Ten platforms now handle almost all prediction market volume in the US and abroad, and picking the wrong one costs you real money — in fees, in markets you can't access, or in a withdrawal that sits pending for a week while you refresh your email. This collection of prediction market reviews covers every platform worth your attention in 2026, from Polymarket's roughly $7 billion in monthly volume to PredictStreet's pre-launch Gibraltar license. We ranked each one on the same five criteria every time, so the comparisons actually mean something instead of reading like ten separate marketing pages stitched together.
The criteria: fee structure and how it actually hits your P&L, market breadth across sports and politics, regulatory status (does the platform have a real license or is it operating in a gray zone), execution quality measured by spreads and slippage on size, and withdrawal speed — because a platform that takes five business days to release your money isn't a serious trading venue. Combined, Polymarket and Kalshi account for roughly 97.5% of total industry volume, which tells you most of the real trading happens on two platforms. Everything else competes for the remainder, and some of them compete well.
If you're new to how any of this works mechanically — how contracts settle, how prices reflect probability, what a maker rebate is — start with our guide on how prediction markets work before diving into individual platforms. For a shorter cut straight to app rankings, see our best prediction market apps hub page, which this article expands on in depth.
Polymarket — 4.5/5
Polymarket remains the largest prediction market by volume, running roughly $7 billion a month as of February 2026 with about $400 million in open interest at any given time. The platform's biggest 2025 move was acquiring QCEX for $112 million specifically to get a CFTC license, a bet that paid off as Polymarket now operates as a regulated US entity rather than the offshore-only platform it was through 2024. ICE has invested up to $2 billion into the company, and Polymarket is reportedly seeking a $20 billion valuation in its next funding round.
Fees on Polymarket changed meaningfully on March 30, 2026, when taker fees expanded to a range of 0.75% to 1.80% depending on market category. Maker orders remain free and come with rebates ranging from 20% to 50%, which matters enormously if you're a limit-order trader rather than someone hitting the book at market. Everything settles in USDC on Polygon, and the platform pays 0% interest on idle balances — a real drawback compared to Kalshi's roughly 4% APY on cash sitting in your account. Our full Polymarket review covers deposit flows, and if you're funding an account for the first time, our guide on how to deposit on Polymarket walks through the USDC bridge process step by step.
The forecasting accuracy is genuinely impressive: Polymarket's Brier scores run around 0.09, translating to roughly 94% directional accuracy across resolved markets. That's the reason institutions and serious traders take the platform seriously despite its crypto-native plumbing. The catch is withdrawal friction for anyone not comfortable moving USDC — see our guide on how to withdraw from Polymarket if you're stuck on that step. Legality also varies by state; check where Polymarket is legal before you deposit a dollar.
| Metric | Polymarket |
|---|---|
| Rating | 4.5/5 |
| Monthly volume | ~$7B (Feb 2026) |
| Taker fees | 0.75%-1.80% |
| Settlement | USDC on Polygon |
| Interest on idle cash | 0% |
Kalshi — 4.3/5
Kalshi is the volume leader by a growing margin, running approximately $9.8 billion a month in February 2026 against Polymarket's $7 billion, and pulled in around $260 million in 2025 revenue. It's the only platform on this list operating as a fully CFTC-regulated designated contract market, meaning contracts settle in USD, not crypto, and the platform is available in 40-plus states without the legal ambiguity that follows Polymarket around. Kalshi raised $1 billion in a Series E round in December 2025 at an $11 billion valuation and is now also chasing a $20 billion valuation alongside Polymarket.
Fees run around $0.02 per contract on a variable schedule that's genuinely simpler than Polymarket's tiered percentage system — our Kalshi fees explained breakdown covers the full schedule by category. Idle cash earns roughly 4% APY, which is a meaningful edge for traders who park capital between trades rather than deploying it constantly. Kalshi also issues 1099-MISC forms to US traders, which simplifies tax season considerably compared to Polymarket's global policy of issuing no tax documents at all — see our guide on how prediction market winnings are taxed for what that difference actually means on your return.
The regulatory clarity comes with legal noise: Arizona filed criminal charges against Kalshi on March 18, 2026, and state courts remain split, with Tennessee ruling in Kalshi's favor while Nevada, Massachusetts, Maryland, and Ohio have all ruled against the platform's sports-adjacent contracts. CFTC Chairman Selig supports federal preemption that would settle this state-by-state fight, but until Congress or the courts resolve it, Kalshi's legal footing shifts depending on your zip code. Depositing is straightforward — our how to deposit on Kalshi guide covers ACH and debit funding — and for a direct head-to-head, read our Polymarket vs Kalshi comparison.
| Metric | Kalshi |
|---|---|
| Rating | 4.3/5 |
| Monthly volume | ~$9.8B (Feb 2026) |
| Fees | ~$0.02/contract |
| Settlement | USD |
| Interest on idle cash | ~4% APY |
Robinhood Prediction Markets — 4.0/5
Robinhood doesn't run its own order book — it's a front end powered by Kalshi's regulated infrastructure, which means you get Kalshi's CFTC-regulated contracts inside an interface you probably already have on your phone. That's the entire value proposition, and it works: if you already trade stocks on Robinhood, adding prediction market exposure requires no new account, no new deposit method, no learning a new UI. The tradeoff is that you're limited to whatever markets Kalshi lists through the Robinhood integration, which is narrower than trading directly on Kalshi's own app.
