NASDAQ:ADP | Historical Stock Price | AUTOMATIC DATA PROCESSING INC

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
1980-03-17 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$0.78$3.02$11.73$45.56$177.01$687.721980-03-172026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2005

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2005-12-30$36.40$47.041,337,849
2005-12-29$36.81$47.56917,580
2005-12-28$36.99$47.801,621,054
2005-12-27$36.97$47.781,808,555
2005-12-23$36.88$47.661,371,138
2005-12-22$36.93$47.732,483,658
2005-12-21$36.80$47.551,458,772
2005-12-20$36.83$47.601,682,336
2005-12-19$36.77$47.521,572,256
2005-12-16$36.96$47.762,479,749
2005-12-15$37.08$47.921,369,120
2005-12-14$37.22$48.101,397,995
2005-12-13$36.90$47.692,301,327
2005-12-12$36.69$47.411,755,974
2005-12-09$37.00$47.821,685,488
2005-12-08$36.83$47.602,379,631
2005-12-07$37.13$47.981,348,063
2005-12-06$37.27$47.982,026,444
2005-12-05$37.17$47.851,905,268
2005-12-02$37.52$48.301,412,496
2005-12-01$37.70$48.531,759,253
2005-11-30$37.27$47.982,368,787
2005-11-29$36.99$47.612,918,806
2005-11-28$36.73$47.292,997,866
2005-11-25$37.30$48.01558,467
2005-11-23$37.08$47.721,643,877
2005-11-22$37.23$47.931,762,657
2005-11-21$37.62$48.421,785,606
2005-11-18$37.83$48.692,947,555
2005-11-17$38.03$48.951,906,277
2005-11-16$37.71$48.541,583,352
2005-11-15$37.52$48.302,193,518
2005-11-14$37.68$48.501,610,210
2005-11-11$37.62$48.421,486,261
2005-11-10$37.98$48.893,727,315
2005-11-09$36.87$47.462,273,335
2005-11-08$36.77$47.341,919,517
2005-11-07$36.96$47.581,460,286
2005-11-04$36.93$47.542,498,789
2005-11-03$36.87$47.462,151,276
2005-11-02$36.95$47.562,695,369
2005-11-01$36.69$47.222,985,509
2005-10-31$37.00$47.633,097,480
2005-10-28$37.15$47.824,428,015
2005-10-27$37.00$47.626,106,947
2005-10-26$36.47$46.958,462,242
2005-10-25$34.54$44.464,550,200
2005-10-24$34.57$44.504,236,858
2005-10-21$33.86$43.583,541,580
2005-10-20$33.99$43.753,199,615
2005-10-19$34.25$44.092,375,596
2005-10-18$33.83$43.551,530,267
2005-10-17$33.63$43.282,307,758
2005-10-14$34.19$44.012,484,919
2005-10-13$33.93$43.673,042,251
2005-10-12$33.67$43.332,096,678
2005-10-11$33.85$43.572,466,131
2005-10-10$34.12$43.921,408,587
2005-10-07$34.22$44.051,792,793
2005-10-06$34.24$44.072,749,841
2005-10-05$34.13$43.942,578,480
2005-10-04$34.20$44.032,859,542
2005-10-03$34.11$43.912,597,772
2005-09-30$34.13$43.941,870,719
2005-09-29$34.07$43.862,546,957
2005-09-28$34.20$44.033,395,690
2005-09-27$33.48$43.091,758,748
2005-09-26$33.28$42.832,017,618
2005-09-23$33.36$42.951,668,718
2005-09-22$33.55$43.191,888,372
2005-09-21$33.63$43.293,015,015
2005-09-20$33.59$43.233,816,968
2005-09-19$33.09$42.592,455,161
2005-09-16$33.07$42.574,414,397
2005-09-15$33.07$42.571,970,837
2005-09-14$33.13$42.641,970,333
2005-09-13$33.01$42.493,474,625
