Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Review UK) Pick polygram.ink (preferred broker) |
93% | 7% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
93% | 7% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| ↑ 64,000 | 93% |
| ↑ 66,000 | 37% |
| ↓ 60,000 | 18% |
| ↑ 68,000 | 11% |
| ↓ 58,000 | 5% |
| ↑ 70,000 | 4% |
| ↓ 56,000 | 3% |
| ↑ 72,000 | 1% |
| ↓ 54,000 | 1% |
| ↓ 52,000 | 1% |
| ↓ 50,000 | 1% |
| ↑ 76,000 | 0% |
| ↑ 74,000 | 0% |
| ↓ 48,000 | 0% |
Market context
Bitcoin needs to tag a listed level during the 3–9 August window, so the practical question for traders is whether spot can print through a round-number band quickly enough before the market closes. With the crowd currently pricing 0% YES, the book is effectively saying none of the threshold outcomes look reachable at present, which is a very different setup from a directional bet on month-end closes.[3]
Comparable August forecasts have repeatedly clustered around the same support-and-resistance map: downside bids near the low-$60,000s, then heavier resistance in the mid-to-high $60,000s, with bearish views warning that a break of support can extend towards the low-$50,000s.[1][2][5][8][12][13] For a programmatic trader, that means monitoring whether price is within one or two ticks of a market threshold and whether conditional orders, copy-trading triggers, or bots are set to react to a fast move rather than a slow drift; in these markets, the first clean print above a band matters more than the average price over the week.[3]
The main catalysts are scheduled macro and regulatory headlines, plus ETF flow data, because these have been the recurring drivers behind short-term Bitcoin repricing in recent August commentary.[8][13] Crypto-focused forecasts this week also flag “post-Fed positioning” and “ETF inflow watch” as the key dependencies, with resistance around $67,500–$70,000 and support near $59,500–$60,000.[8][12] In practice, traders watching this market programmatically would want alerts on US economic releases, policy statements, and any sudden change in spot ETF flows, because those are the events most likely to push BTC through a strike level inside the settlement window.[8][13]
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
FAQ
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Review UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- How fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
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