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Polymarket· finance· open· settles 2026-09-11

US Dollar / Swiss Franc (USD/CHF) Up or Down on September 11?

Open on PolymarketYes last at 50¢

The catch

  • Resolves based on comparison to the most recent prior reference day, not a fixed baseline.
    This market will resolve to "Up" if the reference price for US Dollar / Swiss Franc (USD/CHF) on September 11, 2026 is higher than the reference price for the most recent prior reference day. · market rules

Pays out only if

  • The USD/CHF exchange rate on September 11, 2026 must be higher than the most recent prior reference day.
    This market will resolve to "Up" if the reference price for US Dollar / Swiss Franc (USD/CHF) on September 11, 2026 is higher than the reference price for the most recent prior reference day. · market rules
  • Decided at the event on September 11, 2026
    This market will resolve to "Up" if the reference price for US Dollar / Swiss Franc (USD/CHF) on September 11, 2026 is higher than the reference price for the most recent prior reference day. · market rules
  • Counts as done when: The Close value of the Pyth 1-minute candle timestamped 4:59 PM ET on September 11, 2026
    For each day, the reference price is the "Close" value of the Pyth 1-minute candle timestamped 4:59 PM ET (covering 4:59:00–4:59:59 PM ET) on that date. · market rules
  • Decided by: Pyth
    The resolution source for this market is Pyth, specifically the "Close" value of the relevant 1-minute candle for US Dollar / Swiss Franc (USD/CHF) available at https://pythdata.app/explore/FX.USD%2FCHF. · market rules

Does not count

  • USD/CHF increases compared to a fixed date (e.g., market creation date) rather than the most recent prior reference dayour reading
  • USD/CHF increases at any point during September 11, 2026, rather than specifically at the 4:59 PM ET closeour reading
  • USD/CHF increases based on a different data source or exchange rate providerour reading
  • USD/CHF increases on a weekend or holiday when September 11, 2026 falls on such a dayour reading

Watch out

  • HIGHA Yes here may pay less than a dollar
    If the two reference prices are exactly equal, this market will resolve 50-50. · market rules
  • WATCHSome obvious wins don't count
  • NOTEAn outside data source decides, with a named backup
    The resolution source for this market is Pyth, specifically the "Close" value of the relevant 1-minute candle for US Dollar / Swiss Franc (USD/CHF) available at https://pythdata.app/explore/FX.USD%2FCHF. · market rules

Read on 2026-09-10. Click a line for the sentence it rests on. Facts and gaps only, not a prediction.

The rules, in plain English

This market resolves to "Up" if the USD/CHF exchange rate on September 11, 2026 is higher than the most recent prior reference day. It resolves to "Down" if it is lower. If the two prices are exactly equal, it resolves 50-50. For each day, the reference price is the "Close" value of the Pyth 1-minute candle at 4:59 PM ET on that date. Reference prices are used exactly as published by Pyth, without rounding. A "reference day" is any day when the USD/CHF trading session includes 4:59 PM ET according to Pyth's trading-hours schedule. For example, a Monday market would normally refer to the previous Friday, since weekend sessions don't include a 4:59 PM ET close; if that Friday were a holiday, it would refer to the next most recent prior reference day. All times are Eastern Time. If no valid Pyth Close value exists for the 4:59 PM ET candle on any day needing a reference price (including September 11, 2026 itself, such as on a day with shortened trading hours), the last valid Pyth price published before 5:00 PM ET on that date will be used. If no valid Pyth price is published at all on the prior reference day (due to a system outage, data failure, or other technical disruption), the next most recent prior reference day with a valid Pyth price will be used instead. If no valid Pyth price is published at all on September 11, 2026, or if September 11, 2026 is not a trading day under Pyth's trading-hours schedule, this market resolves 50-50. The resolution source is Pyth, specifically the "Close" value of the relevant 1-minute candle for USD/CHF available at https://pythdata.app/explore/FX.USD%2FCHF. Historical 1-minute candles can be accessed by appending a Unix timestamp (seconds) to the Pyth chart URL using the "t=" parameter.