2005-09-12$33.45$43.061,933,766
2005-09-09$33.85$43.571,274,298
2005-09-08$33.59$43.231,531,402
2005-09-07$33.64$43.301,399,635
2005-09-06$33.95$43.542,040,566
2005-09-02$33.68$43.201,796,702
2005-09-01$33.50$42.962,285,566
2005-08-31$33.90$43.483,162,418
2005-08-30$34.25$43.932,436,625
2005-08-29$34.54$44.301,299,769
2005-08-26$34.41$44.132,062,759
2005-08-25$34.68$44.481,542,624
2005-08-24$34.70$44.502,251,647
2005-08-23$34.89$44.741,686,875
2005-08-22$34.94$44.821,179,854
2005-08-19$34.89$44.741,532,789
2005-08-18$34.97$44.851,390,304
2005-08-17$34.97$44.862,073,729
2005-08-16$34.98$44.871,391,439
2005-08-15$35.34$45.321,161,697
2005-08-12$35.31$45.281,200,029
2005-08-11$35.30$45.271,236,596
2005-08-10$35.18$45.122,124,671
2005-08-09$34.96$44.841,275,685
2005-08-08$34.89$44.751,286,781
2005-08-05$34.89$44.741,336,210
2005-08-04$34.89$44.741,783,210
2005-08-03$35.20$45.141,976,637
2005-08-02$35.18$45.121,664,557
2005-08-01$35.18$45.122,022,661
2005-07-29$35.22$45.172,029,218
2005-07-28$35.58$45.643,697,557
2005-07-27$34.93$44.802,841,384
2005-07-26$34.77$44.593,488,999
2005-07-25$34.74$44.553,092,184
2005-07-22$34.85$44.692,308,262
2005-07-21$34.69$44.492,863,577
2005-07-20$34.37$44.081,718,777
2005-07-19$34.35$44.052,254,294
2005-07-18$33.86$43.431,577,300
2005-07-15$33.97$43.571,825,073
2005-07-14$33.68$43.201,368,364
2005-07-13$33.46$42.911,988,616
2005-07-12$33.65$43.161,789,515
2005-07-11$33.61$43.113,123,959
2005-07-08$33.28$42.693,316,882
2005-07-07$33.11$42.471,996,560
2005-07-06$33.21$42.602,322,385
2005-07-05$33.45$42.902,674,311
2005-07-01$33.53$43.011,510,975
2005-06-30$33.28$42.692,503,833
2005-06-29$33.43$42.871,990,255
2005-06-28$33.61$43.113,540,824
2005-06-27$32.62$41.842,775,690
2005-06-24$32.27$41.394,932,767
2005-06-23$32.70$41.944,671,880
2005-06-22$33.29$42.702,780,986
2005-06-21$33.51$42.972,936,333
2005-06-20$33.73$43.262,203,605
2005-06-17$33.92$43.502,998,875
2005-06-16$33.94$43.532,509,759
2005-06-15$33.74$43.282,468,905
2005-06-14$33.90$43.481,721,929
2005-06-13$34.01$43.631,807,798
2005-06-10$34.04$43.662,405,354
2005-06-09$34.24$43.922,337,138
2005-06-08$34.16$43.812,853,489
2005-06-07$34.66$44.301,555,990
2005-06-06$34.73$44.382,036,531
2005-06-03$34.62$44.242,003,999
2005-06-02$35.05$44.801,808,933
2005-06-01$34.92$44.631,902,999
2005-05-31$34.74$44.392,804,061
2005-05-27$35.31$45.121,175,567
2005-05-26$35.18$44.961,607,436
2005-05-25$35.05$44.801,597,727
2005-05-24$35.33$45.151,679,309
2005-05-23$35.33$45.151,904,386
2005-05-20$35.45$45.311,391,943
2005-05-19$35.28$45.091,512,992
2005-05-18$35.09$44.852,297,797
2005-05-17$34.89$44.591,572,761
2005-05-16$34.89$44.601,292,960
2005-05-13$34.89$44.591,968,063
2005-05-12$34.86$44.551,681,201
2005-05-11$34.82$44.502,177,756
2005-05-10$34.31$43.852,424,899
