S&P 500 (SPX) Opening Price on April 8?

This market will resolve according to the official opening price for the S&P 500 (SPX) on April 8, 2026. If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. If the April 8, 2026 trading day is shortened (for example, due to a market-holiday schedule), the official opening price published for that shortened session will still be used for resolution. If no official opening price is published for that session (for example, due to a delayed open, system issue, or other disruption), the market will use the first valid on-exchange trade price of the regular session as the effective opening price. The resolution source for this market is Yahoo Finance, specifically the S&P 500 (SPX) “Open” prices available at https://finance.yahoo.com/quote/%5EGSPC/history, published under “Historical Prices.”