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 price movement across a five-minute window on 25 May 2026 between 1:05pm and 1:10pm ET will determine this contract's outcome, with settlement anchored to Chainlink's BTC/USD oracle feed rather than spot exchange prices. The 0% crowd probability reflects the extreme difficulty of predicting intraday micro-movements; conditional token mechanics on Polygon mean traders are pricing near-zero conviction that BTC will close that five-minute candle higher than its open, despite Bitcoin's historical volatility making such swings routine at any given moment.
Five-minute Bitcoin price ranges typically oscillate between 0.1% and 0.5% in either direction during US market hours, making binary outcomes genuinely uncertain rather than predetermined. Historical precedent shows that ultra-short-window contracts on major assets rarely settle with meaningful conviction from the crowd—the 0% reading here signals rational scepticism about predictability rather than directional bearishness on Bitcoin itself. Comparable five-minute contracts on major forex pairs and equity indices have historically split outcomes near 50/50 once Polymarket liquidity forms.
Traders monitoring this contract should track scheduled announcements in the 24 hours prior: US economic data releases, Federal Reserve communications, or significant cryptocurrency exchange movements can create directional momentum that persists into the settlement window. Chainlink's BTC/USD feed aggregates multiple price sources, so any flash crash or temporary exchange-level volatility that doesn't reflect broader market consensus may not move the oracle. The USDC settlement on Polygon means execution costs are minimal, but the five-minute window remains fundamentally a volatility bet rather than a directional call on Bitcoin's trajectory.
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.
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
- 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.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in 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 25, 1:05PM-1:10PM ET on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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