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 — 1986

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1986-12-31$7.82$8.75539,325
1986-12-30$7.94$8.88332,775
1986-12-29$7.91$8.84609,525
1986-12-26$7.93$8.86232,200
1986-12-24$7.89$8.82226,800
1986-12-23$8.07$9.03824,850
1986-12-22$8.21$9.18573,750
1986-12-19$8.37$9.36274,725
1986-12-18$8.46$9.46355,725
1986-12-17$8.35$9.34509,625
1986-12-16$8.30$9.28715,500
1986-12-15$8.30$9.28251,100
1986-12-12$8.37$9.36331,425
1986-12-11$8.31$9.30278,100
1986-12-10$8.35$9.34280,800
1986-12-09$8.35$9.34880,875
1986-12-08$8.27$9.25349,650
1986-12-05$8.22$9.19153,900
1986-12-04$8.28$9.26261,900
1986-12-03$8.22$9.191,427,625
1986-12-02$8.19$9.15499,500
1986-12-01$8.07$9.0386,400
1986-11-28$8.15$9.11153,225
1986-11-26$8.17$9.13315,900
1986-11-25$8.13$9.091,024,650
1986-11-24$8.19$9.15432,000
1986-11-21$8.11$9.07181,575
1986-11-20$8.05$9.00351,675
1986-11-19$7.96$8.90508,950
1986-11-18$8.06$9.01145,125
1986-11-17$8.15$9.11346,275
1986-11-14$8.11$9.07751,950
1986-11-13$8.33$9.32106,650
1986-11-12$8.46$9.4695,175
1986-11-11$8.44$9.43227,475
1986-11-10$8.46$9.4695,175
1986-11-07$8.46$9.46143,775
1986-11-06$8.50$9.51429,975
1986-11-05$8.46$9.46223,425
1986-11-04$8.27$9.25182,250
1986-11-03$8.31$9.30159,975
1986-10-31$8.30$9.28163,350
1986-10-30$8.33$9.32149,850
1986-10-29$8.27$9.25126,900
1986-10-28$8.30$9.2849,275
1986-10-27$8.44$9.4470,875
1986-10-24$8.27$9.25110,025
1986-10-23$8.31$9.3066,825
1986-10-22$8.24$9.2270,200
1986-10-21$8.30$9.28170,775
1986-10-20$8.33$9.3286,400
1986-10-17$8.50$9.5174,250
1986-10-16$8.37$9.36119,475
1986-10-15$8.52$9.53157,950
1986-10-14$8.56$9.5751,300
1986-10-13$8.52$9.53326,700
1986-10-10$8.59$9.6191,125
1986-10-09$8.59$9.61556,200
1986-10-08$8.59$9.61107,325
1986-10-07$8.59$9.6160,750
1986-10-06$8.56$9.5759,400
1986-10-03$8.44$9.44502,200
1986-10-02$8.33$9.3265,475
1986-10-01$8.30$9.28217,350
1986-09-30$8.05$9.0072,225
1986-09-29$8.09$9.05216,000
1986-09-26$8.19$9.1539,150
1986-09-25$8.27$9.25141,075
1986-09-24$8.24$9.22112,725
1986-09-23$8.21$9.18124,875
1986-09-22$8.15$9.11135,000
1986-09-19$8.00$8.95225,450
1986-09-18$8.00$8.95222,750
1986-09-17$7.99$8.94197,100
1986-09-16$7.72$8.64371,925
1986-09-15$7.87$8.80194,400
1986-09-12$7.89$8.82387,450
1986-09-11$8.07$9.03228,825
1986-09-10$8.27$9.25105,975
1986-09-09$8.30$9.28309,150
1986-09-08$8.41$9.40269,325
1986-09-05$8.61$9.63302,400
1986-09-04$8.63$9.65255,150
1986-09-03$8.63$9.65231,525
1986-09-02$8.63$9.65247,725
1986-08-29$8.71$9.74155,925
1986-08-28$8.81$9.86351,675
1986-08-27$8.85$9.90511,650
1986-08-26$8.89$9.94164,700
1986-08-25$8.81$9.86535,275
1986-08-22$8.80$9.8477,625
1986-08-21$8.85$9.90654,075
1986-08-20$8.71$9.74473,850
1986-08-19$8.57$9.59197,775
1986-08-18$8.67$9.69386,775
1986-08-15$8.61$9.63163,350
1986-08-14$8.74$9.77205,875
1986-08-13$8.78$9.82290,250
1986-08-12$8.71$9.74102,600
1986-08-11$8.71$9.74118,800
1986-08-08$8.59$9.61235,575
1986-08-07$8.41$9.40230,850
1986-08-06$8.30$9.28589,275
1986-08-05$8.15$9.11408,375
1986-08-04$8.11$9.07120,150
1986-08-01$8.11$9.07709,425
1986-07-31$8.09$9.0530,375
1986-07-30$8.11$9.07273,375
1986-07-29$8.22$9.1974,925
1986-07-28$8.15$9.11183,600
1986-07-25$8.22$9.19755,325
1986-07-24$8.22$9.19207,225
1986-07-23$8.30$9.281,038,825
1986-07-22$8.63$9.65292,950
1986-07-21$8.37$9.36699,300
1986-07-18$8.52$9.53704,700
1986-07-17$8.33$9.32532,575
1986-07-16$8.33$9.32486,675
1986-07-15$8.49$9.49383,400
1986-07-14$8.66$9.6860,075
1986-07-11$8.71$9.74115,425
1986-07-10$8.74$9.77145,800
1986-07-09$8.71$9.74263,250
1986-07-08$8.56$9.57317,925
1986-07-07$9.04$10.11186,975
