Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
46% | 54% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
46% | 54% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Market context
Polymarket is pricing this BTC move contract at **46% YES**, which implies a slight lean towards the Aug. 4 noon ET Binance close finishing above the Aug. 3 noon ET close. The market settles on a straightforward conditional-token outcome in USDC on Polygon, but the reference is narrow: it is the final **Binance BTC/USDT 1-minute candle close at 12:00 ET** on each date, not a broader daily benchmark, so a few hundred dollars of intraday noise can decide the result.
The read-through from comparable Bitcoin conditions is that this sits in a range where small reversals matter more than trend calls. Recent market snapshots place BTC around the low- to mid-$63,000s, with one report describing Bitcoin trading near $63,000 after oscillating between roughly $62,500 and $63,500, while another quoted a 7 a.m. ET spot price of $62,706.56 on Aug. 3[1][18]. That matters for a noon-to-noon comparison: if BTC simply chops inside that band, the contract can settle either way without any large directional move.
A trader should watch for any catalyst that changes spot demand or risk appetite before the Aug. 4 noon ET cut-off, especially regulatory headlines, institutional flow commentary, and any sudden shift in geopolitical sentiment. One current market note highlighted pressure from a hardware-wallet incident, doubts over a key US digital asset bill, and cautious institutional capital, alongside a market struggling to hold momentum even after de-escalation news on Iran[1]. In practice, the relevant question is whether BTC can hold above the local $62,400–$62,500 support zone cited in that note, or whether a brief push towards $63,500 and beyond arrives before the Binance candle locks in[1].
Methodology
We track Bitcoin Up or Down on August 4? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
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 PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade Bitcoin Up or Down on August 4? on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
Open live market →