Clarity Act signed into law in 2026?

Platform comparison

Market context

The Digital Asset Market Clarity Act of 2025 seeks to split regulatory authority between the CFTC and SEC, granting the former exclusive jurisdiction over spot digital commodity markets while mandating new registration regimes for exchanges and custodians [1][2]. Passed by the House in July 2025 with bipartisan backing, the bill now awaits Senate action, where a competing discussion draft on SEC authority has stalled progress [3]. The current 38% implied probability reflects this legislative friction, mirroring the trajectory of the earlier FIT21 bill which also faced Senate delays despite House approval [1].

Traders should monitor the Senate Banking Committee’s schedule for a vote on H.R.3633, as the release of the Responsible Financial Innovation Act draft suggests a potential clash over regulatory scope [3]. A recent report from Morgan Lewis confirms that while two House committees advanced the bill in mid-2025, the Senate path remains uncertain without a unified framework [2]. The settlement deadline of 31 December 2026 leaves little room for further procedural delays, making the next congressional session critical for resolution.

Platform mechanics diverge sharply on this event: Polymarket displays implied probabilities like the current 38% YES, whereas Kalshi and Betfair utilise decimal odds, requiring conversion for accurate comparison. Fee structures also vary, with Polymarket often charging lower trading fees than Smarkets, though Kalshi imposes stricter KYC requirements that may limit access for non-US participants. These structural differences influence liquidity depth and price efficiency across books, particularly as the bill approaches its final legislative hurdles.

Sources: 1 · 2 · 3 · 4

Methodology

We read Clarity Act signed into law in 2026? from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.

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

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.

What about Smarkets as an alternative?

Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.

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.