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 — 2021

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2021-12-31$300.56$725.57687,000
2021-12-30$299.83$723.80476,900
2021-12-29$300.68$725.85841,600
2021-12-28$297.00$716.97587,500
2021-12-27$298.43$720.42506,100
2021-12-23$292.41$705.891,378,000
2021-12-22$294.02$709.78714,200
2021-12-21$293.23$707.871,209,100
2021-12-20$290.52$701.331,461,900
2021-12-17$292.38$705.822,912,300
2021-12-16$295.13$712.461,544,000
2021-12-15$295.91$714.341,472,200
2021-12-14$294.15$710.091,298,200
2021-12-13$293.81$709.271,072,200
2021-12-10$293.74$709.101,412,600
2021-12-09$295.50$713.351,008,500
2021-12-08$300.94$726.48790,200
2021-12-07$300.71$725.93955,700
2021-12-06$297.48$718.13881,100
2021-12-03$292.89$707.051,431,700
2021-12-02$297.30$717.701,473,600
2021-12-01$291.11$702.751,434,900
2021-11-30$295.77$714.005,147,800
2021-11-29$296.69$716.221,250,300
2021-11-26$294.11$709.99881,900
2021-11-24$298.72$721.121,126,600
2021-11-23$297.00$716.971,148,500
2021-11-22$298.53$720.661,286,100
2021-11-19$296.79$716.461,313,100
2021-11-18$294.83$711.731,280,700
2021-11-17$299.81$723.751,311,500
2021-11-16$302.88$731.171,354,600
2021-11-15$300.44$725.281,108,700
2021-11-12$300.34$725.031,133,400
2021-11-11$299.26$722.431,164,000
2021-11-10$297.72$718.711,372,300
2021-11-09$297.53$718.251,369,300
2021-11-08$296.61$716.031,124,100
2021-11-05$288.53$696.521,467,200
2021-11-04$290.00$700.072,150,200
2021-11-03$294.89$711.881,882,000
2021-11-02$304.68$735.511,608,000
2021-11-01$306.83$740.701,335,900
2021-10-29$319.92$772.301,616,700
2021-10-28$321.08$773.871,905,800
2021-10-27$316.87$763.721,035,800
2021-10-26$320.24$771.85975,000
2021-10-25$320.11$771.53989,500
2021-10-22$320.82$773.24947,600
2021-10-21$319.41$769.841,320,500
2021-10-20$313.89$756.54941,300
2021-10-19$309.52$746.01869,300
2021-10-18$305.89$737.261,523,800
2021-10-15$309.30$745.481,248,900
2021-10-14$308.35$743.19930,300
2021-10-13$300.67$724.68774,000
2021-10-12$298.72$719.98788,300
2021-10-11$295.16$711.401,091,300
2021-10-08$294.50$709.811,005,700
2021-10-07$293.28$706.87969,300
2021-10-06$290.83$700.961,259,000
2021-10-05$292.20$704.261,048,100
2021-10-04$285.28$687.581,376,300
2021-10-01$291.08$701.561,415,300
2021-09-30$285.77$688.771,519,800
2021-09-29$291.25$701.97752,200
2021-09-28$289.25$697.151,166,700
2021-09-27$294.00$708.601,328,700
2021-09-24$299.17$721.06891,900
2021-09-23$298.29$718.941,405,300
2021-09-22$299.08$720.851,325,700
2021-09-21$290.93$701.201,044,800
2021-09-20$288.01$694.161,446,300
2021-09-17$289.23$697.101,683,300
2021-09-16$292.13$704.09815,400
2021-09-15$293.66$707.781,722,800
2021-09-14$291.69$703.031,358,800
2021-09-13$292.55$705.111,076,900
2021-09-10$292.30$704.50988,100
2021-09-09$292.38$704.701,495,000
2021-09-08$288.14$694.481,276,000
2021-09-07$287.98$694.09970,400
2021-09-03$291.43$702.41990,400
