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What price will Bitcoin hit on July 31?

Polymarket vs Kalshi vs Betfair vs Smarkets for "What price will Bitcoin hit on July 31?" — live odds, fees and KYC side-by-side.

↓ 64,000 100% ↓ 63,000 100% ↓ 62,000 15% ↑ 65,000 2% Volume: $96K Liquidity: $121K Closes: 1 Aug 2026
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What price will Bitcoin hit on July 31?

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Robinhood Prediction Markets) Pick
polygram.ink (preferred broker)
100% 0% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Go to the live market →
Polymarket (direct)
polymarket.com
100% 0% 0% Geo-blocked in US/UK/EU USDC, on-chain Go to the live market →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD Go to the live market →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR Go to the live market →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) Go to the live market →

Outcome probabilities

Current market-implied probability for each outcome, from the live order book.

OutcomeProbability
↓ 64,000100%
↓ 63,000100%
↓ 62,00015%
↑ 65,0002%
↓ 61,0002%
↑ 67,0001%
↑ 66,0001%
↑ 72,0000%
↑ 71,0000%
↑ 70,0000%
↑ 69,0000%
↑ 68,0000%
↓ 60,0000%
↓ 59,0000%
↓ 58,0000%
↓ 57,0000%

Market context

Bitcoin is trading into a scheduled July 31 settlement at a level that leaves the market highly sensitive to whether the price holds above the next round-number band or slips back below it. On Polymarket, the contract is quoted in outcome ranges with crowd-implied probabilities, while Robinhood’s event page shows fixed-price thresholds in cents, so the two books are not directly comparable even when they reference the same spot move; on the current Robinhood market, $64,000 or above was 53¢ and $64,500 or above 45¢, whereas Polymarket’s nearby buckets were concentrated around 62,000-66,000 dollars.[8][9]

The broader frame is that July Bitcoin forecasts have clustered around the low-to-mid-$60,000s rather than the kind of breakout needed to make very high strikes routine. Recent prediction pieces have put month-end expectations around $60,013 to $62,590, with the most bullish model outputs nearer $65,800-$66,500 and bearish ones down in the $53,000-$56,000 area, which helps explain why out-of-the-money levels can look expensive on a fee-free display but thinner once spread and settlement rules are considered.[1][2][7] A 0% yes price on a specific strike or band usually means the market sees that finish as extremely unlikely, not impossible.

Traders are mainly watching late-session crypto liquidity, any macro surprise before the close, and whether Bitcoin can stay above the nearby resistance levels that recent commentary has flagged around $63,800-$64,000.[7][9] If the final print comes from a live spot reference near the settlement window, small moves in the last hour can matter more than earlier intraday swings, especially on markets where one venue quotes implied probability and another quotes decimal-style prices with different fees and KYC access. Polymarket’s BTC July 31 page shows a range-based market structure, while Robinhood’s thresholds are simpler to read but only available to users inside its supported jurisdictions and account framework.[8][9]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares What price will Bitcoin hit on July 31? 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 Robinhood Prediction Markets, 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.
Which platform has the deepest liquidity?
Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.
Which platform is accessible globally?
Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Robinhood Prediction Markets 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. Robinhood Prediction Markets 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.
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