For active traders chasing tighter spreads or a fuller market list, going direct to Kalshi usually makes more sense. For casual traders who want to put $50 on a Fed rate decision without opening a crypto wallet or a separate brokerage account, Robinhood's simplicity is the entire point. Our full Robinhood prediction markets review covers the account setup, and our Robinhood vs Kalshi comparison breaks down exactly where the two diverge on execution and market breadth.
| Metric | Robinhood |
|---|---|
| Rating | 4.0/5 |
| Powered by | Kalshi |
| Best for | Existing Robinhood users |
| Market breadth | Narrower than direct Kalshi |
OG (Crypto.com) — 3.8/5
OG is Crypto.com's prediction market play, and it's built around social features first — leaderboards, copy-style engagement, a feed-driven interface — with margin trading reportedly planned for a future rollout. It leans on Crypto.com's existing crypto-native user base rather than trying to pull in traditional sports bettors or political forecasters cold. If you already hold funds on Crypto.com and want prediction market exposure without moving assets to a new platform, OG removes that friction entirely.
The market list is thinner than Polymarket's or Kalshi's, and the social-first design means the trading experience feels closer to a crypto exchange feature than a standalone prediction market. That's not necessarily a flaw — it's a deliberate choice to serve an existing user base rather than compete head-on for volume. Our full OG review covers the fee structure and margin plans in more detail.
| Metric | OG |
|---|---|
| Rating | 3.8/5 |
| Focus | Social trading, Crypto.com integration |
| Margin trading | Planned |
| Best for | Existing Crypto.com users |
Opinion — 3.5/5
Opinion positions itself as the macro-focused prediction market, leaning into Fed decisions, inflation prints, GDP releases, and other economic data rather than the sports-and-politics mix that dominates Polymarket and Kalshi. That specialization is both its strength and its ceiling — traders who specifically want clean exposure to macro events without wading through hundreds of sports markets get a cleaner interface, but the overall market list is much smaller than the two industry leaders.
Liquidity on Opinion's niche markets can be thinner than on comparable Kalshi or Polymarket contracts, which matters if you're trying to size into a position without moving the price against yourself. It's a reasonable second account for traders who specifically want macro exposure, but it's not a replacement for a primary platform. Read our full Opinion review for the complete fee and market breakdown.
Predict.fun — 3.3/5
Predict.fun runs on BNB Chain and differentiates itself with zero trading fees and yield paid on collateral sitting in your account — a genuinely unusual combination in an industry where most platforms charge something on every trade. The zero-fee structure is attractive on paper, but it comes from a smaller, crypto-native platform with far less volume and market breadth than Polymarket or Kalshi, so you're trading fee savings against liquidity and market selection.
If you're already comfortable with BNB Chain wallets and want to earn yield on capital between trades, Predict.fun offers something neither Polymarket nor Kalshi does. For most traders, it works better as a satellite account for specific markets than a primary trading venue.
FanDuel Predicts — Under Review
FanDuel Predicts brings a sportsbook giant's brand recognition into prediction markets, which matters for users who already trust FanDuel for sports betting and want a familiar interface for event contracts. The platform is still building out its full market slate compared to established players, and its regulatory path follows the same state-by-state patchwork that affects every sports-adjacent contract platform right now. Our full FanDuel Predicts review covers what's live today and what to expect as the market list expands.
DraftKings Predictions — Under Review
DraftKings takes a similar approach to FanDuel — leveraging an existing sportsbook user base to cross-sell prediction market contracts rather than building a standalone platform from scratch. The appeal is identical: no new account, no new deposit rail, just an added product inside an app millions of people already use for fantasy sports and betting. Our full DraftKings Predictions review covers current market availability and how it stacks up against the dedicated platforms above it on this list.
Manifold Markets — Play Money, Real Data
Manifold operates on play money rather than real currency, which immediately disqualifies it from any comparison based on fees or withdrawal speed — there's nothing to withdraw. What Manifold offers instead is a genuinely large, community-run market list covering everything from niche tech predictions to celebrity gossip, run by a forecasting community rather than a commercial trading desk. It's a legitimate tool for calibration practice and for testing forecasting skill before you put real money on Polymarket or Kalshi, and our Manifold Markets review covers exactly how the play-money economy works and whether it's worth your time.
