Bitcoin above … on August 10?

Platform comparison

Market context

Bitcoin needs to print above the market’s strike level on Binance’s 12:00 ET one-minute close to settle **Yes**; with the crowd already pricing **100% Yes**, the current contract is effectively treating that outcome as certain. The key platform comparison is that Polymarket shows a direct yes/no probability, while Kalshi, Betfair and Smarkets usually express the same view through decimal odds or exchange prices, which makes fee drag and the bid-offer spread more visible than on a simple probability display.

Comparable August forecasts are mixed but generally cluster well below the very top end of Bitcoin’s recent range. CoinCodex’s August 10 model sits near **$67,648**, Changelly’s near **$69,722**, and Longforecast’s August close estimate is **$65,068**, while Yahoo Finance’s August view notes a bearish technical structure with downside targets into the low $60,000s and below.[3][1][16][2] Those forecasts frame this market as a question of whether Bitcoin can stay elevated into a single midday Binance print, rather than whether it can rally over a full day or week.

The near-term catalysts are macro data and ETF flow headlines, especially U.S. inflation and labour releases that can shift rate-cut expectations, plus any fresh commentary around Bitcoin ETF inflows or outflows.[11][6][2] One note from recent coverage is that August trading often thins out, which can make a noon ET candle more sensitive to brief moves than end-of-day pricing on other venues.[11] For platform choice, KYC and access also differ: Kalshi is U.S.-regulated, Betfair and Smarkets are exchange-style books with wider geographic reach, and fee treatment varies enough that a small edge in implied probability can vanish once commission or spread is included.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Bitcoin above … on August 10? specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Robinhood Prediction Markets, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.

FAQ

What does Polymarket cost vs Kalshi?

Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.

What about Smarkets as an alternative?

Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.

Which platform is accessible globally?

Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Robinhood Prediction Markets has a different geo footprint and routes to Polymarket's order book at 0% fees.

Are all these platforms regulated?

No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.

Which platform supports Klarna/SOFORT?

Directly: none. Polymarket accepts only USDC on Polygon. Robinhood Prediction Markets offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.