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 — 2023

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2023-12-29$291.02$713.18773,200
2023-12-28$289.31$708.991,086,700
2023-12-27$289.87$710.361,051,700
2023-12-26$289.59$709.68981,900
2023-12-22$291.67$714.771,882,200
2023-12-21$288.19$706.242,082,300
2023-12-20$294.12$720.782,768,400
2023-12-19$313.01$767.07968,200
2023-12-18$314.05$769.62872,400
2023-12-15$310.43$760.752,907,600
2023-12-14$318.03$779.371,927,200
2023-12-13$335.32$821.741,180,700
2023-12-12$332.45$814.71577,900
2023-12-11$329.46$807.38905,100
2023-12-08$324.10$794.25978,900
2023-12-07$321.69$788.34903,600
2023-12-06$319.58$783.171,323,400
2023-12-05$322.25$789.711,190,300
2023-12-04$326.11$799.17896,800
2023-12-01$326.77$800.79924,400
2023-11-30$328.49$805.001,497,700
2023-11-29$322.10$789.34645,600
2023-11-28$323.15$791.92636,300
2023-11-27$327.54$802.68978,300
2023-11-24$330.02$808.75250,500
2023-11-22$328.98$806.20618,800
2023-11-21$325.93$798.731,166,000
2023-11-20$331.20$811.65929,100
2023-11-17$329.74$808.071,419,100
2023-11-16$333.66$817.67866,600
2023-11-15$329.70$807.971,018,300
2023-11-14$333.32$816.84934,800
2023-11-13$333.61$817.55790,700
2023-11-10$334.04$818.61613,200
2023-11-09$331.78$813.07903,600
2023-11-08$327.54$802.68614,700
2023-11-07$326.34$799.74785,300
2023-11-06$325.52$797.73654,500
2023-11-03$323.28$792.24840,000
2023-11-02$321.25$787.26970,100
2023-11-01$311.75$763.98880,400
2023-10-31$309.40$758.221,369,900
2023-10-30$308.79$755.221,159,600
2023-10-27$306.88$750.551,899,200
2023-10-26$319.71$781.931,059,600
2023-10-25$319.65$781.78630,500
2023-10-24$319.77$782.07617,500
2023-10-23$313.48$766.69498,900
2023-10-20$314.12$768.26797,700
2023-10-19$319.08$780.39820,600
2023-10-18$325.00$794.87698,900
2023-10-17$327.54$801.08669,200
2023-10-16$327.74$801.57661,400
2023-10-13$326.10$797.56658,000
2023-10-12$324.46$793.54650,700
2023-10-11$327.32$800.54698,000
2023-10-10$325.49$796.061,061,700
2023-10-09$327.54$801.08582,000
2023-10-06$327.04$799.85456,100
2023-10-05$325.85$796.94490,300
2023-10-04$324.96$794.77617,500
2023-10-03$319.01$780.22675,900
2023-10-02$321.36$785.96661,700
2023-09-29$324.22$792.96639,900
2023-09-28$329.38$805.58426,600
2023-09-27$329.92$806.90467,900
2023-09-26$331.33$810.35475,600
2023-09-25$335.53$820.62507,000
2023-09-22$336.02$821.82705,100
2023-09-21$338.21$827.17837,100
2023-09-20$342.02$836.49442,000
2023-09-19$341.37$834.90472,900
2023-09-18$339.32$829.89568,400
2023-09-15$336.16$822.161,555,700
2023-09-14$338.75$828.49773,300
2023-09-13$335.34$820.15735,300
2023-09-12$334.99$819.30760,000
2023-09-11$333.15$814.80805,300
2023-09-08$333.45$815.53750,300
2023-09-07$334.39$817.83515,100
2023-09-06$331.64$811.11541,700
2023-09-05$329.45$805.75489,100
2023-09-01$334.34$817.71364,000
2023-08-31$333.39$815.39537,900
2023-08-30$334.63$818.42490,400
2023-08-29$333.20$814.92446,600
2023-08-28$331.51$810.79540,700
2023-08-25$332.07$812.161,041,500
2023-08-24$327.03$799.83425,500
2023-08-23$325.86$796.97486,000
2023-08-22$323.46$791.10450,200
2023-08-21$323.75$791.81723,800
2023-08-18$324.06$792.57977,400
2023-08-17$319.00$780.19746,200
2023-08-16$321.28$785.77950,000
2023-08-15$317.55$776.64569,600
2023-08-14$322.26$788.16574,200
2023-08-11$320.80$784.59505,400
2023-08-10$317.01$775.32633,900
2023-08-09$316.85$774.93711,200
2023-08-08$314.14$768.301,440,100
2023-08-07$318.28$778.43829,700
2023-08-04$315.06$770.55854,000
2023-08-03$317.32$776.081,464,900
2023-08-02$323.39$790.93870,800
2023-08-01$319.49$781.39709,100
2023-07-31$318.50$778.97811,000
2023-07-28$319.82$780.691,683,000
2023-07-27$337.06$822.78968,700
2023-07-26$341.25$833.00520,900
2023-07-25$343.21$837.79522,800
2023-07-24$342.57$836.23674,800
2023-07-21$340.90$832.152,135,200
2023-07-20$339.61$829.00941,000
2023-07-19$332.59$811.86950,000
2023-07-18$334.66$816.921,051,600
2023-07-17$337.49$823.83756,700
2023-07-14$336.51$821.43387,300
2023-07-13$336.85$822.26459,300
2023-07-12$335.83$819.77602,800
2023-07-11$339.22$828.05504,200
2023-07-10$337.52$823.90538,900
2023-07-07$335.41$818.75824,800
