A US trader sitting at their kitchen table with the Robinhood app already open, debit card already linked, and a vague curiosity about whether Donald Trump will tweet about a particular topic before the end of the month, has a choice to make. Open a Kalshi account, verify identity, fund it separately, and trade the event contract on the exchange directly. Or stay inside Robinhood and trade the same contract through the broker's prediction markets surface. The contract is, in many cases, literally the same instrument. The experience is not.
This is the question that keeps surfacing in US prediction market subreddits and finance Twitter threads. Both platforms route to CFTC-regulated event contracts. Both are legal in most US states. Both let you trade on elections, economic data, sports, and weather. So what is actually different, and which one fits how you want to trade?
The headline answer, then the longer one
If you want the cleanest, deepest order book and the widest catalogue of event contracts, Kalshi wins. It is the exchange. Robinhood is a broker that routes orders to it (and, in some categories, to ForecastEx, the Interactive Brokers-affiliated exchange). If you already live inside Robinhood for stocks and options and you want event contracts as an occasional sideshow, Robinhood is the lower-friction choice. The fees you see are different, the markets you can access are different, and the trading interface is built for different users.
The longer answer is that Kalshi and Robinhood are not really competitors in the way Polymarket and Kalshi are. They are layered. Kalshi is a designated contract market, regulated by the CFTC, hosting the order book. Robinhood is a futures commission merchant routing customer orders into that order book (and others). When you trade an event contract on Robinhood, you are often trading on Kalshi's exchange with Robinhood as your broker. The mechanics underneath are the same. The product you experience is not.
What Kalshi actually is
Founded in 2018 and granted CFTC approval as a designated contract market in 2020, Kalshi is the only US exchange purpose-built for event contracts. It lists hundreds of markets at any given time, covering inflation prints, Fed decisions, election outcomes, Oscar winners, hurricane landfalls, and sports results. The order book is operated directly by Kalshi. Liquidity in the headline markets, especially the political and macro contracts, runs into millions of dollars of open interest.
Kalshi's fee structure is volume-tiered and varies by market. On a typical political contract, the fee is a small percentage of the trade size, scaled by the contract's distance from 50 cents (cheaper trades on far-out-of-the-money contracts, more expensive near the middle). There is no separate withdrawal fee for bank transfers. Funding is via ACH, wire, or debit card.
The interface is built for traders who want depth-of-book, order types beyond market and limit, and a clear view of the bid-ask spread. It is not built for someone who has never placed a trade in their life. If you want the full menu of event contracts in the US, this is where the menu lives. Our breakdown of how Kalshi event contracts are structured walks through the mechanics in more detail.
What Robinhood actually offers
Robinhood's prediction markets product launched as a tab inside the broker's existing app, sitting alongside stocks, options, and crypto. The catalogue is narrower than Kalshi's. Headline contracts (elections, Fed decisions, major sports finals) are there. Long-tail contracts (obscure congressional races, niche economic prints, weather contracts for individual cities) often are not.
The reason is straightforward. Robinhood curates. Kalshi lists. A broker routing into an exchange does not need to surface every contract the exchange offers, and Robinhood has historically chosen to keep the surface area smaller and more mainstream. For a user who wants to bet on the Super Bowl or the next CPI print, this is fine. For a user who wants to trade the runoff in a specific Senate race or the resolution of a specific Supreme Court case, the contract may not be available inside the Robinhood interface at all.
Fees on Robinhood's event contracts are typically a flat per-contract amount, structured similarly to how options commissions used to work before the zero-commission era. The exact number varies by contract and has shifted over time. The trading interface is dramatically simpler than Kalshi's, with one-tap buying of Yes or No shares and minimal depth-of-book exposure.
If you want to understand what "Yes" and "No" shares actually represent before you click either button, our primer on Yes and No shares is the place to start.
Regulation: the part that is genuinely the same
Both platforms operate under CFTC oversight. Kalshi as the exchange, Robinhood as the broker. This matters because it means both are legal in the federal sense across the United States, subject to state-level frictions in a handful of states (Nevada, New Jersey, and a few others have raised objections to specific contract categories, particularly sports). It also means the contracts themselves are not gambling products in the regulatory sense; they are commodity derivatives.
The practical implication is that US tax treatment of winnings is identical regardless of which platform you used to place the trade. Event contract gains are typically treated as short-term capital gains or, in some cases, under Section 1256 rules. Our overview of how prediction market winnings are taxed in the US and UK covers the mechanics.
State-level access varies. If you live in a state where Kalshi has restricted certain categories (sports contracts have been the live legal question), Robinhood is likely restricted in the same categories, because it is routing into the same exchange. The broker layer does not create new legality. It inherits the exchange's legal position.
Liquidity and pricing: where the differences bite
Here is the trader's question that matters: if I want to put $5,000 on a single contract, do I get the same fill?
