Resolves YES if the official S&P 500 closing level on Tuesday, October 27, 2026 is strictly higher than the official close on Monday, October 26, 2026, per S&P Dow Jones Indices, Google Finance or Yahoo Finance (^GSPC). Resolves NO if equal or lower. Resolves N/A if US markets are closed on October 27, 2026. Trading closes October 27, 2026 at 15:00 Paris time, before the US open. The creator will not bet on this market.