# Which CEOs will be out before 2027: a leadership announcement versus its effective date An executive transition can be announced before it takes effect. This contract can therefore settle on a formal announcement while the person still occupies the office. Canonical article: https://www.homeincomelab.com/stories/which-ceos-will-be-out-before-2027 Publisher: The Outlook By: The Outlook editorial desk Category: Technology Analysis as of: 2026-10-04T10:28:12.452998Z Decision guide market prices observed: 2026-10-04T09:57:48.323Z Published: 2026-10-04T10:28:12.452998Z ## Quick answer “Brian Armstrong - Coinbase” was quoted at 6.5% on October 4, 2026 at 09:57 UTC. An executive transition can be announced before it takes effect. The linked rules decide the result; this dated quote is not confirmation. [1](https://polymarket.com/event/which-ceos-will-be-out-before-2027) ## Key takeaways - Brian Armstrong - Coinbase: 6.5% in the dated research snapshot. [1](https://polymarket.com/event/which-ceos-will-be-out-before-2027) - An executive transition can be announced before it takes effect. This contract can therefore settle on a formal announcement while the person still occupies the office. - Match the announcement and office to the contract; a predicted management change is not an established departure. ## Which CEOs will be out before 2027: the question behind the price An executive transition can be announced before it takes effect. This contract can therefore settle on a formal announcement while the person still occupies the office. In the snapshot checked October 4, 2026 at 09:57 UTC, the focus outcome, Brian Armstrong - Coinbase, was quoted at 6.5%. [1](https://polymarket.com/event/which-ceos-will-be-out-before-2027) Official filings document corporate actions. [3](https://www.sec.gov/edgar/search/) A board may announce succession while the incumbent remains through a handover. Our interpretation is that this timing gap matters because a contract can settle on the announcement even though day-to-day management has not yet changed. ## The formal transition can precede departure Covers the named CEO ceasing to serve for any length of time during the written window ending December 31, 2026 at 11:59 p.m. ET. An announced resignation or firing qualifies immediately even if its effective date is later. [2](https://polymarket.com/event/which-ceos-will-be-out-before-2027/brian-armstrong-out-as-coinbase-ceo-before-2027) The practical implication for Brian Armstrong - Coinbase is to distinguish necessary conditions from supporting clues. A plausible explanation can help identify what to investigate, but the outcome still turns on evidence satisfying the specified test. Match the announcement and office to the contract; a predicted management change is not an established departure. ## What the other prices and the trading record reveal The comparison with Andy Jassy - Amazon, quoted at 5.15%, gives a 1.35-percentage-point spread against Brian Armstrong - Coinbase. That is a difference in quoted expectations, not a measured performance margin. Before treating the outcomes as a complete probability distribution, check whether they are mutually exclusive and whether a None, Other or fallback outcome is included. [1](https://polymarket.com/event/which-ceos-will-be-out-before-2027) This event recorded $717,146 in cumulative turnover across its life. The captured record contains 5 eligible open constituent contracts. Those are the scope of this snapshot, not a count of independent forecasters. [1](https://polymarket.com/event/which-ceos-will-be-out-before-2027) ## The next evidence that would change the assessment For this event, watch the company or board’s official leadership announcement; the exact CEO role and departure wording; the announcement date, distinct from the handover date. [2](https://polymarket.com/event/which-ceos-will-be-out-before-2027/brian-armstrong-out-as-coinbase-ceo-before-2027) The next meaningful update is evidence about the required milestone or measurement. A changed quote by itself does not identify what happened or why. A qualifying departure or formal resignation/firing announcement for the selected CEO within the window would support Yes. Speculation, a narrower change in duties or an announcement outside the window could fail the condition. ## A fact worth knowing The open conditions in this snapshot span 2.6% to 6.5%. That 3.90-percentage-point range compares different contract conditions; it is not a confidence interval for one prediction. Source: [Polymarket: Which CEOs will be out before 2027? — observed event and constituent prices](https://polymarket.com/event/which-ceos-will-be-out-before-2027) ## Weighing