3
venues priced live
383,340
contracts tracked
1,784
markets priced on two or more venues
50
US states mapped

What prediction markets are

A question you can trade

A prediction market lists yes-or-no questions as contracts. Each pays $1 if the event happens and $0 if it doesn't, so its price is a probability: a contract at 62¢ says the market thinks there is a 62% chance.

What prediction markets are, explained

A price worth reading

On an exchange, Yes and No add up to about 100% and the venue charges a fee. A sportsbook quoting −110 on both sides adds up to 104.8% and keeps 4.5% of every dollar staked, whatever happens. That margin is why a market price reads as a forecast and a bookmaker's line doesn't.

Convert any odds to a probability

How it works

How prediction markets work

  1. Pick a question

    Every market is a yes-or-no question with a closing date and a named source that decides the answer.

  2. Buy Yes or No

    The price is the probability. Yes at 62¢ costs $0.62 and says the market thinks there is a 62% chance.

  3. Get $1 if you're right

    A correct contract pays $1.00 when the market settles and a wrong one pays nothing. You can also sell before then, at the current price.

$100 buys 161 Yes contracts at 62¢ ($99.82). If the answer is yes they pay $161.00, a $61.18 profit before fees. If it is no, they pay nothing.

Why CoinStats

What no single prediction market will show you

CoinStats isn't a venue, so it can put the same question side by side on several, and say where each one is open.

Price

The same question, priced differently

1¢ apart

On average, across the 8 busiest questions more than one venue prices right now (best to worst price), and 2¢ on “Will the Fed increase interest rates by 50+ bps after the December 2026 meeting?”. Kalshi's Yes is the cheaper one on 1 of 8.

Kalshi vs Polymarket, compared

Legality

Where prediction markets are legal

19 states

have acted against sports contracts, restricting or contesting them, and the federal appeals courts have split on whether states may. Non-sports contracts on CFTC-regulated venues trade nationwide.

Prediction market legality by state

Fees

What a trade actually costs

$2.00

in fees on $100 of a politics contract at 50¢ on Polymarket's international book, $3.48 to $4.75 on Polymarket US and $3.50 on Kalshi; at 95¢ the Polymarket figure is $0.20. Every published fee peaks on a coin flip and shrinks towards either end.

Prediction market fees, compared

Smart money

Whale and smart-money flow

Strong yes

on “Will J.D. Vance win the 2028 Republican presidential nomination?”, from 7 flagged wallets. 17 of the 50 busiest Polymarket markets carry a directional signal.

Where the whales and smart money are positioned

Venues

Prediction market platforms, compared

5 platforms are compared in full here, out of 15 apps we rank; 3 venues are priced live. Polymarket, Polymarket US and Kalshi publish prices CoinStats compares live; DraftKings Predictions and Robinhood show live prices without an account; FanDuel Predicts keeps prices inside the app. Our ranking of the best prediction market apps covers every app.

Polymarket

Dollars in and out, on a CFTC-regulated exchange

CFTC · Polymarket US: debit card, ACH, wire; international app: crypto, held as pUSD (Polygon) · 15,931 open questions · $39.1M traded in 24h

Compared liveReview
Kalshi

Dollars in and out, on a CFTC-regulated exchange

CFTC · ACH; RTP; debit card; Apple Pay; Google Pay; PayPal; Venmo; Cash App (deposits only); wire; crypto deposit · 21,577 open questions · $74.2M traded in 24h

Compared liveReview
DraftKings Predictions

Event contracts inside an app you may already use

CFTC

Public pricesReview
FanDuel Predicts

Event contracts inside an app you may already use

CFTC · debit card; Apple Pay; online banking

Prices in the appReview
Robinhood

Event contracts inside an app you may already use

CFTC · ACH; debit card; wire

Public pricesReview

By the numbers

Prediction markets by the numbers

Markets

Open questions right now

37,508

15,931 on Polymarket and 21,577 on Kalshi, across 9 categories. Sports has the most.

