PolymarketCheck availabilityNo KYCVerified resolution dataWell calibratedCurrent implied probability
Down 84%+34.0pt
Down 84%+34.0ptMarket quality
66 / 100
Medium quality24h Volume
$4.7K
Liquidity
$22.7K
Medium liquidityBid / Ask
15.0% / 17.0%
Spread
2.0 pt
Moderate spreadComments
0
Market data
Updated 8 minutes ago
Sep 25, 26, 12:01 PM UTCSep 28, 26, 8:00 PM UTC
Trends
Venue terms
Source: Polymarket
Informational venue terms only; CoinRithm paper trading uses its own rules.
- Minimum order (shares):
- 5
- Tick size:
- 1 percentage points
- Fees:
- Yes
Related Markets
Related questions for context, not a comparison of equivalent contracts.
What will S&P 500 (SPY) hit Week of September 28 2026?
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PolymarketS&P 500 (SPY) closes above ___ on September 28?
PolymarketWhat will S&P 500 (SPY) hit Week of September 28 2026?
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PolymarketRules
This market will resolve to "Up" if the Close price for S&P 500 (SPY) on September 28, 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 28, 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.
