The original S&P 500 gain of 1.31% is corrected to 0.17%, and the Nasdaq gain of 2.09% to 0.39%. A dated retrospective with source-linked closing observations and transparent calculations.
Historical review through 2026-09-14: How Large Was the Corrected Korean Decline? Source-linked daily data, a five-observation comparison and explicit corrections.
Historical review through 2026-09-02: What Was the Recalculated Korean Loss? Source-linked daily data, a five-observation comparison and explicit corrections.
Historical review through 2026-08-07: Was the Korean Decline as Large as Reported? Source-linked daily data, a five-observation comparison and explicit corrections.