PredictStreet — Pre-Launch
PredictStreet is building toward launch with a Gibraltar license and a partnership tied to the FIFA World Cup, positioning itself as Europe's answer to Polymarket rather than another US-focused platform competing for CFTC approval. The Gibraltar framework gives it a different regulatory path than the state-by-state fight playing out for Kalshi and Polymarket in the US, which could matter if European regulation moves faster than American legislation does. It's not live for full trading yet, so there's no rating to assign, but our full PredictStreet review tracks the rollout, and our PredictStreet vs Polymarket comparison lays out what to expect once it opens. If you want to get an account ready ahead of launch, see our guide on how to sign up on AdiPredictStreet.
Master Comparison Table
| Rank | Platform | Rating | Best For | Regulatory Status |
|---|---|---|---|---|
| 1 | Polymarket | 4.5/5 | Volume, forecasting accuracy | CFTC-licensed via QCEX |
| 2 | Kalshi | 4.3/5 | US traders wanting full regulation | CFTC-regulated DCM |
| 3 | Robinhood | 4.0/5 | Existing Robinhood users | Powered by Kalshi |
| 4 | OG (Crypto.com) | 3.8/5 | Existing Crypto.com users | Crypto-native |
| 5 | Opinion | 3.5/5 | Macro-focused traders | Limited |
| 6 | Predict.fun | 3.3/5 | Zero-fee BNB Chain traders | Crypto-native |
| — | FanDuel Predicts | Under review | FanDuel sports bettors | State-by-state |
| — | DraftKings Predictions | Under review | DraftKings sports bettors | State-by-state |
| — | Manifold Markets | Play money | Forecasting practice | Not applicable |
| — | PredictStreet | Pre-launch | European traders, World Cup | Gibraltar license |
How to Choose Between Them
If you want the deepest markets and the best forecasting track record, Polymarket wins — its Brier scores and $7 billion in monthly volume back that up, and the QCEX acquisition gives it real US regulatory footing now. If you want the simplest tax situation and the clearest regulatory status in the US, Kalshi's 1099-MISC forms and CFTC license make tax season and legal questions easier to answer. For sports specifically, our guide on prediction markets vs sports betting explains why event contracts often price better than a traditional sportsbook line.
If you already use Robinhood, Crypto.com, FanDuel, or DraftKings for something else, the integrated prediction markets on those platforms remove the friction of a new account — a real consideration if you're testing the waters rather than committing serious capital. Serious traders running strategies across platforms should read our guide on arbitraging prediction markets between Polymarket and Kalshi, since price discrepancies between the two largest platforms are the most common source of low-risk edge in this space. Whatever you pick, confirm your state's legal status first — our state-by-state legal map and our broader guide on whether prediction markets are legal in the US cover the current patchwork in detail.
Frequently Asked Questions
Which prediction market is the best overall in 2026?
Polymarket and Kalshi are effectively tied at the top, controlling about 97.5% of total industry volume between them. Polymarket wins on forecasting accuracy and market depth; Kalshi wins on US regulatory clarity and tax simplicity. See our Polymarket vs Kalshi comparison for the full breakdown.
Is Polymarket legit and safe to use?
Yes — Polymarket's $112 million QCEX acquisition gave it a real CFTC path, and ICE has invested up to $2 billion into the platform. Our Polymarket legitimacy review covers the evidence in detail, including its Brier score accuracy record.
Which platform has the lowest fees?
Predict.fun charges zero trading fees, but has far less volume and liquidity than Polymarket or Kalshi. Among the two major platforms, Kalshi's roughly $0.02-per-contract structure is generally cheaper for small positions than Polymarket's 0.75%-1.80% taker fees.
Do I have to pay taxes on prediction market winnings?
Yes — the IRS has issued zero formal guidance specific to prediction markets, but winnings are still taxable income under existing rules. Kalshi issues 1099-MISC forms while Polymarket issues nothing globally, so recordkeeping falls entirely on you for Polymarket trades. See our prediction market tax guide for the three possible tax treatments and the new 90% gambling loss cap starting tax year 2026.
Are prediction markets legal in my state?
It depends heavily on the state and the platform. Kalshi is available in 40-plus states as a regulated DCM, but Nevada, Massachusetts, Maryland, and Ohio have ruled against its sports-adjacent contracts while Tennessee ruled in its favor. Check our state-by-state legal map before depositing.
What's the difference between Robinhood Predicts and Kalshi directly?
Robinhood doesn't run its own contracts — it's a front end for Kalshi's regulated markets, so you get a familiar interface but a narrower market list than trading on Kalshi's own app. Our Robinhood vs Kalshi comparison covers the exact tradeoffs.
Is Manifold Markets real money or play money?
Manifold uses play money exclusively, so there's nothing to deposit or withdraw. It's useful for practicing forecasting calibration before trading real money on Polymarket or Kalshi, as covered in our Manifold Markets review.
Which prediction market app should beginners start with?
Robinhood or an integrated sportsbook option like FanDuel Predicts makes sense if you already have an account there and want to test the waters with small amounts. For a full ranked breakdown of every option, see our best prediction market apps guide.
