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Historical Stock Information

Historical trading information is available beginning on October 3, 1988, the first day Atmos Energy Corporation (ATO) traded on the New York Stock Exchange (NYSE). You may either download the entire trading history in Comma-Separated Value (.CSV) format, or get trading data for a specific date. CSV files may be imported into most popular spreadsheet and database programs. All closing prices have been adjusted for splits and dividends.

Download Historical Trading Data
CSV file

Single-Day Trading Data