Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Legit?) Pick polygram.ink (preferred broker) |
61% | 39% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
61% | 39% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| June 30, 2027 | 61% |
| December 31 | 43% |
| September 30 | 33% |
| July 15 | 23% |
| February 28 | 0% |
| March 31 | 0% |
Market context
Samuel Alito, the 76-year-old Associate Justice of the US Supreme Court, has not announced any intention to retire, and sources close to him confirm he is not planning to step down this year[1]. This real-world silence underpins the current Polymarket price of 0% YES for the contract asking if he will announce retirement by the end of 2026, a figure that reflects the on-chain consensus built through USDC liquidity on the Polygon network and the pricing of conditional tokens.
Historically, retirement announcements from senior justices are rare and often tied to specific political or personal catalysts rather than age alone. Sandra Day O’Connor, who retired in 2005 at 72, was the last conservative justice to leave voluntarily, and her decision was influenced by a desire to avoid a contentious confirmation battle[4]. In contrast, Alito and Clarence Thomas, both in their mid-70s, have given no public indication of leaving their lifetime posts, despite intensifying speculation about potential retirements before the midterms[6].
Traders should monitor official announcements from Alito, the Supreme Court’s term schedule, and any health-related developments, as these are the primary catalysts for a “Yes” resolution. Recent reports note that Alito’s upcoming book release in October 2026 and recent health attention may influence public discourse, though no retirement has been officially announced[3]. The White House is reportedly exerting pressure on the Court’s oldest justices to retire, but this remains unconfirmed and does not yet alter the market’s 0% pricing[8].
Methodology
This page reviews Will Samuel Alito announce his retirement by 2026? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Legit?, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
FAQ
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Legit?. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Legit? trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
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