Clarity Act signed into law in 2026?

Platform comparison

Market context

The Digital Asset Market Clarity Act of 2025 (H.R.3633) passed the House with bipartisan support on 17 July 2025 but now faces an uncertain path in the Senate, where a competing discussion draft on SEC authority has emerged [3][4]. The 39% implied probability on Polymarket reflects this legislative friction, contrasting with Kalshi’s decimal odds format which would display 0.39, and differing from Betfair’s fee structure which often includes higher take-rates than Polymarket’s zero-fee model for this asset class.

Historically, similar market-structure bills like FIT21 passed the House in 2024 but stalled in the Senate before eventual compromise, suggesting a precedent for delayed but possible enactment [1]. This pattern mirrors how Smarkets’ lower fee structure attracts traders betting on long-dated legislative outcomes, whereas Kalshi’s strict KYC requirements may limit participation from non-US traders who dominate Polymarket’s liquidity on this specific bill.

Traders should monitor the Senate Banking Committee’s schedule for a vote on H.R.3633 and any announcements regarding the integration of the Responsible Financial Innovation Act of 2025 draft [4]. Recent reporting indicates the Senate has not yet scheduled a hearing, creating a critical dependency on committee leadership before the December 2026 signing deadline [4]. Divergence between platforms remains notable: Polymarket’s implied probability allows anonymous trading, while Kalshi requires full identity verification, altering the risk profile for institutional versus retail participants betting on this timeline.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Clarity Act signed into law in 2026? 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 Kalshi Alternative UK, 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). On-chain settlement clears in minutes — the fastest payout path of the four.

FAQ

Polymarket vs Kalshi — which is better?

Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.

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.

Is Betfair a Polymarket alternative?

Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.

Which platform is accessible globally?

Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Kalshi Alternative UK 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.