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 — 2020

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2020-12-31$211.27$506.011,024,600——
2020-12-30$206.71$495.09734,600——
2020-12-29$206.91$495.57655,700——
2020-12-28$206.83$495.371,279,000——
2020-12-24$210.61$504.43430,000——
2020-12-23$207.90$497.941,051,300——
2020-12-22$209.23$501.122,203,600——
2020-12-21$209.15$500.932,415,500——
2020-12-18$205.49$492.163,485,200——
2020-12-17$211.30$506.082,148,500——
2020-12-16$209.21$501.071,330,300——
2020-12-15$208.03$498.251,794,400——
2020-12-14$203.96$488.502,202,200——
2020-12-11$204.11$488.861,453,300——
2020-12-10$206.24$493.961,685,000——
2020-12-09$207.05$495.901,578,400——
2020-12-08$209.59$501.981,497,100——
2020-12-07$207.20$496.261,450,400——
2020-12-04$211.60$506.801,094,400——
2020-12-03$210.18$503.401,288,500——
2020-12-02$209.08$500.761,326,800——
2020-12-01$210.69$504.621,690,300——
2020-11-30$204.89$490.732,077,800——
2020-11-27$206.58$494.77632,400——
2020-11-25$208.07$498.341,030,800——
2020-11-24$207.93$498.011,650,800——
2020-11-23$203.18$486.631,447,700——
2020-11-20$198.67$475.831,796,600——
2020-11-19$202.92$486.011,338,000——
2020-11-18$203.36$487.061,389,800——
2020-11-17$207.19$496.241,680,400——
2020-11-16$208.03$498.251,913,900——
2020-11-13$204.44$489.651,519,900——
2020-11-12$199.96$478.921,663,900——
2020-11-11$201.42$482.421,835,800——
2020-11-10$200.08$479.212,425,400——
2020-11-09$192.91$462.032,548,300——
2020-11-06$190.35$455.901,486,800——
2020-11-05$185.38$444.001,600,400——
2020-11-04$183.48$439.453,127,800——
2020-11-03$179.96$431.022,302,600——
2020-11-02$180.64$432.652,451,100——
2020-10-30$184.01$440.723,079,700——
2020-10-29$186.80$446.301,867,000——
2020-10-28$194.70$465.171,650,300——
2020-10-27$199.48$476.591,067,300——
2020-10-26$202.17$483.021,389,700——
2020-10-23$207.31$495.30778,900——
2020-10-22$207.47$495.68767,400——
2020-10-21$206.44$493.22863,600——
2020-10-20$206.36$493.031,383,500——
2020-10-19$209.19$499.79856,600——
2020-10-16$212.88$508.611,706,100——
2020-10-15$212.78$508.371,058,500——
2020-10-14$210.09$501.941,176,300——
2020-10-13$210.89$503.851,279,300——
2020-10-12$214.52$512.531,848,000——
2020-10-09$209.19$499.79987,400——
2020-10-08$208.07$497.12894,000——
2020-10-07$208.37$497.831,084,600——
2020-10-06$205.65$491.33986,700——
2020-10-05$206.51$493.39907,700——
2020-10-02$205.52$491.02877,400——
2020-10-01$206.18$492.601,391,900——
2020-09-30$206.30$492.891,583,900——
2020-09-29$205.09$490.001,340,300——
2020-09-28$203.43$486.031,568,800——
2020-09-25$196.36$469.141,217,800——
2020-09-24$195.68$467.511,975,200——
2020-09-23$200.41$478.822,258,600——
2020-09-22$199.97$477.761,936,600——
2020-09-21$199.20$475.921,724,800——
2020-09-18$201.00$480.221,459,700——
2020-09-17$201.67$481.831,202,400——
2020-09-16$202.53$483.881,135,400——
2020-09-15$202.00$482.611,013,400——
2020-09-14$201.96$482.521,053,600——
2020-09-11$201.54$481.511,189,200——
2020-09-10$202.05$482.731,594,500——
2020-09-09$203.63$486.511,155,200——
2020-09-08$198.00$473.061,679,700——
2020-09-04$202.74$484.381,093,400——
