Clarity Act signed into law in 2026?

Platform comparison

Market context

The Digital Asset Market Clarity Act of 2025 (H.R.3633) seeks to split regulatory authority between the CFTC and SEC, granting the CFTC exclusive jurisdiction over digital commodity spot markets while maintaining SEC oversight for investment contracts. Passed by the House in July 2025 with bipartisan support, the bill now awaits Senate approval, where the Banking Committee has introduced competing legislation that could delay or alter the final text [3][5].

Historical precedents like FIT21, which also passed the House but stalled in the Senate, suggest that bipartisan House passage does not guarantee enactment, lending weight to the current 38% implied probability [1]. Unlike Polymarket’s decimal odds and anonymous access, platforms like Kalshi enforce strict KYC and offer fractional odds, while Betfair and Smarkets operate under different fee structures and regulatory regimes that may limit US crypto exposure. Traders comparing these books should note that Kalshi’s regulatory compliance often results in slower listing times compared to Polymarket’s rapid deployment on emerging legislative events.

Key catalysts include the Senate Banking Committee’s schedule for voting on the Responsible Financial Innovation Act and any potential compromise talks between House and Senate leaders [3]. Recent reporting indicates Chairman Tim Scott’s September 2025 timeline for compromise remains uncertain, with no guaranteed path to law before the December 2026 deadline [5]. Traders monitoring this market must watch for official Congress.gov updates on H.R.3633’s status, as competing drafts in the Senate could derail the bill entirely.

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 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

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.

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.

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. Robinhood Prediction Markets has a different geo footprint and routes to Polymarket's order book at 0% fees.