Hunch. The index needs to end the year above its 7,818.93 record, and the one past fall that never got back to a record had the same war-driven oil price as now.
The record market resolves YES if the S&P 500 closes above its 6 October record of 7,818.93 on 31 December 2026, and NO if it closes at 7,818.93 or lower, even after a new record earlier in November or December. It settles on the same official close from S&P Dow Jones Indices, checked against Guardian and Independent market reports, which decide if the S&P page is closed.
We looked for cases where results from one of the ten biggest US companies sent its shares down at least 5% in a day, and the S&P 500 fell with them, less than two months after a record close. We kept the days when the fall was blamed on spending on a new technology growing faster than the money it brings in. We found five such days since October 2016. Four times the index ended that quarter above its close on the day of the fall, but only twice by more than 3.6%, the rise it needed from the 29 October close to reach 8,000.