PolymarketCheck availabilityNo KYC2% feeVerified resolution dataWell calibratedCurrent implied probability
Up 51.5%
Market quality
≤49 / 100
Low quality24h Volume
—
Liquidity
$129.2
Low liquidityBid / Ask
51.0% / 52.0%
Spread
1.0 pt
Tight spreadComments
0
Market data
Updated 11 minutes ago
Sep 8, 26, 12:01 PM UTCSep 9, 26, 8:00 PM UTC
Trends
Rules
This market will resolve to "Up" if the Close price for S&P 500 (SPY) on September 9, 2026 is higher than the Close price for S&P 500 (SPY) on the most recent prior trading day.
- This market will resolve to "Down" if the Close price for S&P 500 (SPY) on September 9, 2026 is lower than the Close price for S&P 500 (SPY) on the most recent prior trading day.
- E.g., ordinarily, a market on Monday would refer to the previous Friday for its most recent closing price, unless that Friday were a market holiday, in which case it would refer to Thursday, or the next most recent trading day.
- If the two specified closing prices are exactly equal, this market will resolve 50-50.
- Closing prices will be used exactly as published by Pyth, without rounding.
- If S&P 500 (SPY) does not trade at all during the regular session, the market will resolve 50-50.
Frequently asked questions
- What are the current odds for SPY (SPY) Up or Down on September 9??
- Polymarket prices Up at 51% as of September 8, 2026.
- When does SPY (SPY) Up or Down on September 9? resolve?
- SPY (SPY) Up or Down on September 9? is scheduled to resolve on September 9, 2026.
- How is SPY (SPY) Up or Down on September 9? settled?
- Polymarket settles this market as follows: This market will resolve to "Up" if the Close price for S&P 500 (SPY) on September 9, 2026 is higher than the Close price for S&P 500 (SPY) on the most recent prior trading day.