2021-09-02$290.57$700.331,949,800
2021-09-01$288.39$695.081,164,900
2021-08-31$286.86$691.391,554,100
2021-08-30$285.34$687.731,306,400
2021-08-27$285.13$687.221,391,600
2021-08-26$281.10$677.511,361,900
2021-08-25$280.97$677.201,540,300
2021-08-24$279.49$673.631,159,700
2021-08-23$278.51$671.271,670,300
2021-08-20$279.37$673.342,187,500
2021-08-19$276.07$665.391,392,000
2021-08-18$276.67$666.831,406,200
2021-08-17$280.80$676.791,758,200
2021-08-16$279.67$674.061,538,000
2021-08-13$277.24$668.211,618,100
2021-08-12$275.00$662.811,712,400
2021-08-11$273.17$658.401,537,400
2021-08-10$267.36$644.391,527,300
2021-08-09$263.84$635.911,447,500
2021-08-06$261.52$630.322,009,000
2021-08-05$262.40$632.442,883,900
2021-08-04$259.41$625.232,895,500
2021-08-03$264.06$636.443,144,200
2021-08-02$259.94$626.511,608,900
2021-07-30$260.03$626.733,738,000
2021-07-29$263.77$634.514,679,500
2021-07-28$262.29$630.956,286,300
2021-07-27$259.58$624.437,212,900
2021-07-26$251.56$605.1412,773,700
2021-07-23$232.48$559.24897,200
2021-07-22$232.51$559.311,724,100
2021-07-21$230.06$553.422,669,800
2021-07-20$228.79$550.371,206,400
2021-07-19$226.79$545.551,512,500
2021-07-16$231.73$557.442,054,300
2021-07-15$231.26$556.311,551,300
2021-07-14$230.43$554.311,332,900
2021-07-13$231.64$557.221,361,000
2021-07-12$232.79$559.991,317,600
2021-07-09$236.31$568.461,371,300
2021-07-08$235.21$565.811,066,200
2021-07-07$239.05$575.05956,200
2021-07-06$237.72$571.851,390,300
2021-07-02$239.59$576.35926,700
2021-07-01$238.68$574.161,235,800
2021-06-30$238.76$574.351,564,400
2021-06-29$242.90$584.311,023,800
2021-06-28$240.93$579.571,074,600
2021-06-25$243.71$586.263,825,100
2021-06-24$238.48$573.681,942,900
2021-06-23$235.54$566.601,316,300
2021-06-22$233.56$561.841,623,700
2021-06-21$234.00$562.902,467,400
2021-06-18$230.10$553.523,736,000
2021-06-17$232.84$560.117,322,900
2021-06-16$244.10$587.194,874,500
2021-06-15$251.82$605.771,359,300
2021-06-14$250.06$601.531,211,800
2021-06-11$250.11$601.651,184,900
2021-06-10$249.44$600.041,462,000
2021-06-09$245.75$591.161,256,600
2021-06-08$244.80$588.881,734,200
2021-06-07$247.52$595.421,111,800
2021-06-04$251.02$603.841,314,700
2021-06-03$251.51$605.021,535,000
2021-06-02$252.95$608.481,780,100
2021-06-01$253.24$609.182,095,100
2021-05-28$253.37$609.491,764,100
2021-05-27$253.88$610.722,060,000
2021-05-26$251.09$604.011,050,800
2021-05-25$252.31$606.941,074,500
2021-05-24$253.18$609.04737,300
2021-05-21$253.21$609.111,895,100
2021-05-20$254.65$612.571,861,900
2021-05-19$252.23$606.751,724,300
2021-05-18$254.21$611.511,691,500
2021-05-17$255.20$613.901,404,300
2021-05-14$254.24$611.59978,500
2021-05-13$252.00$606.201,413,100
2021-05-12$249.72$600.712,094,000
2021-05-11$254.12$611.301,667,100
2021-05-10$258.45$621.711,587,800
2021-05-07$258.52$621.881,642,100
2021-05-06$256.63$617.341,421,400
