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View Price for ATO.
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Sep '18
Jan '19
May '19
 
285.00
270.00
255.00
240.00
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Historical Price Data

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Date Open High Low Close Volume
Aug 25, 2026 167.94 168.43 167.10 167.56 971420.0
Aug 24, 2026 166.35 167.97 166.03 167.82 795697.0
Aug 21, 2026 172.12 172.12 166.85 166.85 1.072M
Aug 20, 2026 170.75 173.12 170.37 170.52 1.128M
Aug 19, 2026 171.40 172.17 170.38 171.31 916246.0
Aug 18, 2026 172.07 172.73 170.32 170.51 825853.0
Aug 17, 2026 170.47 171.52 168.90 169.90 1.548M
Aug 14, 2026 169.50 170.28 169.12 169.92 1.285M
Aug 13, 2026 170.30 172.09 169.40 169.96 1.316M
Aug 12, 2026 169.06 170.36 168.13 169.59 1.270M
Aug 11, 2026 167.79 169.48 167.24 169.21 909562.0
Aug 10, 2026 172.27 172.27 167.14 167.92 898896.0
Aug 07, 2026 170.96 172.30 169.70 170.19 907518.0
Aug 06, 2026 173.35 173.60 170.87 171.98 1.127M
Aug 05, 2026 172.18 172.58 170.46 172.20 1.280M
Aug 04, 2026 172.60 173.71 170.00 172.65 1.348M
Aug 03, 2026 171.96 174.22 171.53 172.89 812415.0
Jul 31, 2026 173.30 174.92 172.22 172.78 1.046M
Jul 30, 2026 176.94 177.42 173.55 174.26 1.157M
Jul 29, 2026 180.49 181.37 177.09 177.67 961387.0
Jul 28, 2026 179.61 182.64 178.96 179.38 984408.0
Jul 27, 2026 180.79 180.79 177.57 178.22 638512.0
Jul 24, 2026 179.09 180.00 178.10 179.22 817406.0
Jul 23, 2026 177.40 179.71 177.40 178.04 697948.0
Jul 22, 2026 176.90 178.56 176.19 178.47 791201.0

Price Definition

The price of a security measures the cost to purchase 1 share of a security. For a company, price can be multiplied by shares outstanding to find the market capitalization (value of the company).

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