PolymarketCheck availabilityNo KYC2% feeVerified resolution dataWell calibratedCurrent implied probability
Down 66%
Market quality
24 / 100
Low quality24h Volume
—
Liquidity
$43.8
Low liquidityBid / Ask
2.0% / 67.0%
Spread
65.0 pt
Wide spreadComments
0
Market data
Updated 8 minutes ago
Sep 18, 26, 12:01 PM UTCSep 21, 26, 9:00 PM UTC
Trends
Related Markets
Related questions for context, not a comparison of equivalent contracts.
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Manifold MarketsRules
This market will resolve to "Up" if the reference price for British Pound / US Dollar (GBP/USD) on September 21, 2026 is higher than the reference price for the most recent prior reference day.
- This market will resolve to "Down" if it is lower.
- If the two reference prices are exactly equal, this market will resolve 50-50.
- 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.
- Reference prices will be used exactly as published by Pyth, without rounding.
- A "reference day" is any day on which the applicable trading session for British Pound / US Dollar (GBP/USD), per the trading-hours schedule listed on Pyth, includes 4:59 PM ET.
Open markets
Foreign ExchangePOLYMARKETUSD x Iranian rials End of December?
- 2.0 - 2.5M+8.5pt34.3%
- 2.5 - 3.0M-1.5pt24.5%
- 3.0 - 3.5M-6.5pt17.6%
+3 more outcomes
- Total Vol
- $16K
- 24h Vol
- $3.7K
POLYMARKETUSD x Iranian rials End of September?
- 2.2M++3.0pt88.3%
- 2.1-2.2M-3.0pt4.8%
- 1.8-1.9M+0.1pt1.9%
+4 more outcomes
POLYMARKETLargest IPO by market cap in 2026?
- Anthropic-2.2pt53.5%
- SpaceX+4.0pt45.5%
- OpenAI-0.3pt1%
+9 more outcomes
POLYMARKETUSD x Iranian rials End of September? (Higher Strikes)
- 2.2 to 2.5M+3.5pt68%
- 2.5 to 2.8M+4.5pt17.5%
- <2.2M-4.5pt9.7%
+2 more outcomes
KALSHIUSD/JPY price on Sep 21, 2026 at 10am EDT?
- 156.249 or below-4.0pt28%
- 156.750 to 156.99922%
- 156.250 to 156.4999%
+12 more outcomes
- Total Vol
- $5.8K
- 24h Vol
KALSHIWill Trump create a National Bitcoin Reserve in 2026?
- No96%
- Yes-5.4pt4%
- Total Vol
- $190K
- 24h Vol
- $783.2
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Frequently asked questions
- What are the current odds for British Pound / US Dollar (GBP/USD) Up or Down on September 21??
- Polymarket prices Down at 66% as of September 20, 2026.
- When does British Pound / US Dollar (GBP/USD) Up or Down on September 21? resolve?
- British Pound / US Dollar (GBP/USD) Up or Down on September 21? is scheduled to resolve on September 21, 2026.
- How is British Pound / US Dollar (GBP/USD) Up or Down on September 21? settled?
- Polymarket settles this market as follows: This market will resolve to "Up" if the reference price for British Pound / US Dollar (GBP/USD) on September 21, 2026 is higher than the reference price for the most recent prior reference day.