What is Automatic Data Processing, Inc.'s shares (basic)?

Automatic Data Processing, Inc. (ADP) reported shares (basic) of 401.7M in Q1 2026.

How has Automatic Data Processing, Inc.'s shares (basic) changed year-over-year?

Automatic Data Processing, Inc.'s shares (basic) decreased by 1.3% year-over-year, from 406.9M to 401.7M.

What does shares (basic) mean?

The average number of shares held by investors during the period.

Shares (Basic)

Automatic Data Processing, Inc. Shares (Basic) decreased by 0.5% to 401.7M in Q1 2026 compared to the prior quarter. Year-over-year, this metric declined by 1.3%, from 406.9M to 401.7M.

Analysis

StatementIncome Statement

SectionEarnings Per Share

CategoryCapital Allocation

SignalContext dependent

VolatilityStable

First reportedQ1 2014

Last reportedQ3 2026Apr 30, 2026

How to read this metric

Changes reflect share buybacks (decrease) or equity issuance (increase), which impact the per-share earnings calculation.

Detailed definition

The average number of common shares outstanding during the reporting period, calculated by weighting the number of share...

Peer comparison

Standard metric for all public companies; reflects capital structure and share repurchase activity.

Metric ID: weighted_shares_basic

Historical Data

15 periods

	Q1 '22	Q2 '22	Q3 '22	Q1 '23	Q2 '23	Q3 '23	Q1 '24	Q2 '24	Q3 '24	Q1 '25	Q2 '25	Q3 '25	Q1 '26	Q2 '26	Q3 '26
Value	421.4M	419.8M	418.1M	414.6M	414.3M	413.7M	411.7M	411.1M	410.5M	407.9M	407.6M	406.9M	405.1M	403.8M	401.7M
QoQ Change	—	-0.4%	-0.4%	-0.8%	-0.1%	-0.1%	-0.5%	-0.1%	-0.1%	-0.6%	-0.1%	-0.2%	-0.4%	-0.3%	-0.5%
YoY Change	—	—	—	-1.6%	-1.3%	-1.1%	-0.7%	-0.8%	-0.8%	-0.9%	-0.9%	-0.9%	-0.7%	-0.9%	-1.3%

Range401.7M – 421.4M

CAGR-1.4%

Avg YoY Growth-1.0%

Median YoY Growth-0.9%

Current Streak14+ quarters decline

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Frequently Asked Questions

What is Automatic Data Processing, Inc.'s shares (basic)?: Automatic Data Processing, Inc. (ADP) reported shares (basic) of 401.7M in Q1 2026.
How has Automatic Data Processing, Inc.'s shares (basic) changed year-over-year?: Automatic Data Processing, Inc.'s shares (basic) decreased by 1.3% year-over-year, from 406.9M to 401.7M.
What does shares (basic) mean?: The average number of shares held by investors during the period.