2005-05-09$34.85$44.541,451,711
2005-05-06$34.91$44.621,458,646
2005-05-05$34.98$44.711,541,742
2005-05-04$35.12$44.881,652,704
2005-05-03$35.05$44.802,348,990
2005-05-02$34.75$44.411,871,475
2005-04-29$34.45$44.032,429,942
2005-04-28$34.34$43.891,882,950
2005-04-27$34.81$44.481,942,844
2005-04-26$34.61$44.232,161,742
2005-04-25$35.32$45.132,470,166
2005-04-22$35.16$44.942,527,034
2005-04-21$35.21$45.003,117,403
2005-04-20$33.95$43.391,854,453
2005-04-19$34.22$43.732,068,937
2005-04-18$34.39$43.952,679,859
2005-04-15$34.47$44.053,019,932
2005-04-14$35.31$45.122,101,974
2005-04-13$35.55$45.432,513,794
2005-04-12$35.60$45.502,055,950
2005-04-11$35.42$45.262,445,452
2005-04-08$35.87$45.841,620,424
2005-04-07$36.06$46.091,538,842
2005-04-06$35.89$45.861,562,547
2005-04-05$35.82$45.781,871,223
2005-04-04$35.59$45.492,603,068
2005-04-01$35.55$45.442,630,052
2005-03-31$35.65$45.562,493,367
2005-03-30$35.68$45.603,369,841
2005-03-29$35.65$45.563,305,029
2005-03-28$35.94$45.931,810,572
2005-03-24$35.81$45.762,206,883
2005-03-23$35.85$45.813,532,627
2005-03-22$35.66$45.583,177,423
2005-03-21$35.61$45.512,870,008
2005-03-18$35.51$45.395,036,163
2005-03-17$35.43$45.283,582,056
2005-03-16$35.22$45.013,347,144
2005-03-15$35.08$44.833,670,826
2005-03-14$34.82$44.501,697,719
2005-03-11$34.51$44.102,962,182
2005-03-10$34.49$44.081,898,838
2005-03-09$34.31$43.693,538,806
2005-03-08$34.40$43.812,750,597
2005-03-07$34.39$43.792,207,640
2005-03-04$33.99$43.283,839,286
2005-03-03$33.85$43.101,941,331
2005-03-02$34.01$43.312,248,116
2005-03-01$34.10$43.432,056,833
2005-02-28$34.07$43.393,297,085
2005-02-25$34.10$43.432,769,890
2005-02-24$33.81$43.052,222,267
2005-02-23$33.25$42.352,670,276
2005-02-22$33.08$42.121,872,106
2005-02-18$33.28$42.382,415,820
2005-02-17$33.61$42.802,087,221
2005-02-16$33.48$42.642,512,912
2005-02-15$33.67$42.872,140,180
2005-02-14$33.74$42.971,961,758
2005-02-11$34.05$43.372,203,857
2005-02-10$33.72$42.942,171,199
2005-02-09$33.98$43.273,166,831
2005-02-08$34.71$44.201,969,450
2005-02-07$34.67$44.151,718,903
2005-02-04$35.01$44.592,552,379
2005-02-03$34.98$44.552,311,667
2005-02-02$34.63$44.092,160,229
2005-02-01$34.88$44.422,434,608
2005-01-31$34.48$43.912,118,996
2005-01-28$34.26$43.631,601,510
2005-01-27$34.23$43.592,119,501
2005-01-26$34.56$44.012,604,960
2005-01-25$34.60$44.062,568,140
2005-01-24$34.30$43.683,212,729
2005-01-21$33.97$43.254,764,684
2005-01-20$34.50$43.934,351,981
2005-01-19$34.83$44.364,153,258
2005-01-18$35.01$44.584,785,742
2005-01-14$33.63$42.823,305,534
2005-01-13$32.91$41.911,923,552
2005-01-12$33.56$42.742,926,245
2005-01-11$33.87$43.132,158,211
2005-01-10$33.81$43.052,100,335
2005-01-07$33.78$43.021,876,771
2005-01-06$33.85$43.102,444,695
2005-01-05$34.08$43.402,578,858
2005-01-04$34.22$43.581,978,150
2005-01-03$34.78$44.281,673,761