Bitcoin Up or Down - July 10, 4:15AM-4:20AM ET

Platform comparison

Market context

The real-world event is a five-minute snapshot of Bitcoin’s price, measured by Chainlink’s BTC/USD data stream, to see if it ends higher or lower than it began. In this market, a YES share pays out if the price finishes “Up” (greater than or equal to the start), while a NO share pays out if it finishes “Down”. The crowd currently assigns a 100% probability to “YES”, implying traders expect the price to rise over the July 10 window.

Recent comparable cases show how extreme probabilities can mislead. On Polymarket, similar five-minute Bitcoin markets on July 8 and July 9 both had 100% implied probability for “Down”, yet both resolved to “Down” as expected[2][3]. However, short-term crypto markets are notoriously volatile, and a 100% probability often reflects overconfidence rather than certainty. Traders should treat such extremes as signals to watch for sudden shifts, not guarantees.

Key catalysts include US-Iran geopolitical tensions, which have recently pushed Bitcoin above $60,000 amid renewed hostilities[5]. Traders should monitor Chainlink’s live BTC/USD stream for abrupt moves, as resolution depends solely on this data source, not spot markets[9]. Any unexpected macro news or oracle delay could flip the outcome, making the 100% probability a fragile anchor rather than a solid fact.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Prediction Market UK, which mirrors the Polymarket order book directly.

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 Prediction Market UK. 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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Prediction Market UK 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.