2020-09-03$203.85$487.032,031,800——
2020-09-02$209.73$501.081,805,500——
2020-09-01$202.65$484.171,441,700——
2020-08-31$199.99$477.811,465,100——
2020-08-28$200.11$478.101,280,400——
2020-08-27$199.58$476.83948,700——
2020-08-26$195.44$466.941,504,900——
2020-08-25$192.37$459.612,126,800——
2020-08-24$190.17$454.352,116,900——
2020-08-21$193.64$462.641,179,500——
2020-08-20$197.01$470.691,371,300——
2020-08-19$197.57$472.031,290,600——
2020-08-18$196.42$469.281,172,300——
2020-08-17$196.72$470.001,504,300——
2020-08-14$197.20$471.151,242,900——
2020-08-13$194.67$465.104,634,100——
2020-08-12$192.13$459.031,690,300——
2020-08-11$193.55$462.431,671,300——
2020-08-10$192.84$460.731,012,500——
2020-08-07$195.44$466.941,134,500——
2020-08-06$195.61$467.351,386,400——
2020-08-05$198.53$474.321,531,800——
2020-08-04$199.64$476.981,385,700——
2020-08-03$200.23$478.391,743,700——
2020-07-31$205.22$490.312,318,300——
2020-07-30$207.43$494.541,442,900——
2020-07-29$205.80$490.651,462,800——
2020-07-28$205.74$490.511,395,300——
2020-07-27$207.02$493.561,315,200——
2020-07-24$207.17$493.921,022,900——
2020-07-23$207.37$494.391,342,600——
2020-07-22$207.86$495.561,274,300——
2020-07-21$206.22$491.65954,000——
2020-07-20$203.90$486.121,136,800——
2020-07-17$203.66$485.551,229,700——
2020-07-16$202.67$483.191,423,800——
2020-07-15$200.99$479.181,175,900——
2020-07-14$199.05$474.561,190,400——
2020-07-13$197.06$469.811,168,400——
2020-07-10$197.56$471.00959,200——
2020-07-09$194.46$463.611,381,700——
2020-07-08$195.54$466.191,844,800——
2020-07-07$192.46$458.851,566,900——
2020-07-06$192.70$459.421,242,500——
2020-07-02$191.45$456.441,241,400——
2020-07-01$191.14$455.701,065,700——
2020-06-30$192.60$459.181,758,500——
2020-06-29$188.22$448.741,154,400——
2020-06-26$190.02$453.032,459,500——
2020-06-25$194.39$463.451,883,500——
2020-06-24$187.53$447.092,358,200——
2020-06-23$189.01$450.621,815,800——
2020-06-22$188.78$450.071,332,700——
2020-06-19$186.79$445.332,787,200——
2020-06-18$190.99$455.341,172,800——
2020-06-17$191.93$457.581,545,800——
2020-06-16$186.12$443.731,161,900——
2020-06-15$184.10$438.911,631,500——
2020-06-12$181.95$433.791,378,400——
2020-06-11$180.65$430.691,768,000——
2020-06-10$193.18$460.561,667,800——
2020-06-09$194.29$463.211,328,200——
2020-06-08$198.01$472.081,525,000——
2020-06-05$200.20$477.301,592,000——
2020-06-04$197.99$472.03623,600——
2020-06-03$198.97$474.371,225,600——
2020-06-02$194.83$464.501,181,300——
2020-06-01$196.14$467.621,182,900——
2020-05-29$196.95$469.553,211,400——
2020-05-28$198.69$473.701,073,600——
2020-05-27$197.84$471.671,565,600——
2020-05-26$195.06$465.041,262,700——
2020-05-22$191.97$457.68940,800——
2020-05-21$193.33$460.921,183,100——
2020-05-20$195.27$465.551,029,600——
2020-05-19$195.54$466.191,031,400——
2020-05-18$196.84$469.291,509,500——
2020-05-15$191.67$456.962,127,500——
2020-05-14$193.93$462.351,170,600——
2020-05-13$190.23$453.533,089,500——
2020-05-12$193.22$460.661,451,400——
2020-05-11$192.01$457.771,470,300——
2020-05-08$189.76$452.41854,300——
2020-05-07$184.83$440.661,135,100——
2020-05-06$177.24$422.561,133,600——
