PolymarketCheck availabilityNo KYC2% feeVerified resolution dataFairly calibratedCurrent implied probability
Down 99%+51.6pt
Market quality
78 / 100
High quality24h Volume
$37.5K
Liquidity
$11.1K
Medium liquidityBid / Ask
0.3% / 1.5%
Spread
1.2 pt
Tight spreadComments
0
Market data
Updated 8 minutes ago
Aug 31, 26, 12:00 PMSep 1, 26, 8:00 PM
Trends
Rules
This market will resolve to "Up" if the Close price for S&P 500 (SPY) on September 1, 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 1, 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.
Open markets
Equities
LIMITLESSS&P 500 ETF (SPY) Up or Down - Daily
- No93.3%
- Yes6.7%
- Total Vol
- $107.3K
- 24h Vol
- $107.3K
POLYMARKETS&P 500 (SPX) Up or Down on September 1?
- Down+34.7pt99%
- Up-34.7pt1%
- Total Vol
- $64.8K
- 24h Vol
- $64.8K
KALSHIS&P price on Sep 1, 2026 at 4pm EDT?
- 7,580 or above99%
- 7,575 or above99%
- 7,595 or above99%
+57 more outcomes
- Total Vol
- $54.6K
- 24h Vol
- $54.3K
KALSHINasdaq-100 price on Sep 1, 2026 at 4pm EDT?
- 28,900 or above99%
- 28,840 or above99%
- 28,830 or above99%
+97 more outcomes
- Total Vol
- $41.6K
- 24h Vol
- $41.6K
LIMITLESSEQT Energy Company (EQT) Up or Down - Daily
- Yes50%
- No50%
- Total Vol
- $33.1K
- 24h Vol
- $33.1K
KALSHIS&P close price end of 2026?
- 7,800 to 7,999.9915.9%
- 8,000 to 8,199.99-1.0pt15%
- 7,600 to 7,799.9911.5%
+24 more outcomes
- Total Vol
- $6.3M
- 24h Vol
- What will S&P 500 (SPY) hit in September 2026?
- Will Anthropic’s valuation hit __ by December 31?
- What will S&P 500 (SPY) hit Week of August 31 2026?
- S&P 500 Daily Up/Down
- Largest Company end of December 2026?
- Nasdaq-100 close price end of 2026?
- Will Anthropic’s valuation hit __ by September 30?
- How high will the S&P get this year?
- What will Robinhood Markets, Inc. (HOOD) hit Week of August 31 2026?
- NVIDIA (NVDA) Up or Down - Daily
Frequently asked questions
- What are the current odds for SPY (SPY) Up or Down on September 1??
- Polymarket prices Down at 99% as of September 1, 2026.
- When does SPY (SPY) Up or Down on September 1? resolve?
- SPY (SPY) Up or Down on September 1? is scheduled to resolve on September 1, 2026.
- How is SPY (SPY) Up or Down on September 1? settled?
- Polymarket settles this market as follows: This market will resolve to "Up" if the Close price for S&P 500 (SPY) on September 1, 2026 is higher than the Close price for S&P 500 (SPY) on the most recent prior trading day.