NYSE:AON | Historical Stock Price | Aon plc

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
1980-06-02 to 2026-09-04
Data captured

Stock Price Chart

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

$2.39$8.08$27.30$92.20$311.44$1,051.961980-06-022026-08-27

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

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Historical Stock Price — 1981

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1981-12-31$3.56$3.5691,125
1981-12-30$3.56$3.56400,950
1981-12-29$3.52$3.52141,075
1981-12-28$3.43$3.4345,225
1981-12-24$3.43$3.4388,425
1981-12-23$3.41$3.41326,025
1981-12-22$3.43$3.43112,050
1981-12-21$3.39$3.3969,525
1981-12-18$3.41$3.4112,825
1981-12-17$3.43$3.4330,375
1981-12-16$3.43$3.43116,100
1981-12-15$3.41$3.4149,275
1981-12-14$3.37$3.3743,875
1981-12-11$3.37$3.3734,425
1981-12-10$3.41$3.4175,600
1981-12-09$3.43$3.4388,425
1981-12-08$3.50$3.50128,925
1981-12-07$3.50$3.50162,675
1981-12-04$3.50$3.5062,100
1981-12-03$3.35$3.35292,275
1981-12-02$3.35$3.3534,425
1981-12-01$3.39$3.39107,325
1981-11-30$3.37$3.37149,850
1981-11-27$3.35$3.3534,425
1981-11-25$3.35$3.35268,650
1981-11-24$3.44$3.4460,750
1981-11-23$3.50$3.50201,825
1981-11-20$3.39$3.3971,550
1981-11-19$3.39$3.3931,050
1981-11-18$3.41$3.4149,950
1981-11-17$3.44$3.44761,400
1981-11-16$3.43$3.43101,250
1981-11-13$3.52$3.52654,075
1981-11-12$3.56$3.56222,750
1981-11-11$3.50$3.50116,775
1981-11-10$3.43$3.43240,300
1981-11-09$3.37$3.37341,550
1981-11-06$3.28$3.28247,725
1981-11-05$3.30$3.3034,425
1981-11-04$3.24$3.24132,975
1981-11-03$3.24$3.24174,825
1981-11-02$3.24$3.24415,800
1981-10-30$3.15$3.1583,025
1981-10-29$3.15$3.15189,675
1981-10-28$3.04$3.04196,425
1981-10-27$2.89$2.8995,850
1981-10-26$3.04$3.04128,250
1981-10-23$3.11$3.1147,250
1981-10-22$3.19$3.1939,150
1981-10-21$3.13$3.1339,150
1981-10-20$3.17$3.17141,075
1981-10-19$3.17$3.1723,625
1981-10-16$3.15$3.1522,275
1981-10-15$3.09$3.09110,025
1981-10-14$3.13$3.1365,475
1981-10-13$3.13$3.1321,600
1981-10-12$3.17$3.1733,075
1981-10-09$3.24$3.24165,375
1981-10-08$3.19$3.1943,200
1981-10-07$3.11$3.1154,000
1981-10-06$3.06$3.0629,700
1981-10-05$3.06$3.06261,225
1981-10-02$3.07$3.0776,275
1981-10-01$3.04$3.0497,200
1981-09-30$3.07$3.07137,700
1981-09-29$3.11$3.11345,600
1981-09-28$2.96$2.96233,550
1981-09-25$2.83$2.8353,325
1981-09-24$2.93$2.93183,600
1981-09-23$2.94$2.9449,950
1981-09-22$3.00$3.00290,250
1981-09-21$2.91$2.9164,800
1981-09-18$2.93$2.9381,675
