Polymarket vs Robinhood: which should you use?

Polymarket vs Robinhood at a glance

Both are CFTC-regulated, and both list all six categories we track. Past that, they are built differently. The table shows where they part.

One note first. For Americans, “Polymarket” means Polymarket US, so its column shows that app. The international site, polymarket.com, is close-only from the US.

The real difference between Polymarket and Robinhood

It is not regulation. Both answer to the CFTC. The difference is what each one is: an exchange, or a broker.

Polymarket US is the exchange. It trades on QCX, a CFTC-designated exchange since July 9, 2025, and clears at its own clearinghouse. It opened to Americans in December 2025.

The name covers two products. The international site runs on crypto, and its footer says the CFTC does not regulate it. Americans can exit old positions there, but not open new ones.

Robinhood is the broker. Its subsidiary, Robinhood Derivatives, is a CFTC-registered futures commission merchant. It takes your order and sends it to an exchange.

It routes to four: Kalshi, ForecastEx, Rothera and Crypto.com's exchange, CDNA. Polymarket's exchange is not among them. You cannot trade a Polymarket contract on Robinhood.

One of the four is partly Robinhood's own. A Robinhood and Susquehanna joint venture bought 90% of Rothera in January 2026. Robinhood names most of its board.

So there is no shared book here. The choice is Polymarket US's own market against a Robinhood account that reaches four others.

Can you compare Polymarket and Robinhood prices?

Robinhood publishes no machine-readable prices, so no market can be priced on both here.

Not on one screen. Robinhood shows prices in its app and on its website, but publishes no feed we can read.

Polymarket's public prices come from its international book. Americans can read them but not trade them. Polymarket US runs a separate book, so its prices can differ.

Here is what you can compare. Many Robinhood contracts are Kalshi's, traded on Kalshi's order book. Kalshi's prices are public, and our Kalshi vs Polymarket page sets shared questions side by side.

Price is only half the cost. The same contract at the same price costs more through Robinhood, because two fees apply. The next section does the arithmetic.

Polymarket vs Robinhood fees on the same $100 trade

Polymarket US charges one fee. Takers pay 0.0695 × contracts × price × (1 − price). Makers pay nothing. From October 6, 2026, only makers trading $10 million or more a month earn a rebate.

Robinhood charges two. Its commission is 10% × price × (1 − price) a contract, capped at 1¢, or 5% with Gold. The exchange then adds up to 1¢.

On Kalshi contracts, that exchange fee is a flat 1¢. So $100 at 50¢ costs $4.00 through Robinhood: $2 in commission and $2 to Kalshi. Polymarket US takes $3.48.

Long shots widen the gap. At 10¢, $100 buys 1,000 contracts, and Robinhood's two fees come to $19. With Gold, they come to $14.50. Polymarket US charges $6.26.

The table assumes a Kalshi-listed contract, where the exchange fee is 1¢. Its other exchanges charge up to 1¢, and we found no exact rate for them. Robinhood charges both fees again when you sell.

Moving money is free on both by bank. Robinhood charges 1.75% for an instant withdrawal and $25 for a wire. Every rate is on our Polymarket fees and Robinhood fees pages.

Is Polymarket or Robinhood legal in the US?

Both, at the federal level. Polymarket US trades on QCX, designated by the CFTC in July 2025. Robinhood Derivatives is a CFTC-registered broker and a National Futures Association member.

By our state records: Polymarket’s contracts are restricted or contested in 12 states. Robinhood’s contracts are restricted or contested in 8 states. Each state's page is on our prediction market legal hub.

Polymarket carries an older question. In January 2022 the CFTC fined it $1.4 million for unregistered markets, and it blocked Americans. It came back in December 2025, as Polymarket US.

State law is where the fights are, and they are about sports. Nevada won a court order against Polymarket US in May 2026. New York sued it on September 24.

Robinhood's list is longer. Maryland ordered it to stop sports contracts in April 2025. Nevada residents have been unable to open new ones since December 1, 2025. In Michigan, new ones stopped on September 9, 2026.

Robinhood's own Nevada appeal failed. On August 28, 2026, the Ninth Circuit held that its sports contracts are not “swaps” under federal law. Every case is on our prediction market legal tracker.

Polymarket or Robinhood: which is safer?

On money, they are close. Both keep customer cash apart from company funds, under CFTC rules. Neither balance is FDIC- or SIPC-insured.

Where it sits differs. On Polymarket US, your cash goes to its clearinghouse, QC Clearing. On Robinhood, the broker holds it in a segregated account.

