Probability
How the price has moved
The contract opened on 29 July 2026 at 98%, implying the market initially treated an Alito retirement as almost certain. It then fell sharply, with the recorded range since then spanning 88% to 98%, even though the current consensus sits far below that band at 13%. That pattern points to a fast correction that happened early, likely within the first day, after which the price found a much lower level. The last 24 hours show a change of only 0.1 percentage points, meaning the market has been essentially flat since settling near its current level. No single publicly reported event explains the initial 98% price or the subsequent drop; the move follows no confirmed trigger in the available record.
Analysis
Context
Samuel Alito has served on the Supreme Court since 2006, when he was appointed by President George W. Bush. He is part of the court's conservative majority and, at 76, is among its older members. Speculation about his retirement recurs periodically, largely because sitting justices who lean toward one party often prefer to step down while a like-minded president can nominate and a friendly Senate can confirm their successor.
That dynamic has precedent. Justice Anthony Kennedy retired in 2018 during Donald Trump's first term, allowing Trump to appoint Brett Kavanaugh. Justice Stephen Breyer retired in 2022 under pressure from Democrats who wanted President Biden to fill the seat while the Senate was still Democratic-controlled. Those cases are the template for why any hint of a conservative justice retiring during a Republican administration draws immediate attention.
This contract, tracked on Kalshi since 29 July 2026, asks whether Alito will officially retire before 1 January 2027. No public statement from Alito or the Court has confirmed any retirement plan as of the time this page was written.
The most striking thing about this market is its trajectory rather than its current level. When it was first recorded on 29 July 2026, the price stood at 98%, implying near-certainty that Alito would retire before the end of the year. Within the recorded range since then, the price has touched as low as 88% and as high as 98%, but the consensus figure now sits far below that range, at 13%. That gap between the stated range and the current level suggests the bulk of the repricing happened fast, likely within the first day of trading, before the market found a level it has since held.
The last 24 hours show almost no movement, a change of just 0.1 percentage points. Read alongside a starting price near certainty, that flatness is telling: it means the market has stopped reacting and settled into a low-probability view rather than remaining volatile. A market that swings wildly from 98% to roughly 13% and then flattens is one that made a fast correction and now considers the question largely resolved in the negative, absent new information.
All recorded volume, $264,768 across 58 price observations, sits on a single venue, Kalshi. That concentration means there is no cross-venue spread to check the price against, so the number reflects the views of whoever is actively trading this specific contract rather than a broader consensus. Structurally, the question also has a hard constraint working against a yes outcome: the Supreme Court's traditional pattern is for retirement announcements to come at the end of a term, typically in June or July, timed to give a president and Senate the summer to process a nomination before the next term opens in October. That window for 2026 has already passed without an announcement, which cuts against a retirement materializing in the closing months of the year covered by this contract.
What moves the probability
End-of-term timing has passed
Justices who plan to retire almost always announce at the close of the Court's term, in June or July, to give time for a nomination and confirmation before the next term starts in October. That window for 2026 closed without an Alito announcement, which weighs heavily against a retirement in the remaining months before 1 January 2027.
No public statement on record
Settlement requires an actual statement from Alito or the Court, corroborated by major outlets. As of now no such statement exists, and the absence of one after the term's traditional announcement window is the single biggest reason the price sits low.
Political incentive still exists
A Republican president currently sits in the White House, which is exactly the condition under which a conservative-leaning justice like Kennedy chose to retire in 2018. That incentive has not disappeared, and it is the main reason the probability is not near zero.
Midterm elections in November 2026
Control of the Senate after the midterms could affect how easily a nominee gets confirmed. If Republicans expect to lose Senate seats, that could push any retirement decision earlier rather than later, though no evidence yet points to this happening before the settlement date.
The case for
- Alito would need to issue, or the Court would need to confirm, an official retirement statement before 1 January 2027.
- A Republican-controlled Senate currently makes confirmation of a like-minded successor easier, which is the same condition that preceded Kennedy's 2018 retirement.
- Concern about Senate control shifting after the November 2026 midterms could push a retirement decision forward rather than delay it.
The case against
- The Court's traditional retirement announcements come at the end of its term in June or July, and that window for 2026 has already passed without any statement from Alito.
- No reporting from Politico, Reuters, the Associated Press, the New York Times, the Wall Street Journal or the Washington Post has indicated an imminent retirement.
- The market's own pricing history shows a sharp reversal from near-certainty to a low level within its first day of trading, consistent with an initial overreaction rather than a real signal of retirement plans.