Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Robinhood Prediction Markets) Pick polygram.ink (preferred broker) |
88% | 12% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
88% | 12% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 64,000-66,000 | 88% |
| 62,000-64,000 | 7% |
| 66,000-68,000 | 6% |
| <54,000 | 0% |
| 54,000-56,000 | 0% |
| 56,000-58,000 | 0% |
| 58,000-60,000 | 0% |
| 60,000-62,000 | 0% |
| 68,000-70,000 | 0% |
| 70,000-72,000 | 0% |
| >72,000 | 0% |
Market context
Bitcoin’s noon ET Binance close on 9 August will mostly be a test of whether the market stays inside the recent mid-\$60,000 range or breaks higher in a late-session move. Spot data from early August shows BTC trading around \$64,600–\$65,000, with 7 August closing near \$64,878 and 8 August around \$64,960 on daily references, while CoinDesk and Investing.com both place the live market close to that same band.[2][3][6][12]
That context helps explain why a 0% YES crowd price is unusually sceptical. On Polymarket, the comparable market is split into price brackets, with the current lead around \$62,000–\$64,000 and the next bracket at \$64,000–\$66,000, which suggests traders there are treating a finish near today’s spot as plausible but not dominant.[8] By contrast, Kalshi-style markets typically quote direct implied probabilities, while Betfair and Smarkets express the same view in decimal odds and usually add exchange commission, so the headline price can look different even when the underlying view is similar; KYC and jurisdiction limits also vary materially across those venues.
For traders comparing platforms, the main catalysts are not protocol events but market microstructure and macro headlines that can move BTC across a bracket before the noon ET cut-off. In practice that means watching any weekend exchange flows, ETF-related headlines, and broader risk sentiment, since this market settles on a single Binance 1-minute candle rather than a daily average, making the last few minutes especially important.[1] If spot remains pinned near the current high-\$60,000 area into the settlement window, the result is likely to depend on which bracket the candle close lands in, not on the broader day’s high or low.[1][2]
Methodology
This page compares Bitcoin price on August 9? specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Robinhood Prediction Markets, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.
FAQ
- Polymarket vs Kalshi — which is better?
- Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.
- What does Polymarket cost vs Kalshi?
- Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.
- Which platform has the deepest liquidity?
- Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.
- Is Betfair a Polymarket alternative?
- Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.
- What about Smarkets as an alternative?
- Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.
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