the outcome ### Outcome in focus Brian Armstrong out as Coinbase CEO before 2027? ### Supporting case A qualifying departure or formal resignation/firing announcement for the selected CEO within the window would support Yes. [2](https://polymarket.com/event/which-ceos-will-be-out-before-2027/brian-armstrong-out-as-coinbase-ceo-before-2027) ### Challenging case Speculation, a narrower change in duties or an announcement outside the window could fail the condition. [2](https://polymarket.com/event/which-ceos-will-be-out-before-2027/brian-armstrong-out-as-coinbase-ceo-before-2027) ### What to watch - The company or board’s official leadership announcement. [2](https://polymarket.com/event/which-ceos-will-be-out-before-2027/brian-armstrong-out-as-coinbase-ceo-before-2027) - The exact CEO role and departure wording. [2](https://polymarket.com/event/which-ceos-will-be-out-before-2027/brian-armstrong-out-as-coinbase-ceo-before-2027) - The announcement date, distinct from the handover date. [2](https://polymarket.com/event/which-ceos-will-be-out-before-2027/brian-armstrong-out-as-coinbase-ceo-before-2027) ### What may already be priced in The observed 6.5% quote is the captured market expectation for Brian Armstrong - Coinbase. Publicly known conditions alone do not establish that this price is too high or too low. [1](https://polymarket.com/event/which-ceos-will-be-out-before-2027) ### Assessment Match the announcement and office to the contract; a predicted management change is not an established departure. ## How the market resolves Covers the named CEO ceasing to serve for any length of time during the written window ending December 31, 2026 at 11:59 p.m. ET. An announced resignation or firing qualifies immediately even if its effective date is later. [2](https://polymarket.com/event/which-ceos-will-be-out-before-2027/brian-armstrong-out-as-coinbase-ceo-before-2027) ## Timing and deadline The focus contract uses December 31, 2026, at 11:59 p.m. US Eastern time. [2](https://polymarket.com/event/which-ceos-will-be-out-before-2027/brian-armstrong-out-as-coinbase-ceo-before-2027) ## Questions and answers ### Which CEOs will be out before 2027? The selected condition, Brian Armstrong - Coinbase, was priced at 6.5% when checked October 4, 2026 at 09:57 UTC. An executive transition can be announced before it takes effect. This contract can therefore settle on a formal announcement while the person still occupies the office. [1](https://polymarket.com/event/which-ceos-will-be-out-before-2027) ### What evidence would be decisive for this particular outcome? The key observations are the company or board’s official leadership announcement; the exact CEO role and departure wording; the announcement date, distinct from the handover date. The full linked contract governs exceptions. [2](https://polymarket.com/event/which-ceos-will-be-out-before-2027/brian-armstrong-out-as-coinbase-ceo-before-2027) ### Does this market price prove the event will happen? No. 6.5% describes the quoted focus condition in a dated snapshot. It is not a verified forecast, an official result or evidence that all participants independently evaluated the same information. [1](https://polymarket.com/event/which-ceos-will-be-out-before-2027) ## Related market contracts - [Brian Armstrong out as Coinbase CEO before 2027?](https://polymarket.com/event/which-ceos-will-be-out-before-2027/brian-armstrong-out-as-coinbase-ceo-before-2027) - [Andy Jassy out as Amazon CEO before 2027?](https://polymarket.com/event/which-ceos-will-be-out-before-2027/andy-jassy-out-as-amazon-ceo-before-2027) - [Sundar Pichai out as Google CEO before 2027?](https://polymarket.com/event/which-ceos-will-be-out-before-2027/sundar-pichai-out-as-google-ceo-before-2027) ## Market source [View the event on Polymarket](https://polymarket.com/event/which-ceos-will-be-out-before-2027) For timestamped market prices, see the canonical HTML article. Prices can change independently of this analysis. ## Sources and further reading 1. [Polymarket: Which CEOs will be out before 2027? — observed event and constituent prices](https://polymarket.com/event/which-ceos-will-be-out-before-2027) 2. [Polymarket: Brian Armstrong out as Coinbase CEO before 2027? — exact resolution rules](https://polymarket.com/event/which-ceos-will-be-out-before-2027/brian-armstrong-out-as-coinbase-ceo-before-2027) 3. [SEC: EDGAR company filings](https://www.sec.gov/edgar/search/) This is AI-assisted, source-linked explanatory journalism. We distinguish facts from interpretation and revise material errors. [How we work](https://www.homeincomelab.com/methodology) · [Corrections and contact](https://www.homeincomelab.com/contact)