How many times has Automatic Data Processing (ADP) split its stock?

Our data shows 8 stock splits for Automatic Data Processing (ADP). See the table on this page for dates and ratios.

What is a stock split?

A stock split increases the number of shares outstanding while proportionally lowering the share price, so market capitalization is unchanged. Chart and return tools often use split-adjusted prices. The split table on this page refreshes daily from our corporate-actions data.

What is the cumulative split multiple for ADP?

Multiplying each split factor in chronological order gives a cumulative multiple of about 80.6997 from the oldest split through the most recent one in our table.

Does a stock split change the value of my ADP investment?

A split does not change the total market value of your holding by itself; you own more shares at a lower per-share price. Dividends per share and some per-share metrics are often adjusted for splits.

Stock split history for Automatic Data Processing (ADP)

Automatic Data Processing stock (symbol: ADP) underwent a total of 8 stock splits.

The most recent stock split occurred on October 1, 2014.

One ADP share bought prior to July 2, 1976 would equal 80.6997 ADP shares today.

The same share count applies to one share bought at IPO on March 17, 1980.

Automatic Data Processing

ADP

Stock splits history (since IPO on March 17, 1980)

Cumulative multiple is the running product of split factors from the chronologically oldest row through each date. Rows are listed newest-first, so the cumulative column reads forward in time from the bottom of the table toward the top.

Date	Type	Split	Multiple	Cumulative multiple	Pre-split price	Post-split price
October 1, 2014	Stock split	1139:1000	x1.139	x80.6997	$83.01	$73.03
April 2, 2007	Stock split	10000:9033	x1.1071	x70.8513	$48.09	$44.07
January 4, 1999	Stock split	2:1	x2	x64	$79.67	$40.74
January 2, 1996	Stock split	2:1	x2	x32	$73.79	$36.77
May 1, 1991	Stock split	2:1	x2	x16	$67.59	$34.30
June 9, 1986	Stock split	2:1	x2	x8	$73.03	$36.72
May 22, 1981	Stock split	2:1	x2	x4	$59.31	$29.66
July 2, 1976	Stock split	2:1	x2	x2	—	$33.04

October 1, 2014

Type: Stock split
Split: 1139:1000
Multiple: x1.139
Cumulative multiple: x80.6997
Pre-split price: $83.01
Post-split price: $73.03

April 2, 2007

Type: Stock split
Split: 10000:9033
Multiple: x1.1071
Cumulative multiple: x70.8513
Pre-split price: $48.09
Post-split price: $44.07

January 4, 1999

Type: Stock split
Split: 2:1
Multiple: x2
Cumulative multiple: x64
Pre-split price: $79.67
Post-split price: $40.74

January 2, 1996

Type: Stock split
Split: 2:1
Multiple: x2
Cumulative multiple: x32
Pre-split price: $73.79
Post-split price: $36.77

May 1, 1991

Type: Stock split
Split: 2:1
Multiple: x2
Cumulative multiple: x16
Pre-split price: $67.59
Post-split price: $34.30

June 9, 1986

Type: Stock split
Split: 2:1
Multiple: x2
Cumulative multiple: x8
Pre-split price: $73.03
Post-split price: $36.72

May 22, 1981

Type: Stock split
Split: 2:1
Multiple: x2
Cumulative multiple: x4
Pre-split price: $59.31
Post-split price: $29.66

July 2, 1976

Type: Stock split
Split: 2:1
Multiple: x2
Cumulative multiple: x2
Pre-split price: —
Post-split price: $33.04

Pre-split price is the final regular-session close on a trading day strictly before the split calendar date. Post-split price is the first session open on or after that date. Both values come from unadjusted end-of-day bars for the company's primary listing.

The Type column reflects the data feed's event category (for example stock split vs stock dividend). When the feed labels a generic split but the ratio is reverse (e.g. 1:10), we show reverse stock split. Optional editorial context for a row appears next to the split ratio as an info icon (hover or keyboard focus on desktop; tap on mobile). The same text is listed under Row notes when that block is expanded.

Wondering why some rows show ratios like 51:50 or 2000:1973? Read: stock split ratios explained →How the cumulative column is computed: cumulative split multiplier explained. For ratios driven by spin-offs, see spin-offs explained. Or read the methodology for how prices and cumulative multiples are computed.

Stock splits for companies in the Industrials sector

8 peers sorted by market cap

Compare split histories across large names in the same sector. Each ticker links to its own split table; the list excludes ETFs and funds and follows our daily company snapshot.

Ticker	Company	Market cap
CAT	Caterpillar Inc.	$380.54B
GE	GE Aerospace	$302.16B
RTX	RTX Corporation	$236.58B
BA	The Boeing Company	$181.88B
ETN	Eaton Corporation plc	$160.26B
UNP	Union Pacific Corporation	$158.96B
DE	Deere & Company	$152.30B
HON	Honeywell International Inc.	$134.92B

Frequently asked questions

How many times has Automatic Data Processing (ADP) split its stock?: Our data shows 8 stock splits for Automatic Data Processing (ADP). See the table on this page for dates and ratios.
What is a stock split?: A stock split increases the number of shares outstanding while proportionally lowering the share price, so market capitalization is unchanged. Chart and return tools often use split-adjusted prices. The split table on this page refreshes daily from our corporate-actions data.
What is the cumulative split multiple for ADP?: Multiplying each split factor in chronological order gives a cumulative multiple of about 80.6997 from the oldest split through the most recent one in our table.
Does a stock split change the value of my ADP investment?: A split does not change the total market value of your holding by itself; you own more shares at a lower per-share price. Dividends per share and some per-share metrics are often adjusted for splits.