Price Chart

View Price for ATO.
Upgrade now.
Sep '18
Jan '19
May '19
 
285.00
270.00
255.00
240.00
View Price Chart
Start Trial

Historical Price Data

View and export this data back to 1990. Start Trial.
Date Open High Low Close Volume
Sep 14, 2026 164.16 165.08 163.14 163.84 987555.0
Sep 11, 2026 165.72 165.87 163.04 163.19 970688.0
Sep 10, 2026 167.56 168.06 164.67 164.81 902991.0
Sep 09, 2026 168.22 168.30 165.89 166.59 667009.0
Sep 08, 2026 167.19 169.06 167.19 168.07 773727.0
Sep 04, 2026 168.40 169.58 167.28 167.56 694132.0
Sep 03, 2026 168.30 169.44 167.42 169.12 688590.0
Sep 02, 2026 167.66 168.36 165.98 167.68 874850.0
Sep 01, 2026 167.13 167.75 166.16 167.70 785043.0
Aug 31, 2026 165.50 166.76 164.62 166.13 1.148M
Aug 28, 2026 168.35 168.35 166.38 166.65 516721.0
Aug 27, 2026 168.07 168.07 166.41 167.22 825256.0
Aug 26, 2026 167.74 169.63 166.50 169.46 739214.0
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

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).

Read full definition.

Price Range, Past 5 Years

View Price Range, Past 5 Years
Start Trial
--
Minimum
--
Maximum
--
Average
--
Median

Price Benchmarks

Price Related Metrics