2020-05-05$182.93$436.131,144,700——
2020-05-04$177.68$423.611,570,900——
2020-05-01$178.21$424.872,029,400——
2020-04-30$172.67$411.662,624,900——
2020-04-29$170.61$405.701,857,000——
2020-04-28$172.33$409.791,522,700——
2020-04-27$172.93$411.221,463,400——
2020-04-24$175.54$417.431,271,700——
2020-04-23$174.77$415.601,617,000——
2020-04-22$181.59$431.81813,800——
2020-04-21$178.18$423.711,015,800——
2020-04-20$185.69$441.561,128,700——
2020-04-17$190.81$453.741,407,300——
2020-04-16$186.24$442.871,239,300——
2020-04-15$183.94$437.401,261,800——
2020-04-14$194.03$461.401,234,900——
2020-04-13$186.38$443.20919,000——
2020-04-09$192.05$456.691,786,500——
2020-04-08$187.96$446.962,284,200——
2020-04-07$175.92$418.332,128,700——
2020-04-06$173.15$411.741,537,900——
2020-04-03$154.14$366.541,671,100——
2020-04-02$157.26$373.961,524,400——
2020-04-01$153.68$365.451,330,300——
2020-03-31$165.04$392.461,704,000——
2020-03-30$171.03$406.701,996,800——
2020-03-27$165.42$393.362,180,000——
2020-03-26$165.70$394.032,574,300——
2020-03-25$163.15$387.962,845,800——
2020-03-24$166.04$394.842,441,600——
2020-03-23$145.48$345.953,027,700——
2020-03-20$149.55$355.623,037,800——
2020-03-19$151.08$359.262,627,000——
2020-03-18$155.92$370.772,391,100——
2020-03-17$164.47$391.103,626,100——
2020-03-16$170.53$405.513,392,700——
2020-03-13$177.45$421.974,007,000——
2020-03-12$173.49$412.554,328,600——
2020-03-11$184.98$439.884,879,100——
2020-03-10$183.10$435.404,736,400——
2020-03-09$178.93$425.496,143,500——
2020-03-06$214.81$510.811,492,700——
2020-03-05$216.78$515.491,283,600——
2020-03-04$225.48$536.181,204,800——
2020-03-03$214.80$510.791,252,000——
2020-03-02$221.06$525.672,083,000——
2020-02-28$208.00$494.622,363,700——
2020-02-27$212.22$504.651,572,200——
2020-02-26$222.49$529.071,093,700——
2020-02-25$222.44$528.951,562,000——
2020-02-24$223.30$531.001,250,300——
2020-02-21$231.51$550.52890,700——
2020-02-20$234.33$557.23791,200——
2020-02-19$237.43$564.601,422,500——
2020-02-18$235.27$559.46760,200——
2020-02-14$235.73$560.56585,500——
2020-02-13$234.58$557.82790,300——
2020-02-12$230.92$549.12589,000——
2020-02-11$231.22$549.83822,000——
2020-02-10$231.07$549.48688,400——
2020-02-07$230.13$547.24918,900——
2020-02-06$229.60$545.98873,100——
2020-02-05$228.30$542.891,025,800——
2020-02-04$226.64$538.941,504,100——
2020-02-03$225.03$535.111,193,200——
2020-01-31$220.25$523.751,383,500——
2020-01-30$219.63$521.231,213,300——
2020-01-29$216.58$513.99839,800——
2020-01-28$216.56$513.94982,200——
2020-01-27$211.95$503.00493,700——
2020-01-24$213.42$506.49639,600——
2020-01-23$213.10$505.73891,600——
2020-01-22$211.91$502.90634,900——
2020-01-21$211.26$501.361,045,300——
2020-01-17$211.85$502.76943,300——
2020-01-16$210.15$498.73548,800——
2020-01-15$209.03$496.07534,500——
2020-01-14$207.65$492.79606,500——
2020-01-13$209.07$496.16547,100——
2020-01-10$208.06$493.77448,400——
2020-01-09$209.10$496.24528,900——
2020-01-08$207.65$492.79691,700——
2020-01-07$206.80$490.78495,500——
2020-01-06$208.57$494.98740,600——
2020-01-03$207.97$493.55501,700——
2020-01-02$208.79$495.50830,100——