Bitcoin price on August 15?

Platform comparison

Market context

Polymarket is pricing this contract at 0% YES, so the market is treating a noon ET BTC/USDT Binance close in the target range as not happening. For a Polymarket user, the trade sits on USDC collateral on Polygon, with conditional tokens settling strictly against Binance’s 1-minute candle close at 12:00 ET, so the only number that matters is that specific timestamp and source.

That 0% print is far more extreme than recent spot conditions would usually justify. Binance showed Bitcoin above 65,000 USDT earlier in August, but by 14 August the live BTC price had eased to roughly 62,872 USDT on Binance US, while U.S. spot Bitcoin ETFs still logged a strong run of inflows, including a reported $853.54 million net for the week ended 7 August and a five-session inflow streak into mid-August[11][4][7]. In comparable cases, Polygon-settled crypto ranges have tended to reprice quickly around ETF flow data, because the market is effectively voting on whether momentum persists into a very narrow settlement window rather than on Bitcoin’s broader trend[3][12].

For the rest of today, traders will watch Binance spot direction, ETF flow updates, and any macro headlines that could move risk assets before the 16:00 UTC settlement cut-off. Recent coverage has pointed to a steady bid from U.S. spot Bitcoin funds, with BlackRock’s IBIT taking a large share of inflows and the wider cohort posting one of its best weeks since April[1][3][4]. That leaves the key dependency as simple price action: if BTC drifts, the noon ET candle can still settle below a nearby bracket even after a strong overnight tape, which is exactly where these conditional-token markets tend to surprise.

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 Polymarket Scam?, 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.

UK Frequently Asked Questions

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 Polymarket Scam?. 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.

Is Polymarket legal in the UK?

Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.

Do I pay tax on prediction market profits in the UK?

UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.

How do I deposit on Polymarket from the UK?

UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.