2023-07-06$337.13$822.95672,200
2023-07-05$338.46$826.19652,900
2023-07-03$338.69$826.75376,100
2023-06-30$345.20$842.65950,000
2023-06-29$342.12$835.131,027,500
2023-06-28$333.59$814.31643,000
2023-06-27$333.64$814.43571,200
2023-06-26$330.39$806.49788,600
2023-06-23$331.43$809.033,128,200
2023-06-22$333.39$813.82809,600
2023-06-21$329.85$805.18702,100
2023-06-20$328.95$802.98854,500
2023-06-16$329.38$804.031,464,200
2023-06-15$331.06$808.131,053,500
2023-06-14$322.97$788.38759,600
2023-06-13$318.92$778.50591,600
2023-06-12$318.06$776.40638,600
2023-06-09$314.32$767.27423,900
2023-06-08$312.89$763.78394,400
2023-06-07$312.27$762.26723,600
2023-06-06$312.38$762.53489,400
2023-06-05$312.37$762.51697,700
2023-06-02$313.80$766.00824,100
2023-06-01$312.03$761.68928,200
2023-05-31$308.29$752.551,054,600
2023-05-30$311.86$761.26536,100
2023-05-26$310.67$758.36575,800
2023-05-25$311.19$759.63774,300
2023-05-24$312.01$761.63643,000
2023-05-23$314.40$767.46885,700
2023-05-22$325.67$794.97639,800
2023-05-19$327.12$798.511,274,000
2023-05-18$324.23$791.46815,900
2023-05-17$322.23$786.581,340,200
2023-05-16$330.94$807.84545,300
2023-05-15$334.44$816.38561,800
2023-05-12$336.17$820.60564,700
2023-05-11$335.22$818.28539,700
2023-05-10$333.76$814.72647,800
2023-05-09$334.92$817.55780,700
2023-05-08$332.53$811.72919,600
2023-05-05$328.40$801.641,150,400
2023-05-04$320.70$782.84699,700
2023-05-03$320.34$781.96865,900
2023-05-02$320.91$783.35724,100
2023-05-01$323.43$789.50815,700
2023-04-28$325.18$793.781,451,100
2023-04-27$332.86$811.021,144,000
2023-04-26$327.36$797.62761,600
2023-04-25$330.38$804.98947,200
2023-04-24$331.58$807.90700,000
2023-04-21$333.60$812.832,028,600
2023-04-20$333.07$811.53941,900
2023-04-19$329.07$801.79687,300
2023-04-18$331.87$808.611,123,500
2023-04-17$329.81$803.59837,600
2023-04-14$324.48$790.60465,000
2023-04-13$324.99$791.85761,900
2023-04-12$321.76$783.98527,500
2023-04-11$320.90$781.88565,700
2023-04-10$319.95$779.57544,400
2023-04-06$322.05$784.68465,800
2023-04-05$321.56$783.49738,700
2023-04-04$318.85$776.89908,800
2023-04-03$317.08$772.571,135,200
2023-03-31$315.29$768.21606,700
2023-03-30$313.00$762.63517,100
2023-03-29$312.69$761.88507,000
2023-03-28$309.00$752.89573,500
2023-03-27$309.16$753.28726,300
2023-03-24$309.16$753.28895,900
2023-03-23$302.99$738.24957,000
2023-03-22$301.51$734.641,034,600
2023-03-21$304.83$742.731,001,700
2023-03-20$300.47$732.101,305,100
2023-03-17$296.59$722.652,935,300
2023-03-16$299.02$728.571,620,500
2023-03-15$285.85$696.481,514,600
2023-03-14$292.57$712.851,261,800
2023-03-13$293.44$714.971,135,800
2023-03-10$294.24$716.92694,500
2023-03-09$296.77$723.09948,400
2023-03-08$300.78$732.86627,500
2023-03-07$301.57$734.78546,900
2023-03-06$305.33$743.94575,100
2023-03-03$304.07$740.87755,900
2023-03-02$301.79$735.32797,000
2023-03-01$301.71$735.12944,700
2023-02-28$304.05$740.83900,800
2023-02-27$302.59$737.27559,500
2023-02-24$302.97$738.19675,700
2023-02-23$304.48$741.87590,100
2023-02-22$304.87$742.82622,300
2023-02-21$304.68$742.36846,900
2023-02-17$310.27$755.98592,200
2023-02-16$310.25$755.93758,700
2023-02-15$315.07$767.68467,800
2023-02-14$312.44$761.27763,100
2023-02-13$321.43$783.17515,700
2023-02-10$317.82$774.38673,300
2023-02-09$317.38$773.30884,200
2023-02-08$319.61$778.74661,000
2023-02-07$319.80$779.20635,200
2023-02-06$317.73$774.16796,900
2023-02-03$313.64$764.191,586,700
2023-02-02$323.00$787.001,531,900
2023-02-01$319.38$778.181,181,500
2023-01-31$318.68$776.47791,800
2023-01-30$317.54$772.33928,300
2023-01-27$319.30$776.61909,300
2023-01-26$324.84$790.09663,000
2023-01-25$322.92$785.42741,200
2023-01-24$324.34$788.87490,400
2023-01-23$325.99$792.88627,900
2023-01-20$325.40$791.45985,800
2023-01-19$318.96$775.781,154,500
2023-01-18$314.09$763.94905,200
2023-01-17$316.94$770.87757,700
2023-01-13$317.17$771.43677,500
2023-01-12$315.87$768.27731,200
2023-01-11$312.19$759.32520,900
2023-01-10$307.33$747.50558,200
2023-01-09$306.33$745.06709,100
2023-01-06$307.33$747.50688,200
2023-01-05$300.35$730.52578,600
2023-01-04$302.72$736.28587,000
2023-01-03$299.42$728.26531,400