TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 8, 4:00 PM EST
Limitless
This market will resolve to "Up" if the price for S&P 500 ETF (Pyth SPY/USD) on September 8, 2026 is strictly higher than the price for S&P 500 ETF (Pyth SPY/USD) on the most recent prior trading day. Otherwise, this market will resolve to "Down". The price for S&P 500 ETF (Pyth SPY/USD) captured on September 4, 2026 was $770.12250. Resolution source: Pyth SPY/USD price feed. Other exchanges, spot markets, and oracles will not be used. For example, a Monday market would ordinarily compare Monday's price with the previous Friday's price, unless that Friday was a market holiday. In that case, it would compare against Thursday's price, or the next most recent trading day. If S&P 500 ETF (SPY) does not trade at all during the regular session on September 8, 2026, this market will resolve to "Down". For a standard full trading session, the price for that trading day refers to the Pyth price at the end of regular trading hours on the primary exchange. If either relevant trading day has no valid Pyth price at the end of regular trading hours on the primary exchange, the last valid Pyth price published during that day's regular trading hours will be used as the effective price for that day. If no valid Pyth price exists for that trading day due to a system outage, data failure, or other technical disruption, the official price published by the primary exchange on which SPY is listed will be used to determine the price for that day. In the event of a stock split, reverse stock split, or similar corporate action affecting SPY during the relevant time frame, this market will resolve based on split-adjusted prices as displayed on Pyth.
This market will resolve to "Up" if the price for S&P 500 ETF (Pyth SPY/USD) on September 8, 2026 is strictly higher than the price for S&P 500 ETF (Pyth SPY/USD) on the most recent prior trading day. Otherwise, this market will resolve to "Down". The price for S&P 500 ETF (Pyth SPY/USD) captured on September 4, 2026 was $770.12250. Resolution source: Pyth SPY/USD price feed. Other exchanges, spot markets, and oracles will not be used. For example, a Monday market would ordinarily compare Monday's price with the previous Friday's price, unless that Friday was a market holiday. In that case, it would compare against Thursday's price, or the next most recent trading day. If S&P 500 ETF (SPY) does not trade at all during the regular session on September 8, 2026, this market will resolve to "Down". For a standard full trading session, the price for that trading day refers to the Pyth price at the end of regular trading hours on the primary exchange. If either relevant trading day has no valid Pyth price at the end of regular trading hours on the primary exchange, the last valid Pyth price published during that day's regular trading hours will be used as the effective price for that day. If no valid Pyth price exists for that trading day due to a system outage, data failure, or other technical disruption, the official price published by the primary exchange on which SPY is listed will be used to determine the price for that day. In the event of a stock split, reverse stock split, or similar corporate action affecting SPY during the relevant time frame, this market will resolve based on split-adjusted prices as displayed on Pyth.
On Limitless, this market is priced through a continuous auction process where traders buy and sell contracts representing their belief about whether the SPY will close higher or lower. The price of these contracts fluctuates based on supply and demand, directly reflecting the collective probability assigned to each outcome. On Limitless, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The platform uses a logarithmic scaling system, meaning that small changes in probability near 50% have a larger impact on price than similar changes near 0% or 100%. This ensures that the market remains efficient and responsive to new information.
This market resolves around Sep 8, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Specifically, the closing price of the S&P 500 ETF (SPY) on the relevant trading day will determine whether the 'Up' or 'Down' outcome is triggered. The resolution will be based on official closing data from a recognized financial exchange. Traders will then be able to claim their winnings or adjust their strategies based on the final result of this market.
Numerous factors could influence the direction of this market. Major economic data releases, such as inflation reports or employment numbers, often trigger significant price movements. Unexpected geopolitical events, shifts in Federal Reserve policy, and earnings reports from large companies within the S&P 500 are also key catalysts. Furthermore, overall market sentiment, driven by news headlines and investor confidence, can play a substantial role in shaping the probabilities reflected in this market. Any significant surprise in these areas could lead to rapid shifts in the odds.