1981-09-17$2.87$2.8787,075
1981-09-16$2.98$2.9878,300
1981-09-15$3.00$3.0034,425
1981-09-14$2.98$2.98100,575
1981-09-11$3.04$3.04151,200
1981-09-10$2.98$2.9891,800
1981-09-09$2.89$2.8973,575
1981-09-08$2.83$2.83301,050
1981-09-04$2.81$2.81248,400
1981-09-03$2.91$2.9182,350
1981-09-02$2.96$2.9635,775
1981-09-01$2.96$2.96369,900
1981-08-31$3.00$3.0092,475
1981-08-28$3.02$3.02295,650
1981-08-27$3.02$3.02132,975
1981-08-26$3.04$3.04116,775
1981-08-25$3.00$3.00472,500
1981-08-24$2.98$2.98124,200
1981-08-21$3.06$3.0680,325
1981-08-20$3.02$3.0258,725
1981-08-19$3.04$3.0465,475
1981-08-18$3.07$3.0770,875
1981-08-17$3.15$3.1526,325
1981-08-14$3.17$3.17104,625
1981-08-13$3.17$3.1764,800
1981-08-12$3.19$3.1954,675
1981-08-11$3.15$3.1585,725
1981-08-10$3.04$3.0469,525
1981-08-07$3.13$3.1324,300
1981-08-06$3.15$3.15140,400
1981-08-05$3.15$3.15118,125
1981-08-04$3.24$3.2472,900
1981-08-03$3.20$3.2048,600
1981-07-31$3.13$3.1323,625
1981-07-30$3.07$3.0749,950
1981-07-29$3.09$3.0931,050
1981-07-28$3.17$3.1746,575
1981-07-27$3.19$3.1931,050
1981-07-24$3.17$3.1766,825
1981-07-23$3.06$3.0675,600
1981-07-22$3.09$3.0962,100
1981-07-21$3.06$3.0633,750
1981-07-20$3.19$3.1942,525
1981-07-17$3.28$3.2824,300
1981-07-16$3.30$3.30171,450
1981-07-15$3.35$3.3544,550
1981-07-14$3.33$3.3343,875
1981-07-13$3.28$3.2854,675
1981-07-10$3.30$3.3047,925
1981-07-09$3.33$3.33221,400
1981-07-08$3.28$3.2860,075
1981-07-07$3.22$3.2265,475
1981-07-06$3.11$3.11199,800
1981-07-02$2.98$2.98131,625
1981-07-01$3.02$3.02668,925
1981-06-30$3.15$3.1542,525
1981-06-29$3.22$3.2277,625
1981-06-26$3.26$3.2648,600
1981-06-25$3.26$3.2658,725
1981-06-24$3.35$3.3527,000
1981-06-23$3.39$3.3943,875
1981-06-22$3.37$3.37458,325
1981-06-19$3.30$3.3055,350
1981-06-18$3.35$3.35159,300
1981-06-17$3.39$3.39193,725
1981-06-16$3.35$3.35729,675
1981-06-15$3.33$3.33248,400
1981-06-12$3.24$3.2464,800
1981-06-11$3.19$3.1995,175
1981-06-10$3.15$3.15118,800
1981-06-09$3.19$3.19221,400
1981-06-08$3.24$3.24437,400
1981-06-05$3.09$3.09386,775
1981-06-04$3.06$3.06224,775
1981-06-03$3.00$3.00631,800
1981-06-02$3.06$3.06165,375
1981-06-01$3.17$3.17273,375
1981-05-29$3.11$3.1174,250
1981-05-28$3.15$3.15156,600
1981-05-27$3.13$3.13205,200
1981-05-26$3.15$3.15258,525
1981-05-22$3.19$3.19313,875
1981-05-21$3.22$3.22106,650
1981-05-20$3.22$3.22206,550
1981-05-19$3.24$3.2460,075
1981-05-18$3.24$3.24167,400
1981-05-15$3.26$3.26131,625
1981-05-14$3.30$3.30151,200
1981-05-13$3.15$3.1542,525
1981-05-12$3.13$3.13285,525
1981-05-11$3.00$3.0023,625
