Polymarket US vs Opinion
Same lines, side by side: fee at 50¢, custody, KYC, excluded countries, resolution and volume, from official pages and DefiLlama.
See the 18 differences
| Line | Polymarket US | Opinion |
|---|---|---|
| Type | VenueLists, matches and settles its own markets | VenueLists, matches and settles its own markets |
| Taker fee | 3.48% at 50¢Since 19 October 2026, takers pay 0.0695 × contracts × p × (1 − p): 100 contracts at 50¢ cost $1.74. Table tennis uses 0.10. Makers pay nothing and earn a rebate from $10M of monthly maker volume; takers get 3% to 30% back from $250,000 of monthly volume. | Edge0.5–1% at 50¢Takers pay the market's topic rate × p × (1 − p), capped at 1% at 50¢, with a $0.25 minimum: 100 contracts at 50¢ cost $0.25 to $0.50. Makers pay nothing and receive 50% of the taker fee. Minimum order $5, minimum withdrawal $5. |
| 30-day volume | Edge$3.14B | $267M |
| New-user perk | $25 trading credit after signing up with a referral code and depositing at least $10 | Up to 10% off trading fees with a referral code |
| Custody | Custodial dollar account | EdgeSelf-custody: you trade from your own wallet |
| Identity check (KYC) | KYC requiredEvery account is verified: name, address, Social Security number and a photo ID, with a selfie when needed. | Not documentedNo KYC policy is published; you connect a self-custody wallet such as Binance Wallet, OKX or MetaMask. |
| Excluded countries | Open only to residents of United StatesOpen to US residents only, and trading is not available in Nevada, although its App Store page claims all 50 states. | 14Terms dated 19 October 2025: the US, the UK, France, Ontario, Singapore, Poland, Thailand, South Korea, China, Taiwan and Hong Kong, plus sanctioned countries and regions. The site returns a geo-block page from France. |
| Resolution | Decided by the exchangeMarkets settle under the exchange's rulebook. Polymarket US publishes rule clarifications and can cancel resting orders when it clarifies a market. | AI panel, human appealOpinion AI proposes the outcome from predefined sources, then a jury of models and human reviewers check it. Anyone can dispute within the window, usually two hours, by staking OPN: an upheld dispute returns twice the stake, a rejected one loses it. |
| Settles on | Polymarket Clearing | BNB Chain |
| Collateral | USD | USDT |
| Operator | QCX LLC (Polymarket US)CFTC (DCM, DCO) | Superchillclub Limited |
| Token | No token | OPNBNB Chain |
| Where it runs | Web, iOS, Android | Web |
| Chains | — | EdgeEVMBNB Chain |
| Documented features | 5 of 10 | Edge6 of 10 |
| Order book | Yes | Yes |
| Anyone can create a market | No | Yes |
| Combos / parlays | Yes | Not documented |
| Maker rebates | Yes | Yes |
| Yield on collateral | Not documented | Not documented |
| Trading API | Yes | Yes |
| Mobile app | Yes | Not documented |
| Telegram bot | Not documented | Not documented |
| Own token | Not documented | Yes |
| Points program | Not documented | Yes |
Which one should you pick?
Pick Polymarket US if
You live in the US outside Nevada and want Polymarket in a regulated app with dollar deposits.
Polymarket's regulated twin for Americans: same brand, but a separate CFTC-regulated exchange with dollar accounts, identity checks and its own fee formula. Since 19 October 2026 its taker fee is almost exactly Kalshi's, and it serves no one outside the US.
Read the Polymarket US reviewpolymarket.us
Pick Opinion if
You want macro and political markets on BNB Chain with the cheapest taker fee at 50¢.
A BNB Chain venue built around macro and political markets, with the lowest maximum taker fee in the series, 1% at 50¢, and an AI oracle whose results anyone can dispute by staking its OPN token. Its January 2026 volume drew public questions about wash trading, and DefiLlama filters flagged wallets out of its figure.
Read the Opinion reviewopinion.trade
