Bitcoin Up or Down on August 3?

Platform comparison

Market context

Bitcoin’s price at the two Binance noon candles on 2 and 3 August decides the contract: if the later close is higher, the market resolves to **Up**; if it is lower, it resolves to **Down**. In prediction-market terms, a **YES** share pays out if that outcome happens, while a **NO** share pays out if it does not.

The current crowd-implied probability of 21% for YES suggests traders see a modest chance of Bitcoin finishing the second noon snapshot above the first. That fits a market that has been trading in a broad, choppy range rather than trending cleanly in one direction: recent price references around the low- to mid-$60,000s show Bitcoin still well below last year’s highs, with short-term swings larger than the daily move implied by many markets.[2][12][13] For context, August has often been a difficult month for Bitcoin historically, and recent commentary has flagged weak seasonality and the importance of whether BTC can hold key support around the $60,000 area.[3][14]

For the next day or so, traders will mainly watch spot price momentum, ETF flow headlines, and any macro surprises that hit risk assets broadly, because those can shift Bitcoin intraday without warning.[14] The market’s exact settlement rule also matters: Binance’s specific candle closes at noon ET are what count, so moves before the close matter more than what happens later in the afternoon. If BTC is range-bound into the two settlement points, the outcome may hinge on a comparatively small price difference, which is why even a low probability can still reflect a live, tradable path.[6][11]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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.

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 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.

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.