Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi Fees) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Place a position → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Place a position → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Place a position → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Place a position → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Place a position → |
Market context
The market resolves on whether Bitcoin’s one-hour candle on 20 July 2026, starting at 3AM ET, closes above or opens at the Binance BTC/USDT pair. A 100% crowd-implied probability for “Up” suggests the open and close are effectively identical or the close is marginally higher, a pattern that typically emerges in low-volatility windows where algorithmic market-makers anchor price action.
Historically, hourly candles with near-100% “Up” probabilities on Binance occur during overnight UTC lulls when liquidity thins and spread compression dominates. Comparable cases from early 2025 show that such extremes rarely reverse unless a scheduled catalyst—such as a Fed statement or major exchange listing—triggers a volatility spike. In those instances, the probability collapses within minutes, but absent such events, the candle usually settles flat or slightly positive.
Traders should monitor the US economic calendar for any unexpected data releases between 2AM and 4AM ET, as these can disrupt the calm. Recent commentary from CoinDesk notes that Bitcoin’s 2026 price trajectory remains sensitive to macro liquidity shifts, with technical analysts watching the $64,600–$65,000 range for breakout confirmation [5]. Programmatically, this market is best approached by fetching the 1H candle’s open and close via Binance’s API at candle close, then comparing the values directly to resolve the outcome without subjective interpretation.
Methodology
We track Bitcoin Up or Down - July 20, 3AM 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
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
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 Fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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 Fees trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
Trade Bitcoin Up or Down - July 20, 3AM ET on Kalshi Fees
Live order book, 0% fees, USDC settlement in seconds.
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