What price will Bitcoin hit in May?

Platform comparison

Active sub-markets

Market context

Bitcoin is trading in the high-$70,000s, and the market settles on the highest price reached before the end of May. With the current crowd-implied probability at 0% for a yes outcome, the pricing implies traders do not see a fresh upside spike as likely in the remaining days of the month. That is consistent with the recent range: CoinCodex put BTC at about $78,717 on 21 May, with a weekly band of roughly $78,268 to $84,646, while Changelly’s May forecast centred around $80,968 and Kraken’s 22 May estimate sat near $77,676. Those reference points suggest the market is already close to the levels most forecasters expected for late May, so the key question is whether Bitcoin can break above the next round-number resistance before month-end.

For comparable context, Polymarket’s separate 2026 and May contracts show the crowd clustering around round figures, with 80,000 and 90,000 featured as the leading outcomes rather than much higher levels. That matters because this market is about the month’s peak, not the closing price: a brief wick above a threshold is enough to settle YES. Recent price-prediction services generally imply modest near-term gains rather than a sharp breakout, which helps explain why the market can sit at 0% even while BTC holds above $77,000.

Traders should watch spot flows, ETF headlines and any sharp move in risk assets over the final stretch of May, because a single impulsive session can change the month’s high. Binance’s published model showed only limited day-to-day drift into late May, but wider June ranges from Binance and Changelly point to larger upside only if momentum carries beyond month-end. Any sudden macro catalyst, exchange-related news or large liquidations could still push BTC through the current band before the settlement window closes on 1 June at 04:00 UTC.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track What price will Bitcoin hit in May? on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

On PolyGram, 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?

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'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.

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.