Bitcoin above 2026 on May 18?

Platform comparison

Active sub-markets

Market context

Bitcoin finished 17 May around $78,135 on Statista’s daily series, with Fortune putting it at $77,347.59 at 9:30 a.m. Eastern on 18 May, so the noon Binance candle for that day has been trading close to the mid-$70,000s rather than at an extreme. Against that backdrop, a “100% yes” crowd price usually reflects either a very low strike or a stale book rather than certainty: on Kalshi, the same event would typically be quoted in cents and can move more transparently with the underlying, while Betfair and Smarkets would show decimal odds and take commission rather than embedding it in the spread. Accessibility also differs, with Binance data being the settlement source here, not a cash index or another venue’s spot print, so cross-market comparison needs care.

The main catalysts are intraday crypto flows rather than a scheduled macro release, because this market settles on Binance’s 12:00 ET one-minute close, which can diverge from Coinbase, CF Benchmarks, or broader market prints around the same time. Traders will watch US equity hours, ETF-related flows, any headline on regulation or exchange action, and the usual weekend-to-Monday gap effects on liquidity. Fortune’s recent coverage showed Bitcoin still trading in a volatile band, at $80,860.97 on 12 May and $77,347.59 on 18 May, which suggests the relevant question is less the broader trend than whether Binance’s noon candle prints above the threshold after any sharp move or thin-book spike.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Bitcoin above 2026 on May 18? specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. Live odds come from the Polymarket order book; the other venues' contract details are maintained manually because their APIs aren't directly comparable. Every CTA routes to PolyGram, 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). PolyGram routes every trade directly into Polymarket's on-chain settlement, which is why payouts land fastest.

FAQ

Is this market available outside the US?

PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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 it cost to trade on PolyGram?

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

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.