Mostly, yes. If Robinhood is routing into Kalshi's order book, your order is interacting with the same liquidity any Kalshi-direct trader would see. The fill price should be the same, minus any platform-specific fee differences. But two things complicate this.
First, Robinhood does not always route to Kalshi. Some contracts are routed to ForecastEx instead. ForecastEx is a separate CFTC-regulated exchange with its own (typically thinner) order book. A contract that exists on both exchanges may have noticeably different prices on each, and your fill depends on which one Robinhood routes you to.
Second, the interface choice influences trading behaviour. Robinhood users tend to use market orders. Kalshi users are more likely to use limits, sit on the order book, and wait for fills. The same trader, on the same contract, will often end up with a slightly worse effective price on Robinhood simply because the interface nudges them toward speed over price discipline.
For small, casual trades, this is noise. For position sizes that matter, it is real money.
The editorial take
If you are a serious prediction markets trader, Kalshi is the answer. The catalogue is wider, the order book is deeper in the markets that have liquidity at all, and the trading tools are built for the job. The friction of opening a separate account is paid back within a handful of trades.
If you are a Robinhood-native investor who treats event contracts as an occasional flutter alongside your S&P 500 holdings, Robinhood is fine. The contracts are real, the regulation is real, the fills are usually decent. You will miss out on long-tail markets and pay slightly more in fee-plus-execution terms, but you will not have to learn a new interface or move money around.
The worst answer is to use both without understanding which is which. Trading the same contract on Robinhood today and Kalshi tomorrow, without realising you are trading on the same exchange via different brokers, leads to confused mental accounting and occasionally to confused tax filing.
iPredicta tracks event contracts across Kalshi, Polymarket, and the regulated US venues, surfacing price moves, liquidity shifts, and the markets worth watching for US-based readers. The platform exists for traders who want to see what is moving without having to refresh five different apps. Whether you end up trading on Kalshi directly or through Robinhood, the markets worth your attention are the same ones.
Frequently asked questions
Is Robinhood prediction markets the same as Kalshi?
Not the same company, but often the same underlying exchange. Robinhood is a broker that routes event contract orders into CFTC-regulated exchanges, primarily Kalshi and ForecastEx. When you trade a contract on Robinhood that is listed on Kalshi, your order is interacting with Kalshi's order book through Robinhood as the intermediary. The contract is identical, the regulation is identical, and the resolution is identical. What differs is the interface, the fee structure, the catalogue surfaced to you, and occasionally the exchange your order is routed to. Think of Robinhood as a layer on top of Kalshi (and other exchanges), not a competitor to it.
Which platform has lower fees on event contracts?
It depends on the contract and the trade size, but Kalshi's volume-tiered structure generally favours active traders while Robinhood's flat per-contract fee can be cheaper for small one-off trades. Kalshi's fees scale with the contract's proximity to 50 cents and are reduced at higher volume tiers, which rewards traders who place many trades or trade in size. Robinhood's fees are typically a fixed amount per contract regardless of size, which is friendlier for someone placing a single $20 bet but more expensive proportionally if you scale up. Run the numbers on your typical trade size before choosing.
Can I trade the same political markets on both Kalshi and Robinhood?
The headline political contracts, yes; the long-tail ones, often only on Kalshi. Major presidential, congressional control, and gubernatorial contracts are typically available on both platforms. But Kalshi lists hundreds of more granular political markets (individual House races, specific primary outcomes, narrow policy questions) that Robinhood does not surface in its prediction markets tab. Robinhood curates for mainstream appeal. Kalshi lists for traders willing to dig. If your interest is in specific, lower-profile political contracts, you will need a Kalshi account to access them at all.
Are prediction markets legal in all US states on Robinhood?
Federally yes, but state-level restrictions apply to specific contract categories and Robinhood inherits them from the exchanges it routes to. Both Kalshi and Robinhood operate under CFTC regulation, which establishes federal legality across the United States. But several states (Nevada, New Jersey, and others at various points) have raised objections specifically to sports event contracts, arguing they look more like gambling than commodity derivatives. Those state-level frictions affect Robinhood the same way they affect direct Kalshi users, because the broker cannot offer contracts the underlying exchange has paused in your state. Our guide to US prediction market legality covers the state-by-state position.
Should beginners start on Kalshi or Robinhood?
Robinhood, if you are already a Robinhood user; Kalshi, if you are starting from scratch and intend to actually learn the product. Robinhood's interface assumes you know nothing about order books and shields you from the complexity, which is a feature for a true beginner placing their first event contract trade. Kalshi's interface assumes you want to see what is happening and lets you trade more deliberately. If event contracts are going to be a serious part of how you spend your time and money, learning Kalshi from the start is worth the extra friction. If they are a curiosity, Robinhood is the gentler entry point.