S&P price range on Mar 25, 2026 at 4pm EDT?

The winning outcome is the predefined range that contains the official S&P 500 index level at 4:00pm EDT on March 25, 2026, as captured by the market's designated data source; settlement follows the platform's published rules for mapping an observed index value to a range.

Opening and closing times are set by the Kalshi market page for this event; the market page is the authoritative source for the current trading window and any pre-set suspension times, and the close may be listed as TBD until Kalshi publishes it.

Major scheduled releases and Fed communications can materially move the index in the minutes or hours surrounding 4pm EDT, shifting market-implied chances among adjacent ranges and increasing intraday volatility that makes precise range prediction harder.

The platform will follow its contingency and settlement rules, which typically specify alternative official sources, delayed prints, or other procedures to determine the final value; consult Kalshi's rulebook or customer support for the exact fallback and adjudication process.

Each outcome corresponds to a contract that pays out if the final index level falls within that outcome's range; traders should size positions with attention to range width, potential for rapid moves across multiple ranges, transaction costs, and their tolerance for a single-outcome binary payoff structure.