2021-05-05$254.36$611.881,622,400
2021-05-04$253.93$610.841,443,300
2021-05-03$252.46$607.301,613,800
2021-04-30$251.44$604.854,096,900
2021-04-29$239.27$574.351,925,100
2021-04-28$238.38$572.212,881,000
2021-04-27$233.79$561.191,518,300
2021-04-26$229.52$550.941,666,800
2021-04-23$230.89$554.231,018,600
2021-04-22$231.15$554.861,866,700
2021-04-21$233.50$560.501,265,900
2021-04-20$234.82$563.671,377,900
2021-04-19$235.83$566.091,259,400
2021-04-16$239.12$573.991,944,100
2021-04-15$236.50$567.701,232,700
2021-04-14$234.87$563.791,826,000
2021-04-13$239.24$574.281,389,100
2021-04-12$238.83$573.291,497,600
2021-04-09$237.00$568.901,226,700
2021-04-08$235.00$564.101,394,700
2021-04-07$236.27$567.151,020,300
2021-04-06$234.22$562.231,035,000
2021-04-05$233.98$561.651,164,500
2021-04-01$231.80$556.421,480,200
2021-03-31$230.11$552.361,633,200
2021-03-30$232.09$557.111,103,000
2021-03-29$233.63$560.811,599,400
2021-03-26$228.31$548.042,355,300
2021-03-25$225.03$540.172,002,300
2021-03-24$225.21$540.602,359,100
2021-03-23$223.98$537.651,982,000
2021-03-22$223.40$536.252,656,300
2021-03-19$222.90$535.052,655,200
2021-03-18$224.54$538.991,621,400
2021-03-17$225.79$541.991,922,400
2021-03-16$226.75$544.302,375,600
2021-03-15$225.50$541.301,789,800
2021-03-12$228.00$547.301,701,400
2021-03-11$228.00$547.301,480,500
2021-03-10$229.75$551.501,186,900
2021-03-09$231.50$555.701,478,100
2021-03-08$230.00$552.101,508,800
2021-03-05$232.76$558.721,322,200
2021-03-04$226.04$542.591,607,100
2021-03-03$228.01$547.321,647,100
2021-03-02$232.53$558.171,426,300
2021-03-01$232.51$558.121,644,300
2021-02-26$227.71$546.601,845,900
2021-02-25$230.96$554.401,518,100
2021-02-24$233.70$560.981,563,700
2021-02-23$231.28$555.172,044,800
2021-02-22$228.72$549.022,430,200
2021-02-19$228.34$548.111,342,900
2021-02-18$227.26$545.522,918,200
2021-02-17$229.20$550.181,315,500
2021-02-16$227.10$545.142,622,400
2021-02-12$228.04$547.391,451,200
2021-02-11$229.31$550.441,357,100
2021-02-10$226.55$543.821,901,000
2021-02-09$228.45$548.382,056,600
2021-02-08$225.64$541.631,442,300
2021-02-05$223.22$535.822,129,400
2021-02-04$208.10$499.531,529,500
2021-02-03$205.27$492.731,523,600
2021-02-02$210.18$504.521,866,000
2021-02-01$206.68$496.122,252,200
2021-01-29$203.10$487.531,619,400
2021-01-28$206.56$494.731,409,400
2021-01-27$206.80$495.302,015,700
2021-01-26$209.96$502.871,393,100
2021-01-25$208.66$499.761,191,100
2021-01-22$206.46$494.491,225,400
2021-01-21$209.47$501.701,677,600
2021-01-20$211.94$507.611,318,600
2021-01-19$209.16$500.951,668,900
2021-01-15$207.93$498.011,783,200
2021-01-14$206.62$494.871,404,700
2021-01-13$206.90$495.542,229,700
2021-01-12$202.48$484.951,835,500
2021-01-11$202.13$484.121,187,000
2021-01-08$205.22$491.521,294,500
2021-01-07$206.56$494.731,356,300
2021-01-06$206.78$495.251,732,100
2021-01-05$204.30$489.311,546,700
2021-01-04$204.55$489.911,702,200