TOTAL VOLUME:
$154.4b
24H VOL:
$235,918,089
24H TRANSACTIONS:
2,984,028,936
OPEN INTEREST:
$1,884,820,873
413,109
Markets across
40,428
events
MATCHED EVENTS:
4,364
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 9, 4:00 PM EST
Kalshi
This event tracks the performance of a major stock market index on a specific date, dividing possible outcomes into narrow numerical ranges. Each range represents a different potential closing value for the index, allowing participants to assess the likelihood of various economic scenarios.
Each market resolves based on the end-of-day value of the S&P 500 index on October 09, 2026, falling within one of thirty defined numerical ranges from below 7,300 up to above 7,999.9999. All markets close on October 09, 2026, and will expire at the sooner of the first official release of the index data or one week after the closing date. The Exchange has applied specific modifications to the Source Agency and Underlying for index markets as per the Kalshi Rulebook.
Currently, prediction market odds often reflect a different perspective than traditional analyst forecasts. While analysts frequently publish point estimates and ranges, this market aggregates the wisdom of the crowd, representing a distribution of beliefs about the S&P 500’s price. It's common to see discrepancies, as analysts may be influenced by biases or specific modeling assumptions. This market provides a real-time, financially incentivized forecast, potentially offering a more accurate signal than relying solely on expert opinions. Comparing this market's implied probabilities to those derived from surveys of financial professionals can reveal interesting insights.
On Kalshi, this market is priced through a continuous order book where traders bid and ask for contracts representing different price ranges for the S&P 500. The current price of a contract reflects the probability of the S&P 500 settling within that range. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders participate, the prices adjust to reflect the collective assessment of the likely outcome. The market depth, displayed on the dashboard, shows the volume available at different price levels, indicating the strength of conviction among traders. This dynamic pricing mechanism ensures the market remains responsive to new information and changing expectations.
This market resolves around Oct 9, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Specifically, the final settlement price will be based on the official closing value of the S&P 500 index at 4:00 PM EDT on October 9, 2026. Traders who correctly predicted the price range will receive a payout based on the contract’s value at resolution. The platform will verify the outcome against publicly available data sources to ensure an accurate and transparent resolution process.
Numerous economic and geopolitical events could significantly impact this market. Major economic indicators like inflation reports, GDP growth, and employment figures will be closely watched. Unexpected shifts in Federal Reserve policy regarding interest rates could also trigger substantial price movements. Geopolitical events, such as international conflicts or trade disputes, can introduce uncertainty and volatility. Furthermore, company earnings reports, particularly from the largest constituents of the S&P 500, will influence investor sentiment and trading activity in this market. Any surprise developments in these areas have the potential to shift expectations and alter the price of contracts.