Robinhood's account holds more than it must. CFTC data for July 31, 2026 show $149 million there, against $26.2 million required.

The SIPC point confuses people. Robinhood's stock brokerage is a SIPC member. Robinhood says its derivatives arm “is not FDIC insured or SIPC protected.”

Polymarket US's fine print has a caveat. Its participant agreement lets the clearinghouse commingle or invest customer cash, within CFTC rules.

Both check ID. Robinhood needs a valid Social Security number to open any account. Polymarket US lists the full number as a required field in its identity checks.

Both carry a record. Polymarket has the 2022 CFTC penalty and a 2026 report of paid fake-win videos. Robinhood faces class actions calling its sports contracts illegal gambling.

None of the cases we found says either refused to return deposits. The details are in our Polymarket review and Robinhood review.

Polymarket vs Robinhood markets

Both list all six categories we track: sports, politics, economics, crypto, culture and climate. Robinhood adds hub pages for metals, commodities and 15-minute crypto prices.

Robinhood's range comes from four exchanges. Football routes to Kalshi, Rothera or CDNA, depending on what each lists. Midterm contracts go to Kalshi and Rothera.

Both offer combos. Polymarket US joins 2 to 10 markets into one position. Robinhood's custom combos take up to 10 legs on pro football and basketball.

The Polymarket counts here come from its international site. Robinhood publishes no counts, so its column is empty. Compare daily totals on our prediction market volume page.

Deposits, withdrawals and payouts on Polymarket and Robinhood

Polymarket US takes debit card, bank transfer and wire, with a $1,000 wire minimum. Robinhood funds event contracts from your brokerage cash, swept across automatically.

Each has a catch. On Robinhood, Instant Deposits may not apply to event contracts. A bank transfer can take 1 to 5 business days.

On Polymarket US, card and bank deposits give instant buying power. But they must clear, in 3 to 4 business days, before money can leave. So must profits made with them.

Withdrawals follow different rules. Polymarket US repays the card or bank you funded from, oldest deposit first, for free. Cards and banks take 3 to 4 business days; wires about 1.

Robinhood sends a bank withdrawal free, after 1 day on its side. A debit card or instant transfer takes up to 30 minutes, for 1.75%. Wires cost $25.

Winning contracts pay $1 on both. Robinhood says most sports payouts arrive within 1 to 2 business days. Polymarket US sports markets often resolve shortly after the official result.

Settlement and disputes

Neither app picks the winner itself. On Polymarket US, each market settles from the sources named in its rules, and its clearinghouse pays out.

On Robinhood, the exchange that lists the contract decides the result. Robinhood says it cannot override a settlement, even when a sports app shows another score.

So a Robinhood contract follows the rules of Kalshi, ForecastEx, Rothera or CDNA. Read the rules of the exchange behind it. Election markets can take much longer on both.

Polymarket's international site settles through UMA, a crypto oracle, with token-holder votes on disputes. That matters only there, and Americans cannot open new positions on it.

Polymarket and Robinhood apps and support

Polymarket US: App Store 4.6 (60K) · Google Play 4.3 (13.2K). Robinhood: App Store 4.3 (4.9M) · Google Play 4.7 (577K), for the whole Robinhood app. Ratings read September 25, 2026.

Robinhood's scores rate its whole app, stocks and crypto included. Polymarket US's rate its prediction market alone.

Polymarket US trades on iOS, Android and the web, at polymarket.us, and offers an API. Robinhood takes event-contract orders only in its iOS and Android apps.

Support differs more. Robinhood has 24/7 in-app chat, with phone callbacks on weekdays. Polymarket US offers in-app chat and email, and lists no phone line.

Polymarket US also pauses each week. Maintenance runs Thursdays from 6 to 8 a.m. Eastern, and open orders are cancelled before it starts.

Can you use Polymarket and Robinhood together?

Yes. Nothing stops an American holding accounts on Polymarket US and on Robinhood.

They are two separate books, not two doors to one. Robinhood does not route to Polymarket's exchange, so the same question can trade at different prices.

Arbitrage is harder than it looks. At 50¢, Polymarket US's taker fee and Robinhood's two fees on a Kalshi contract add about 3.7¢ a pair. The price gap must beat that.

Then check the rules. Two markets can look identical and settle on different sources or dates. We match questions listed on both Polymarket and Kalshi in our live prediction market odds.

Polymarket or Robinhood: which should you pick?

On our published method, Polymarket US ranks third of 15 apps at 4.7 out of 5. Robinhood ranks sixth, at 4.3. Your own use decides it.

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