The first four tables show only the largest one-day changes between a given day's close and the close of the previous trading day,〔(【引用サイトリンク】title=Historical Index Data All-Time Largest One Day Gains and Losses )〕〔(Highlights/Lowlights of The Dow ) (Excel spreadsheet)〕 not the largest changes during the trading day (i.e. intraday changes).
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