1981-05-08$2.98$2.98263,925
1981-05-07$3.04$3.04236,925
1981-05-06$2.94$2.94155,250
1981-05-05$2.93$2.9368,850
1981-05-04$2.96$2.96378,675
1981-05-01$3.06$3.0679,650
1981-04-30$3.09$3.09149,850
1981-04-29$3.09$3.091,303,425
1981-04-28$3.13$3.13147,150
1981-04-27$3.19$3.19268,650
1981-04-24$3.20$3.20130,950
1981-04-23$3.20$3.20177,525
1981-04-22$3.19$3.19130,950
1981-04-21$3.28$3.28128,925
1981-04-20$3.30$3.3078,300
1981-04-16$3.30$3.30463,050
1981-04-15$3.24$3.2492,475
1981-04-14$3.24$3.24139,725
1981-04-13$3.22$3.2278,975
1981-04-10$3.20$3.20161,325
1981-04-09$3.11$3.11198,450
1981-04-08$3.11$3.11318,600
1981-04-07$3.15$3.1565,475
1981-04-06$3.15$3.15121,500
1981-04-03$3.19$3.19118,125
1981-04-02$3.19$3.19826,875
1981-04-01$3.13$3.13121,500
1981-03-31$3.19$3.19400,950
1981-03-30$3.19$3.1997,875
1981-03-27$3.13$3.13185,625
1981-03-26$3.20$3.20670,950
1981-03-25$3.11$3.11127,575
1981-03-24$3.11$3.11678,375
1981-03-23$3.13$3.13203,175
1981-03-20$3.19$3.19577,125
1981-03-19$3.07$3.07244,350
1981-03-18$3.00$3.00375,300
1981-03-17$2.91$2.91278,100
1981-03-16$2.85$2.85216,000
1981-03-13$2.74$2.74301,050
1981-03-12$2.78$2.78101,250
1981-03-11$2.72$2.72224,775
1981-03-10$2.74$2.74803,925
1981-03-09$2.72$2.72532,575
1981-03-06$2.78$2.78127,575
1981-03-05$2.83$2.83170,100
1981-03-04$2.85$2.85207,225
1981-03-03$2.72$2.72160,650
1981-03-02$2.67$2.67201,150
1981-02-27$2.59$2.59186,975
1981-02-26$2.54$2.54100,575
1981-02-25$2.54$2.54247,050
1981-02-24$2.52$2.52159,300
1981-02-23$2.52$2.52198,450
1981-02-20$2.48$2.48372,600
1981-02-19$2.54$2.54125,550
1981-02-18$2.54$2.54796,500
1981-02-17$2.59$2.59681,075
1981-02-13$2.56$2.56126,900
1981-02-12$2.56$2.5691,125
1981-02-11$2.52$2.5270,200
1981-02-10$2.56$2.56115,425
1981-02-09$2.54$2.54129,600
1981-02-06$2.57$2.5757,375
1981-02-05$2.56$2.56181,575
1981-02-04$2.54$2.54220,050
1981-02-03$2.56$2.5698,550
1981-02-02$2.54$2.54101,250
1981-01-30$2.61$2.61816,750
1981-01-29$2.65$2.6532,400
1981-01-28$2.65$2.6574,925
1981-01-27$2.67$2.67285,525
1981-01-26$2.65$2.6541,175
1981-01-23$2.67$2.67168,750
1981-01-22$2.65$2.6535,775
1981-01-21$2.65$2.6539,825
1981-01-20$2.65$2.65106,650
1981-01-19$2.65$2.65124,875
1981-01-16$2.65$2.6571,550
1981-01-15$2.72$2.7239,150
1981-01-14$2.69$2.69193,725
1981-01-13$2.65$2.6543,875
1981-01-12$2.65$2.65184,275
1981-01-09$2.65$2.6593,825
1981-01-08$2.72$2.72218,025
1981-01-07$2.69$2.69271,350
1981-01-06$2.72$2.72546,075
1981-01-05$2.65$2.65103,950
1981-01-02$2.61$2.6154,000