This contract asks whether Airbnb, Inc. (ABNB) will close higher on October 28, 2026 than on the most recent prior trading day. The market resolves to "Up" if the October 28 close is higher than the prior trading day's close, and to "Down" if it is lower [1]. The listed end time is 2026-10-28T20:00:00.000Z [1]. The rules use the most recent prior trading day as the comparison point. For example, a Monday market would normally refer to the previous Friday's close, unless that Friday was a market holiday, in which case the reference would move to the next most recent trading day [1]. Because the rules are tied to trading days rather than calendar days, the comparison date is not always the day before the contract date. Closing prices are taken from Pyth, and the rules specify that they are used exactly as published, without rounding [1]. For a standard full session, the close is the Pyth "Close" value of the one-minute candle for the final minute of regular trading hours on the primary exchange [1]. The rules describe regular trading hours as typically 9:30 AM to 4:00 PM ET and say that only prices from that window count [1]. Several fallback rules apply. If either relevant day lacks a valid Pyth close for that final minute, the market uses the last valid Pyth price during regular trading hours as the effective close. If no valid Pyth price exists because of an outage, data failure, or other technical disruption, the official closing price published by the primary exchange is used instead [1]. If the two closing prices are exactly equal, the market resolves 50-50. The same outcome applies if the stock does not trade at all during the regular session [1]. For stock splits or similar corporate actions during the time frame, the market resolves on split-adjusted prices as displayed on Pyth [1]. The resolution source is the Pyth "Close" value for the relevant one-minute candle on the Pyth data page for ABNB [1]. The rules are the governing reference for how the contract settles, so readers should consult them directly rather than relying on this summary for edge cases. In the saved snapshot, the platform listed the Up outcome at 0.505 and the Down outcome at 0.495 [1]. These figures were observed at 2026-10-27T21:00:06.613Z and are not a live or executable quote. Because the two prices are close to each other, the snapshot shows little difference in the market's assessment between the two outcomes at that observation time, but a price snapshot does not establish the likelihood of either outcome.

Historical Context

Airbnb, Inc. is described in the supplied background as an American company operating an online marketplace for short-and-long-term homestays, experiences and services in various countries and regions. It acts as a broker and charges a commission from each booking. The company was founded in 2008 by Brian Chesky, Nathan Blecharczyk, and Joe Gebbia [2]. The background does not cover the company's stock performance or any events affecting the share price around the contract dates.

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