What price will Bitcoin hit in May?

Platform comparison

Active sub-markets

Market context

Bitcoin is trading near the high-$70,000s as May enters its final stretch, so this market is effectively asking whether it can print a higher intramonth level before the month ends. The crowd-implied 0% YES price looks out of step with a market that has already seen multiple forecasts clustering around the upper $70,000s to low $80,000s this month: CoinCodex has Bitcoin around $77,552 on 20 May and $83,691 by 25 May, while Changelly’s May band runs from roughly $77,288 to $83,929. That gap matters on platform choice. Polymarket typically expresses the view directly as an implied probability, while Kalshi and Betfair style pricing can be read through dollars or decimal odds; Smarkets adds commission on winnings, which can make near-dated upside look less attractive than the headline quote suggests.

For traders comparing books, the main drivers are the same but the access and costs are not. Price is likely to be driven by spot ETF flow, macro data, and any late-month volatility around Federal Reserve speakers or US economic releases, with Bitcoin also sensitive to options expiry and thin holiday liquidity. Recent forecast pages from Kraken and Binance both point to modest upside over the next few days, though these are model outputs rather than market prices. Polymarket is usually the quickest venue for pure probability expression, but KYC reach is narrower than regulated books; Kalshi is US-regulated with straightforward settlement mechanics, whereas Betfair and Smarkets can be better for exact-price or range-style views where decimal pricing and commission matter more than a binary yes/no.

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Methodology

This page compares What price will Bitcoin hit in May? 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

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.

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.