TOTAL VOLUME:
$154.4b
24H VOL:
$290,393,159
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,944,100,805
420,493
Markets across
40,511
events
MATCHED EVENTS:
4,612
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 19, 4:00 PM EST
Kalshi
This event tracks the performance of a major stock market index at a specific future date and time, allowing participants to speculate on whether the index will surpass certain thresholds. The outcome depends solely on the index's value at the exact close time, reflecting broader economic and market sentiment predictions.
All markets share the same core resolution mechanism: each resolves to 'Yes' if the S&P 500 index value at 4pm EDT on October 19, 2026 exceeds a specific threshold (e.g., 7574.9999, 7579.9999, etc.). Thresholds vary sequentially across markets, with each subsequent rule testing a higher value. All markets close on October 19, 2026, and expire either when the index value is first officially released or one week after the close date, whichever occurs sooner. The Exchange has applied modifications to the Source Agency and Underlying for index markets as per the Kalshi Rulebook, but these modifications do not alter the fundamental resolution criteria or timing outlined above. Outcomes are determined exclusively by the index's closing value at the specified time and date.