Automatic Data Processing (ADP) went public on April 6, 1983, when it opened at a split-adjusted price of $0.82.
| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
January 2026 | $257.03 | $268.08 | $251.65 | $262.80 | 12,837,196 |
December 2025 | $252.37 | $267.85 | $251.57 | $257.23 | 54,944,173 |
November 2025 | $258.63 | $260.57 | $245.59 | $253.66 | 40,396,200 |
October 2025 | $290.60 | $291.75 | $256.53 | $258.63 | 41,536,300 |
September 2025 | $298.15 | $299.18 | $280.46 | $291.62 | 43,477,700 |
August 2025 | $304.44 | $306.50 | $295.21 | $300.54 | 30,520,100 |
July 2025 | $304.62 | $312.33 | $293.03 | $305.92 | 31,934,100 |
June 2025 | $317.48 | $324.50 | $293.32 | $304.84 | 37,043,700 |
May 2025 | $294.28 | $322.59 | $288.89 | $320.17 | 30,328,300 |
April 2025 | $300.35 | $304.40 | $268.13 | $295.65 | 45,788,200 |
March 2025 | $309.16 | $315.84 | $283.17 | $300.50 | 44,541,000 |
February 2025 | $296.72 | $309.60 | $296.15 | $308.35 | 29,138,700 |
January 2025 | $287.46 | $304.91 | $279.29 | $296.44 | 34,889,700 |
December 2024 | $299.45 | $299.51 | $281.39 | $286.38 | 40,091,900 |
November 2024 | $280.31 | $301.35 | $278.35 | $298.73 | 32,039,500 |
October 2024 | $270.75 | $286.32 | $266.14 | $281.51 | 34,811,900 |
September 2024 | $264.37 | $274.02 | $259.32 | $269.33 | 34,077,600 |
August 2024 | $252.15 | $268.02 | $248.36 | $267.19 | 31,151,100 |
July 2024 | $231.73 | $260.97 | $223.96 | $254.32 | 34,818,000 |
June 2024 | $235.09 | $243.69 | $228.77 | $231.14 | 32,494,900 |
May 2024 | $240.41 | $245.17 | $230.42 | $235.82 | 29,249,600 |
April 2024 | $241.07 | $241.29 | $230.81 | $232.90 | 32,352,100 |
March 2024 | $238.78 | $241.89 | $229.95 | $240.46 | 47,440,800 |
February 2024 | $234.54 | $245.61 | $231.64 | $240.41 | 31,669,300 |
January 2024 | $223.41 | $240.49 | $221.78 | $235.28 | 36,956,800 |
