Kalshi, the first federally regulated prediction market in the United States, makes money through four primary revenue streams: trading fees charged on every contract bought or sold, interest income earned on customer deposits held in segregated accounts, market-making spreads on house-provided liquidity, and institutional products including data licensing and API access. Unlike a traditional sportsbook, Kalshi does not take positions against its users, which means its revenue scales with volume rather than with user losses. That structural difference is central to understanding why Kalshi is building a very different kind of business than DraftKings, FanDuel, or an offshore book.
The CFTC License: Why It Changes Everything
Kalshi operates as a Designated Contract Market (DCM) regulated by the Commodity Futures Trading Commission. That status, granted in 2020, transforms what would otherwise be a gambling platform into a derivatives exchange, in the same regulatory family as the CME and ICE. The license is Kalshi’s single most valuable asset. It allows the company to operate legally in all 50 states, list event contracts on economics, elections, weather, climate, and sports, and build an institutional customer base that could never touch an offshore sportsbook. The license also creates a wide competitive moat, since any serious challenger must either acquire an existing DCM or spend years earning its own designation.
Trading Fees: The Core Revenue Engine
Every time a user buys or sells a Kalshi contract, the exchange collects a trading fee. The fee structure is tiered by contract price, so a contract trading at 50 cents pays the maximum fee, while contracts trading near 1 cent or 99 cents pay very little. In practice, Kalshi’s effective take rate on volume runs between about 1 and 2 percent per round trip, which is dramatically lower than the 4 to 10 percent effective hold on a traditional sportsbook, but materially higher than the fees charged by equities exchanges.
Because fees are symmetric, Kalshi earns the same revenue whether the market resolves yes or no. The company has no incentive to shade odds, delay payouts, or limit winning accounts. That alignment is one of the strongest arguments for prediction markets as a product category, and it is why professional traders have been willing to post serious capital on the platform.
- Fee tiers scale with contract price, peaking in the middle of the probability range
- Fees apply to both the buyer and the seller on every match
- Settlement itself is free, so holding to expiry costs nothing extra
- Volume compounds revenue without increasing variance
The Float: Interest on Customer Deposits
When a trader deposits dollars into a Kalshi account to post as collateral against open positions, those dollars sit in segregated bank or Treasury accounts. In a near-zero rate environment, this float produced almost no income. In the current rate environment, with the overnight rate hovering around 4 percent, the float has become a meaningful line item. If Kalshi holds roughly 400 to 600 million dollars of customer collateral at any given moment, interest income alone can run into the tens of millions of dollars annually, before any trading activity.
This is the same economic engine that powered Robinhood through its early public filings and that has historically subsidized free trading at Charles Schwab. For an exchange with growing open interest and sticky collateral, float income can quietly become the largest profit center, especially during periods when rates stay elevated.
Market Making and Liquidity Spreads
On many Kalshi markets, especially newer or thinner contracts, the exchange itself or affiliated market makers post two-sided quotes to ensure users can always trade. The spread between the posted bid and ask is captured as market-making revenue whenever a user crosses the spread. This is separate from the explicit trading fee and operates more like how a stock exchange specialist earns the difference between buying at 99 cents and selling at a dollar.
As organic liquidity grows and more professional firms quote on the book, Kalshi’s reliance on this revenue stream is likely to decline, mirroring the long-term trajectory of equities markets. In the short term, however, market-making profits remain an important supplement to pure fee revenue, particularly in less liquid categories such as climate or geopolitics.
Institutional Products and Data Licensing
Kalshi has quietly built an institutional business that includes direct API access, dedicated infrastructure, and bespoke contract listings for hedge funds, commodity traders, and corporate hedgers. These customers pay standard trading fees, but they also pay for premium data feeds, order-type access, and in some cases custom-built markets tied to specific economic releases. For large firms using Kalshi as a hedge against interest-rate decisions, inflation prints, or weather exposure, the exchange is replacing a workflow that previously relied on bespoke swaps or less liquid futures products.
The institutional segment is the clearest path to a diversified, high-margin revenue mix. It is also where Kalshi’s regulated status matters most, since pension funds, endowments, and bank treasury desks cannot route flow through unregulated venues.
The Path to Profitability
Kalshi’s economics look very different depending on volume. At today’s run rate, with billions of dollars in annualized contract volume flowing through markets ranging from the Fed funds target to Oscar winners, the fee line alone covers a substantial share of operating costs. Add float income, market-making profits, and growing institutional revenue, and the business is on a credible trajectory to sustained profitability well before most retail trading platforms reached that milestone.
The strategic risk is not revenue. It is regulatory. Any CFTC rulemaking that narrows the scope of permissible event contracts, especially in politics or sports, would directly compress Kalshi’s addressable market. The company’s incentive is therefore to grow volume quickly across every permitted category while using its license and compliance posture to shape the regulatory conversation.
What This Means for Traders
For users, Kalshi’s business model is a feature rather than a bug. Because the exchange earns from flow rather than from losses, there is no structural reason to limit winning accounts, shade lines against sharp bettors, or make withdrawals difficult. Fees are transparent, published, and symmetric. For anyone deciding whether to park capital on Kalshi or on an offshore sportsbook, the alignment of incentives is one of the strongest arguments in Kalshi’s favor.
Ready to trade on the regulated US exchange built around transparent fees? See our full breakdown on the Kalshi review page, compare it against the offshore leader on our Polymarket review, or jump straight to our ranked list of the best prediction markets for 2026.