Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on PolyGram → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on PolyGram → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on PolyGram → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on PolyGram → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on PolyGram.
Market context
Bitcoin’s 5pm ET 1-hour Binance candle on 22 May will settle Up only if the close is at or above the open, so the relevant comparison is between two intraday prints rather than the day’s direction. The market is currently priced at 0% YES, which implies the crowd sees the candle opening flat-to-lower versus its close, but that can simply reflect thin liquidity or stale quoting on some venues rather than a strong directional view. On comparable crypto hourly markets, small moves around a reference point often trade with much less certainty than the headline spot price suggests, because the settlement rule is mechanical and can hinge on a brief spike within the hour.
Recent context points to Bitcoin having spent much of 19–22 May in the mid-$70,000s to high-$77,000s, after Fortune reported BTC at $76,565.02 on 19 May and Octagon AI described trading around $76,800-$77,120 that morning. Robinhood prediction contracts for nearby BTC timestamps have also clustered around levels such as $76,800, $77,000 and $77,700, which is consistent with a market that has been range-bound rather than trending cleanly. By contrast, outright spot venues and prediction books do not price this identically: Kalshi-style markets quote as implied probabilities, while Betfair and Smarkets show decimal odds and usually tighter spreads only where liquidity is deep; fees, custody rules and KYC access can also differ materially across platforms.
For the final print, watch Binance’s own BTC/USDT tape into the 5pm ET hour, plus any shift in U.S. risk sentiment, ETF flow headlines, or macro data that can change the last few minutes of the candle. Octagon AI’s 19 May note pointed to geopolitical tension, bond yields and spot ETF outflows as the main bearish drivers, and those same factors still matter because they can move BTC quickly enough to flip a marginal hourly close. If Binance trades fractionally above the open at the candle’s end, the market resolves Up regardless of broader intraday losses; if it closes one tick lower, it resolves Down.
Methodology
We read Bitcoin Up or Down - May 22, 5PM ET from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live quote comes directly from the Polygon order book; the other three are listed with their platform attributes — fees, KYC, settlement currency, payment options — because a 1:1 contract comparison without API access would be guesswork.
Resolution & payout
Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.
Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.
FAQ
- Is this market available outside the US?
- PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.
- 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 does it cost to trade on PolyGram?
- Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- 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.
- 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 - May 22, 5PM ET on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
Trade on PolyGram →