What price will Bitcoin hit on May 28?

Platform comparison

Active sub-markets

Market context

Bitcoin's price action on 28 May 2026 will be determined by spot and futures markets across major exchanges including Coinbase, Kraken, and Binance, with settlement likely referencing a time-weighted average or closing price. The 0% crowd probability on Polymarket reflects either extreme confidence in a specific price range or minimal liquidity in this particular contract; by contrast, Kalshi's regulatory framework and KYC requirements often attract different trader demographics, whilst Betfair and Smarkets' decimal odds presentation can obscure tail-risk probabilities that appear stark in implied-probability formats. Fee structures diverge meaningfully here—Polymarket's 2% maker/taker model versus Kalshi's tiered approach will influence whether professional arbitrageurs find value in cross-platform hedging.

Historical Bitcoin price movements show annualised volatility between 40–80%, meaning a single day's swing of 5–15% is routine rather than exceptional. May 2021 saw a $10,000 intraday range; May 2022 experienced a $5,000 move amid broader market stress. The settlement window's 18-month horizon encompasses multiple potential catalysts: Federal Reserve policy shifts, major institutional adoption announcements, regulatory clarity from the SEC or CFTC, and macroeconomic shocks. Traders monitoring this contract should track Bitcoin's correlation with equity indices, spot ETF inflows (particularly post-approval), and any scheduled testimony or guidance from central banks or financial regulators that could shift risk sentiment in May 2026.

Methodology

This page compares What price will Bitcoin hit on May 28? 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 Polymarket Alternative, 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). Polymarket Alternative routes every trade directly into Polymarket's on-chain settlement, which is why payouts land fastest.

FAQ

Where can I trade this market with the lowest fees?

On Polymarket Alternative, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket Alternative 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's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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.