Daily trading records
Automatic Data Processing Stock Price on August 21, 2026
Direct answer
Automatic Data Processing closed at $280.81 on August 21, 2026.
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Review Automatic Data Processing's price trend and period performance.
The chart connects verified session closes from May 27, 2026 through August 21, 2026.
Period performance is calculated from verified trading sessions.
5-session performance
+2.88%
From the August 14, 2026 close of $272.96 to $280.81 on August 21, 2026.
20-session performance
+12.28%
From the July 24, 2026 close of $250.09 to $280.81 on August 21, 2026.
60-session performance
+29.02%
From the May 27, 2026 close of $217.65 to $280.81 on August 21, 2026.
Verified data
- Open
- $279.70
- High
- $282.165
- Low
- $277.00
- Close
- $280.81
- Volume
- 2,609,724
- Prior-close change
- +$1.60 (+0.57%)
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Read the frequently asked questions.
What was Automatic Data Processing's closing price on August 21, 2026?
Automatic Data Processing closed at $280.81 on August 21, 2026.
What were Automatic Data Processing's open, high and low on August 21, 2026?
The open was $279.70, the high was $282.165 and the low was $277.00.
How much did Automatic Data Processing change from the prior close on August 21, 2026?
The change from the prior close was +$1.60 (+0.57%).
What was Automatic Data Processing's volume on August 21, 2026?
Trading volume was 2,609,724 shares.
What is the source for Automatic Data Processing's daily prices?
Daily aggregate prices are provided by Polygon.