Prediction market odds by category

Volume

Traded on Polymarket in 24 hours

$39.1M

Kalshi: $74.2M. Both venues count every contract traded at its $1 face value, so their figures compare directly. Polymarket's share of the two in the last 24 hours: 34.5%.

Prediction market volume by venue

Outside the US

Where each venue is closed

55 countries

are restricted on Kalshi. Polymarket blocks 4 and limits 37 more to closing positions.

Prediction market availability by country

Courts

The latest court or regulator action

Nov 4, 2026

Kalshi · CA: On remand from the Ninth Circuit, Judge Jacqueline Scott Corley granted the tribes' motion for a preliminary injunction. 89 matters tracked.

Prediction market litigation tracker

How to choose a prediction market platform

Five checks before you open an account on any of them.

  1. Check it's open where you are. Sports contracts are contested in 19 states, and outside the US each venue keeps its own restricted list. By state · by country
  2. Work out what a trade costs. Fees peak at 50¢, and on a thin market the spread can cost more than the fee. Fees compared
  3. Compare the price before you buy. When two or more venues list a question, their prices often differ. Kalshi vs Polymarket
  4. Read how it settles. Two venues can word the same question differently and pay out differently. Resolution source
  5. Fund it the way the venue expects. Polymarket US takes debit card, ACH and wire; Kalshi takes bank, card, wire, wallet and crypto deposits. Every venue's funding

How we compare prediction market platforms

Every number here comes from a venue's own published data or public API, and each page links its source. Here venues are listed on facts; our best prediction markets ranking scores them by a published method. CoinStats may earn a commission on venue links; no venue pays for placement.

Our methodology

Trading responsibly

An event contract can lose all of its value, and nothing on this site is advice. Only trade what you can afford to lose, and if trading stops feeling like a choice, free and confidential help is available around the clock.

Responsible trading

Learn more about prediction markets

What are prediction markets?

The $1-or-$0 contract, and why its price is a probability.

Prediction market glossary

30 terms, from bid and ask to settlement.

Odds converter

American, decimal and fractional odds as a probability.

Payout calculator

What a position pays after fees, and where it breaks even.

Find the prediction market platform that fits you

Compare every venue on the facts, then check it's open where you live.

Prediction market questions

What is a prediction market?

An exchange where you trade contracts on whether an event happens. Each contract pays $1 if it does and $0 if it does not, so its price, say 62¢, is the market’s probability.

Is a prediction market the same as betting?

Legally no: event contracts on a CFTC-regulated exchange are derivatives, settled against a stated source, and that classification is the basis of their legality. Several states dispute it for sports contracts specifically, and the appeals courts have split.

Which prediction market platforms are available in the US?

Polymarket, Polymarket US, Kalshi, DraftKings Predictions, FanDuel Predicts, Robinhood. Polymarket, Polymarket US and Kalshi publish prices CoinStats compares live; DraftKings Predictions and Robinhood show live prices without an account; FanDuel Predicts keeps prices inside the app.

Are prediction markets legal in every state?

Non-sports contracts on CFTC-regulated venues trade nationwide. Sports contracts are contested: 19 states have acted against them, and the federal appeals courts have split on whether states may.

How do prediction market venues make money?

From trading fees. The venues that publish a schedule charge a fee that is largest at 50¢ and shrinks towards either end; on Polymarket only the taker pays.

What is the most I can lose on a contract?

What you paid for it, plus fees. A contract that resolves against you settles at $0.

Can I sell before the event happens?

Yes. Contracts trade until the market closes, so you can sell at the current price, at a profit or a loss, instead of waiting for the result.

Why do two venues show different prices for the same question?

They are separate order books with different traders, fees and settlement wording. Across the 8 busiest questions both list right now, the Yes price differs by 1¢ on average.

How fresh are these prices?

Each cross-venue price carries the time it was last fetched from the venue, shown with it on the odds pages. Catalog prices come from a sync and can lag the live book by a few points.

CoinStats may earn a commission on links to venues. Event contracts are financial derivatives regulated as such, not wagers, and trading them involves risk of loss. Prices shown are indicative and may differ from the venue at execution.