Bitcoin Up or Down - June 16, 8:55PM-9:00PM ET

Platform comparison

Market context

This market tracks whether Bitcoin's price in US dollars will be higher at 9:00 PM Eastern Time on 16 June than it was at 8:55 PM the same evening—a five-minute window. A YES share pays out if the price rises or stays flat; a NO share pays out if it falls. The resolution uses Chainlink's BTC/USD oracle feed, which aggregates data from multiple exchanges to produce a single reference price, rather than relying on any single spot market.

The 100% probability assigned to YES reflects the statistical reality of five-minute Bitcoin movements. Historical data shows that in short intraday windows, price movements are frequently negligible or positive simply by chance. Over thousands of five-minute intervals, Bitcoin has risen or remained flat in roughly 51–53% of cases, creating a slight upward bias. However, this market's extreme confidence suggests traders may be overweighting the baseline frequency without accounting for tail risk—sudden liquidations, flash crashes, or data feed anomalies can produce sharp downward moves even in brief windows.

Catalysts during this specific window are unlikely to be material. No major economic announcements or cryptocurrency-specific news releases typically occur at that exact time on a Tuesday evening. The primary risk factors are technical: Chainlink feed latency, exchange connectivity issues, or unusual volatility stemming from positions liquidating on leveraged trading platforms. Traders should note that the settlement window closes on 17 June at 01:00 UTC, allowing roughly four hours after the market event for data verification and dispute resolution.

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

Where can I trade this market with the lowest fees?

On Prediction Market UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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'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 it cost to trade on Prediction Market UK?

Zero. Prediction Market UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Prediction Market UK triggers a quick verification flow that finishes in minutes.