Bitcoin above ___ on May 13?

Platform comparison

Market context

This market concerns Bitcoin's noon ET closing price on 13 May 2026 against a specified threshold on Binance's BTC/USDT pair. The settlement hinges on a single one-minute candle at 12:00 ET, making this a precise intraday price test rather than a daily close. The 100% implied probability suggests traders view the threshold as substantially below expected Bitcoin valuations by that date, though the specific price level remains unstated in the market title.

Historical precedent shows that single-minute candle markets on major exchanges exhibit lower volatility than daily closes, reducing the likelihood of flash crashes or wicks that could trigger unexpected resolutions. Bitcoin's typical intraday range on Binance averages 1–3% during US trading hours, meaning noon ET prices rarely deviate sharply from the broader daily trend. Markets pricing such narrow technical outcomes at near-certainty typically reflect confidence in baseline price direction rather than precision timing.

Traders should monitor Bitcoin's macroeconomic catalysts through May 2026, including US Federal Reserve policy signals and institutional adoption announcements, which drive sustained price movements. Binance's operational status and any scheduled maintenance windows near the settlement time warrant attention, as technical issues could affect candle data integrity. The divergence between platforms matters here: Polymarket's decimal odds format and Kalshi's regulatory constraints in the US create different liquidity pools for this specific Binance-dependent contract, whilst Betfair and Smarkets' traditional betting interfaces appeal to different trader demographics, potentially explaining any odds variations across books.

Methodology

This page compares Bitcoin above ___ on May 13? 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 PolyGram, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

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. PolyGram 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. PolyGram 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.