40.5 before implementing any margin methodology for swaps. The filing states that all eligible event contracts qualify as swaps, making this the approval request.
Who Would Get Access
The framework could apply to event contracts on “economic, financial, political, commercial, and other objectively verifiable events,” the filing says. Contracts whose underlying event is a sporting contest are excluded. A Kalshi spokesperson told CNBC the company would also not offer margin on its culture and “mention” markets. Sports trading, largely by retail customers, has driven most of the surge in prediction-market volume over the past year, CNBC reported.
In a memo provided to CNBC, Kalshi said leverage would make longer-dated contracts, those that settle months or years away, more attractive to institutional traders, whose capital would otherwise be locked up for the full term of the contract.
Margined contracts could be cleared only through a futures commission merchant, a regulated broker that clears trades for customers, or by an eligible contract participant that Kalshi Klear has approved as a self-clearing member, according to the filing. Eligible contract participants are, broadly, institutions and wealthy entities that meet federal thresholds for trading swaps. The Kalshi spokesperson told CNBC that self-clearing members would also need to meet certain capital requirements.
The filing allows Kalshi to treat the two sides of a market differently. Because an early or unexpected resolution can hurt one side more than the other, Kalshi Klear may margin the YES side of a contract while requiring full collateral on the NO side, or the reverse. New markets would default to full collateral until reviewed.
How the Margin Would Work
The framework sets margin according to how far a contract’s price could plausibly move against a position within a given period, capped at the most the position could lose. Kalshi Klear says its model targets more than 99% confidence that losses over that period will not exceed the margin posted, above the minimum the CFTC requires.
The most consequential request concerns that period. Under the clearinghouse’s rules, margin on swaps must assume at least five days to close out a defaulted position, unless the Commission approves a shorter window. Kalshi Klear is asking the CFTC to allow one day for eligible event contracts. A shorter window means a lower margin. The filing’s explanation for why these contracts warrant it is redacted.
The filing sets out several safeguards. Margin would rise ahead of scheduled events that can cause prices to jump, such as an economic data release or an election result, and climb toward full collateral as each contract approaches resolution. Volatility floors would stop margin from falling too far in quiet markets, and extra charges would apply to large or hard-to-unwind positions. Offsets between related contracts would be recognized only where the relationship has been tested. The filing says the framework has been independently validated by a reviewer separate from the team that built it.
What Fully Collateralized Traders Would Face
The filing addresses what happens to other traders if a margined trader defaults. Margined event contracts would sit in a separate segment with their own default protections, apart from both fully collateralized contracts and Kalshi’s margined perpetual futures.
Customers trading fully collateralized contracts would never lose their collateral as a result of a margined trader’s default, the filing states. In an extreme scenario, however, a fully collateralized position could have part of its profits cancelled, limited to the portion owed by margined traders on the opposite side.
What Is Not Public
Much of the design is withheld. Kalshi Klear requested confidential treatment for its methodology white paper, calibration parameters and validation results, and redacted three sections of the public filing, including the framework overview and the justification for the one-day window. The CFTC will review the full version.
The filing, signed by Kalshi Klear Chief Risk Officer Udesh Jha, states that the clearinghouse “is not aware of any opposing views” on the proposal.
The Race for Institutional Money
The request is the latest step by prediction-market exchanges to draw institutional liquidity, CNBC reported. Kalshi launched CFTC-approved crypto perpetual futures in May and added gold and silver perpetuals in September, according to CNBC. Bloomberg reported in July that Polymarket was pursuing licenses that would eventually let it offer margin on event contracts in the U.S.
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