1986-07-03$9.28$10.37137,025
1986-07-02$9.19$10.27408,375
1986-07-01$9.04$10.11170,775
1986-06-30$8.96$10.0269,525
1986-06-27$8.89$9.94204,525
1986-06-26$9.04$10.11162,675
1986-06-25$9.00$10.06301,725
1986-06-24$8.94$9.99134,325
1986-06-23$8.80$9.84105,300
1986-06-20$8.76$9.80286,200
1986-06-19$8.85$9.90349,650
1986-06-18$8.76$9.80416,475
1986-06-17$8.67$9.69141,750
1986-06-16$8.59$9.61414,450
1986-06-13$8.37$9.36340,200
1986-06-12$8.30$9.28427,950
1986-06-11$8.28$9.26362,475
1986-06-10$8.11$9.071,576,800
1986-06-09$8.28$9.26273,375
1986-06-06$8.39$9.38116,775
1986-06-05$8.41$9.40473,850
1986-06-04$8.57$9.59188,325
1986-06-03$8.56$9.57170,775
1986-06-02$8.63$9.65244,350
1986-05-30$8.76$9.80392,850
1986-05-29$8.81$9.86294,300
1986-05-28$8.72$9.75415,800
1986-05-27$8.56$9.57600,750
1986-05-23$8.31$9.30132,300
1986-05-22$8.44$9.43523,125
1986-05-21$8.30$9.28386,775
1986-05-20$8.46$9.46726,975
1986-05-19$8.44$9.44388,800
1986-05-16$8.69$9.71193,050
1986-05-15$8.74$9.77176,175
1986-05-14$8.72$9.7534,425
1986-05-13$8.74$9.7771,550
1986-05-12$8.76$9.80135,675
1986-05-09$8.89$9.94974,025
1986-05-08$8.94$9.9956,025
1986-05-07$9.00$10.06305,100
1986-05-06$9.07$10.15226,125
1986-05-05$8.96$10.02313,875
1986-05-02$8.96$10.02535,950
1986-05-01$8.94$9.99774,225
1986-04-30$8.85$9.90255,825
1986-04-29$8.96$10.0266,150
1986-04-28$9.10$10.18292,950
1986-04-25$9.04$10.11292,275
1986-04-24$9.13$10.21135,000
1986-04-23$9.22$10.31149,175
1986-04-22$9.44$10.56184,950
1986-04-21$9.41$10.5282,350
1986-04-18$9.43$10.54113,400
1986-04-17$9.56$10.69231,525
1986-04-16$9.30$10.40298,350
1986-04-15$9.07$10.1578,975
1986-04-14$9.16$10.24278,100
1986-04-11$9.04$10.11241,650
1986-04-10$8.94$9.99114,075
1986-04-09$8.89$9.94177,525
1986-04-08$8.85$9.90283,500
1986-04-07$8.81$9.86267,975
1986-04-04$8.85$9.90167,400
1986-04-03$9.00$10.06143,100
1986-04-02$9.28$10.37155,925
1986-04-01$9.30$10.40240,300
1986-03-31$9.30$10.40282,825
1986-03-27$9.28$10.37211,950
1986-03-26$9.19$10.27219,375
1986-03-25$9.07$10.15672,300
1986-03-24$9.38$10.49292,275
1986-03-21$9.61$10.75229,500
1986-03-20$9.71$10.86749,250
1986-03-19$9.49$10.61450,225
1986-03-18$9.22$10.31168,750
1986-03-17$9.22$10.31119,475
1986-03-14$9.27$10.36166,725
1986-03-13$9.19$10.27116,100
1986-03-12$9.16$10.24121,500
1986-03-11$9.06$10.13519,750
1986-03-10$8.88$9.93119,475
1986-03-07$8.88$9.9387,750
1986-03-06$9.00$10.06124,200
1986-03-05$8.89$9.9494,500
1986-03-04$9.02$10.09164,025
1986-03-03$8.71$9.74288,900
1986-02-28$8.88$9.93264,600
1986-02-27$8.81$9.86252,450
1986-02-26$8.74$9.7793,825
1986-02-25$8.89$9.9490,450
1986-02-24$8.91$9.96217,350
1986-02-21$8.91$9.96447,525
1986-02-20$8.74$9.77403,650
1986-02-19$8.81$9.86348,975
1986-02-18$8.81$9.86403,650
1986-02-14$8.63$9.65305,100
1986-02-13$8.52$9.531,094,850
1986-02-12$8.52$9.53134,325
1986-02-11$8.33$9.32321,975
1986-02-10$8.15$9.11684,450
1986-02-07$8.07$9.03222,750
1986-02-06$8.00$8.95417,825
1986-02-05$7.93$8.86568,350
1986-02-04$7.89$8.82318,600
1986-02-03$7.94$8.88802,575
1986-01-31$7.89$8.82845,100
1986-01-30$8.00$8.95570,375
1986-01-29$7.85$8.78298,350
1986-01-28$7.70$8.61382,725
1986-01-27$7.82$8.75318,600
1986-01-24$7.76$8.68297,675
1986-01-23$7.65$8.55475,875
1986-01-22$7.67$8.57543,375
1986-01-21$7.69$8.5936,450
1986-01-20$7.63$8.5387,750
1986-01-17$7.70$8.61353,025
1986-01-16$7.69$8.59176,175
1986-01-15$7.70$8.61124,200
1986-01-14$7.69$8.5939,825
1986-01-13$7.67$8.5774,250
1986-01-10$7.67$8.57135,675
1986-01-09$7.63$8.53452,250
1986-01-08$7.72$8.64234,225
1986-01-07$7.70$8.611,373,625
1986-01-06$7.63$8.53149,175
1986-01-03$7.67$8.57416,475
1986-01-02$7.60$8.50283,500