Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi vs Polymarket) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Market context
The contract hinges on whether Binance’s BTC/USDT 1-hour candle starting at 7AM ET on 20 July closes higher than it opens. With the crowd-implied probability at 100% for “Up”, the market treats a flat or rising close as virtually certain, a stance that diverges sharply from the 12PM ET hourly market on the same day, which resolved “Down” after the candle closed lower than its open[4].
Historically, 100% implied probabilities on single-hour crypto candles are rare and often precede reversals; the July 20 12PM ET case is a direct counter-example where full consensus failed as price slipped below the open[4]. Comparable intraday hourly candles in mid-2026 show that even in bullish phases, 1-hour closes frequently dip below opens during early-morning liquidity gaps, making the current certainty appear overstated relative to past volatility patterns.
Traders should watch the US macro calendar for any surprise inflation or jobs data released before 7AM ET, as these can trigger immediate volatility on Binance. Additionally, monitor Binance’s funding rates and open interest for the BTC perpetual contract; a sudden spike in short funding often precedes a wick-down that can turn an “Up” candle into “Down”[3]. Recent technical analysis notes Bitcoin is testing resistance near $118,500, with a break above $120,500 required for sustained bullish momentum, a threshold that may not be cleared within a single hour[3].
Methodology
We track Bitcoin Up or Down - July 20, 7AM ET 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
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 Kalshi vs Polymarket. 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 Kalshi vs Polymarket 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 - July 20, 7AM ET on Kalshi vs Polymarket
Live order book, 0% fees, USDC settlement in seconds.
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