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 — 1983

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1983-12-30$5.96$6.35119,475
1983-12-29$5.83$6.2176,275
1983-12-28$5.81$6.19151,875
1983-12-27$5.89$6.27514,350
1983-12-23$5.87$6.2556,700
1983-12-22$5.89$6.27204,525
1983-12-21$5.83$6.21276,750
1983-12-20$5.63$5.99369,225
1983-12-19$5.61$5.9795,175
1983-12-16$5.67$6.03265,275
1983-12-15$5.70$6.07190,350
1983-12-14$5.69$6.05120,825
1983-12-13$5.74$6.11236,925
1983-12-12$5.81$6.19160,650
1983-12-09$5.70$6.07777,600
1983-12-08$5.72$6.0967,500
1983-12-07$5.78$6.15141,075
1983-12-06$5.81$6.19257,850
1983-12-05$5.65$6.01157,275
1983-12-02$5.72$6.09153,900
1983-12-01$5.74$6.11148,500
1983-11-30$5.74$6.11213,975
1983-11-29$5.87$6.25178,875
1983-11-28$5.89$6.27197,775
1983-11-25$5.91$6.2995,175
1983-11-23$5.91$6.29153,225
1983-11-22$5.85$6.23996,300
1983-11-21$5.83$6.21594,000
1983-11-18$5.67$6.03561,600
1983-11-17$5.76$6.13477,900
1983-11-16$6.00$6.392,020,275
1983-11-15$6.17$6.56263,250
1983-11-14$6.22$6.62419,175
1983-11-11$6.07$6.471,003,725
1983-11-10$6.11$6.50374,625
1983-11-09$6.07$6.47877,500
1983-11-08$5.96$6.35542,025
1983-11-07$5.78$6.15219,375
1983-11-04$5.61$5.971,628,100
1983-11-03$5.50$5.85588,600
1983-11-02$5.33$5.68173,475
1983-11-01$5.33$5.68596,700
1983-10-31$5.30$5.64184,950
1983-10-28$5.37$5.72747,900
1983-10-27$5.35$5.70386,100
1983-10-26$5.39$5.6675,600
1983-10-25$5.50$5.7770,200
1983-10-24$5.52$5.79266,625
1983-10-21$5.63$5.9166,150
1983-10-20$5.57$5.8595,175
1983-10-19$5.57$5.85107,325
1983-10-18$5.54$5.81117,450
1983-10-17$5.57$5.8596,525
1983-10-14$5.56$5.83100,575
1983-10-13$5.59$5.8768,850
1983-10-12$5.59$5.87140,400
1983-10-11$5.74$6.03321,300
1983-10-10$5.89$6.18267,300
1983-10-07$5.85$6.14380,025
1983-10-06$5.85$6.14320,625
1983-10-05$5.74$6.03760,050
1983-10-04$5.59$5.87173,475
1983-10-03$5.41$5.68328,050
1983-09-30$5.30$5.56309,825
1983-09-29$5.59$5.87928,125
1983-09-28$5.59$5.87266,625
1983-09-27$5.59$5.87259,875
1983-09-26$5.63$5.91595,350
1983-09-23$5.56$5.83979,425
1983-09-22$5.52$5.79735,075
1983-09-21$5.63$5.91961,200
1983-09-20$5.57$5.85520,425
1983-09-19$5.67$5.95226,800
1983-09-16$5.33$5.60198,450
1983-09-15$5.33$5.60233,550
1983-09-14$5.41$5.6864,800
1983-09-13$5.37$5.64127,575
1983-09-12$5.41$5.6899,225
1983-09-09$5.35$5.62214,650
1983-09-08$5.46$5.73350,325
1983-09-07$5.19$5.44348,975
1983-09-06$5.28$5.54132,975
1983-09-02$5.17$5.42319,275
1983-09-01$5.19$5.44294,300
1983-08-31$5.02$5.27226,125
1983-08-30$5.06$5.31292,275
1983-08-29$5.02$5.2732,400
1983-08-26$5.00$5.25141,075
1983-08-25$5.02$5.27209,250
1983-08-24$5.13$5.3898,550
1983-08-23$5.04$5.29878,850
1983-08-22$5.33$5.60734,400
1983-08-19$5.26$5.52240,300
1983-08-18$5.30$5.56433,350
1983-08-17$5.19$5.44818,775
1983-08-16$4.94$5.19268,650
1983-08-15$4.89$5.13199,800
1983-08-12$4.81$5.05386,100
1983-08-11$4.83$5.07459,000
1983-08-10$4.65$4.88778,275
1983-08-09$4.52$4.74497,475
1983-08-08$4.30$4.5180,325
1983-08-05$4.35$4.57168,075
1983-08-04$4.43$4.65210,600
1983-08-03$4.50$4.72454,275
1983-08-02$4.35$4.57365,850
1983-08-01$4.35$4.57158,625
1983-07-29$4.44$4.67357,075
1983-07-28$4.56$4.78105,300
1983-07-27$4.63$4.78343,575
1983-07-26$4.70$4.86193,050
1983-07-25$4.83$4.99128,250
1983-07-22$4.89$5.0590,450
1983-07-21$4.89$5.05267,975
1983-07-20$4.74$4.90936,900
1983-07-19$4.48$4.63368,550
1983-07-18$4.52$4.67484,650
1983-07-15$4.72$4.88277,425
1983-07-14$4.83$4.99122,850
1983-07-13$4.89$5.05257,850
1983-07-12$4.85$5.01108,675
1983-07-11$4.96$5.13131,625
1983-07-08$5.07$5.24359,100
1983-07-07$5.19$5.36297,675
1983-07-06$5.17$5.34182,250
1983-07-05$5.07$5.24261,900
1983-07-01$5.11$5.28323,325
1983-06-30$4.96$5.13315,225
1983-06-29$4.93$5.09209,925
1983-06-28$4.85$5.01294,300
1983-06-27$4.89$5.051,310,175
1983-06-24$4.83$4.99479,925
1983-06-23$4.91$5.0762,100
1983-06-22$4.87$5.03349,650
1983-06-21$4.81$4.97260,550
1983-06-20$4.93$5.09205,200
1983-06-17$5.04$5.20727,650
1983-06-16$5.04$5.2063,450
1983-06-15$5.06$5.22118,125
1983-06-14$5.02$5.18545,400
1983-06-13$5.02$5.1894,500
1983-06-10$5.00$5.1694,500
1983-06-09$4.94$5.1174,925
1983-06-08$5.00$5.16153,225
1983-06-07$4.98$5.15149,850
1983-06-06$4.94$5.11155,925
1983-06-03$4.94$5.11116,100
1983-06-02$4.87$5.03494,775
1983-06-01$4.85$5.01159,300
1983-05-31$4.98$5.15130,950
1983-05-27$4.98$5.15944,325
1983-05-26$5.09$5.26257,850
1983-05-25$4.94$5.11120,825
1983-05-24$5.04$5.20179,550
1983-05-23$5.04$5.20247,725
1983-05-20$5.09$5.26362,475
1983-05-19$5.26$5.43151,200
1983-05-18$5.28$5.45132,300
1983-05-17$5.30$5.4785,725
1983-05-16$5.26$5.43415,800
1983-05-13$5.37$5.55164,700
1983-05-12$5.33$5.51154,575
1983-05-11$5.31$5.49206,550
1983-05-10$5.33$5.51294,975
1983-05-09$5.22$5.39353,700
1983-05-06$5.13$5.30133,650
1983-05-05$4.98$5.15815,400
1983-05-04$4.94$5.11355,050
1983-05-03$4.94$5.11353,700
1983-05-02$5.02$5.11120,825
1983-04-29$5.15$5.24596,700
1983-04-28$5.19$5.28336,825
1983-04-27$5.19$5.28144,450
1983-04-26$5.19$5.28282,150
1983-04-25$5.15$5.2495,175
1983-04-22$5.22$5.31420,525
1983-04-21$5.22$5.31340,875
1983-04-20$5.07$5.16687,825
1983-04-19$4.96$5.05215,325
1983-04-18$4.91$4.99406,350
1983-04-15$4.89$4.98270,000
1983-04-14$4.83$4.92461,025
1983-04-13$4.72$4.8193,825
1983-04-12$4.74$4.82164,025
1983-04-11$4.78$4.86170,775
1983-04-08$4.80$4.88110,700
1983-04-07$4.78$4.86146,475
1983-04-06$4.83$4.92187,650
1983-04-05$4.87$4.96140,400
1983-04-04$4.89$4.98537,300
1983-03-31$4.81$4.90151,200
1983-03-30$4.76$4.8431,725
1983-03-29$4.76$4.8478,975
1983-03-28$4.83$4.92130,275
1983-03-25$4.83$4.92328,725
1983-03-24$4.83$4.92563,625
1983-03-23$4.83$4.92121,500
1983-03-22$4.81$4.90253,125
1983-03-21$4.78$4.86184,950
1983-03-18$4.83$4.92117,450
1983-03-17$4.65$4.73190,350
1983-03-16$4.65$4.7376,275
1983-03-15$4.69$4.77213,975
1983-03-14$4.76$4.84105,300
1983-03-11$4.76$4.84127,575
1983-03-10$4.85$4.94130,275
1983-03-09$4.81$4.9089,100
1983-03-08$4.76$4.84168,075
1983-03-07$4.78$4.86280,125
1983-03-04$4.74$4.82101,925
1983-03-03$4.81$4.90436,050
1983-03-02$4.74$4.821,862,325
1983-03-01$4.56$4.64884,250
1983-02-28$4.57$4.66115,425
1983-02-25$4.56$4.64423,900
1983-02-24$4.46$4.54395,550
1983-02-23$4.54$4.62141,075
1983-02-22$4.48$4.56559,575
1983-02-18$4.48$4.56379,350
1983-02-17$4.44$4.52275,400
1983-02-16$4.39$4.47135,000
1983-02-15$4.41$4.491,156,950
1983-02-14$4.41$4.49198,450
1983-02-11$4.39$4.471,115,100
1983-02-10$4.41$4.49322,650
1983-02-09$4.41$4.49365,175
1983-02-08$4.46$4.54450,225
1983-02-07$4.46$4.54209,250
1983-02-04$4.43$4.50343,575
1983-02-03$4.44$4.52409,725
1983-02-02$4.37$4.45213,300
1983-02-01$4.26$4.3334,425
1983-01-31$4.30$4.37243,000
1983-01-28$4.33$4.41407,025
1983-01-27$4.26$4.26170,100
1983-01-26$4.31$4.31207,900
1983-01-25$4.30$4.30532,575
1983-01-24$4.11$4.11610,875
1983-01-21$4.15$4.15407,700
1983-01-20$4.26$4.2668,175
1983-01-19$4.31$4.31227,475
1983-01-18$4.37$4.3799,900
1983-01-17$4.41$4.41988,875
1983-01-14$4.31$4.31207,225
1983-01-13$4.30$4.30912,600
1983-01-12$4.30$4.30633,825
1983-01-11$4.22$4.22581,850
1983-01-10$4.28$4.28546,075
1983-01-07$4.22$4.221,212,975
1983-01-06$4.19$4.191,067,850
1983-01-05$4.09$4.09335,475
1983-01-04$4.07$4.07161,325
1983-01-03$4.06$4.0689,775