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 — 2004

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2004-12-31$23.86$46.15669,700
2004-12-30$23.64$45.73611,100
2004-12-29$23.64$45.73501,200
2004-12-28$23.49$45.44595,200
2004-12-27$23.10$44.681,010,800
2004-12-23$23.35$45.16600,600
2004-12-22$23.29$45.05988,400
2004-12-21$23.16$44.801,491,100
2004-12-20$23.13$44.74914,800
2004-12-17$23.25$44.971,701,300
2004-12-16$23.18$44.841,184,400
2004-12-15$23.33$45.131,699,200
2004-12-14$23.00$44.492,617,200
2004-12-13$22.40$43.331,862,300
2004-12-10$22.56$43.641,772,300
2004-12-09$22.41$43.352,177,300
2004-12-08$22.05$42.651,346,000
2004-12-07$21.98$42.512,376,000
2004-12-06$22.00$42.552,553,500
2004-12-03$22.26$43.062,416,900
2004-12-02$21.77$42.111,938,500
2004-12-01$21.77$42.112,224,800
2004-11-30$21.12$40.851,994,100
2004-11-29$21.01$40.641,177,200
2004-11-26$21.02$40.66946,800
2004-11-24$21.13$40.871,745,800
2004-11-23$20.67$39.982,923,500
2004-11-22$20.72$40.082,841,200
2004-11-19$20.45$39.562,224,800
2004-11-18$20.82$40.271,316,300
2004-11-17$20.77$40.172,072,500
2004-11-16$20.88$40.392,196,100
2004-11-15$20.85$40.331,349,100
2004-11-12$20.66$39.963,045,200
2004-11-11$20.82$40.271,525,300
2004-11-10$20.85$40.331,731,700
2004-11-09$20.91$40.452,224,900
2004-11-08$20.70$40.042,442,700
2004-11-05$20.60$39.852,066,600
2004-11-04$20.75$40.141,428,500
2004-11-03$20.52$39.693,263,600
2004-11-02$20.46$39.573,256,000
2004-11-01$20.65$39.943,704,800
2004-10-29$20.41$39.486,532,900
2004-10-28$21.52$41.342,526,400
2004-10-27$21.61$41.512,991,900
2004-10-26$21.54$41.379,023,700
2004-10-25$19.64$37.725,445,800
2004-10-22$19.80$38.033,920,700
2004-10-21$19.26$36.996,257,700
2004-10-20$19.57$37.596,902,000
2004-10-19$19.20$36.8810,654,400
2004-10-18$21.27$40.857,159,500
2004-10-15$21.74$41.768,521,400
2004-10-14$23.18$44.5214,114,100
2004-10-13$27.66$53.131,015,200
2004-10-12$27.75$53.301,640,900
2004-10-11$28.08$53.94827,200
2004-10-08$28.19$54.15838,800
2004-10-07$28.45$54.65875,800
2004-10-06$28.71$55.15828,200
2004-10-05$28.52$54.781,640,000
2004-10-04$28.71$55.151,722,400
2004-10-01$28.80$55.321,851,400
2004-09-30$28.74$55.203,304,800
2004-09-29$27.86$53.51428,500
2004-09-28$27.89$53.57556,500
2004-09-27$27.81$53.421,058,000
2004-09-24$28.02$53.821,334,200
2004-09-23$27.44$52.71624,300
2004-09-22$27.48$52.78928,400
2004-09-21$27.91$53.61737,700
2004-09-20$27.68$53.17335,200
2004-09-17$27.64$53.09693,600
2004-09-16$27.58$52.97773,600
2004-09-15$27.46$52.74801,000
2004-09-14$27.56$52.94521,700
2004-09-13$27.75$53.30580,500
2004-09-10$27.44$52.71416,300
2004-09-09$27.42$52.67657,800
2004-09-08$27.38$52.591,166,900
2004-09-07$27.11$52.071,056,500
2004-09-03$26.64$51.17705,000
2004-09-02$26.68$51.25958,300
2004-09-01$26.11$50.15970,000
2004-08-31$25.95$49.841,016,700
2004-08-30$25.88$49.71548,300
2004-08-27$25.73$49.421,982,000
2004-08-26$25.71$49.382,140,800
2004-08-25$25.58$49.13715,900
2004-08-24$25.47$48.92374,900
2004-08-23$25.56$49.09632,200
2004-08-20$25.45$48.881,299,300
2004-08-19$25.36$48.71603,500
2004-08-18$25.31$48.611,236,500
2004-08-17$25.04$48.10919,400
2004-08-16$25.03$48.081,084,500
2004-08-13$24.59$47.231,196,400
2004-08-12$24.81$47.65797,600
2004-08-11$25.02$48.061,054,500
2004-08-10$25.07$48.151,623,200
2004-08-09$24.94$47.90935,000
2004-08-06$25.12$48.251,191,300
2004-08-05$25.50$48.983,028,800
2004-08-04$26.64$51.17765,700
2004-08-03$26.74$51.36589,700
2004-08-02$26.81$51.50946,800
2004-07-30$26.44$50.79928,500
2004-07-29$26.80$51.191,040,100
2004-07-28$26.43$50.481,212,700
2004-07-27$25.99$49.64660,900
2004-07-26$26.11$49.871,059,000
2004-07-23$25.93$49.531,474,800
2004-07-22$26.01$49.682,089,400
2004-07-21$26.77$51.131,001,700
2004-07-20$26.78$51.151,163,800
2004-07-19$26.95$51.48999,500
2004-07-16$26.90$51.38987,000
2004-07-15$27.08$51.721,178,000
2004-07-14$27.71$52.93638,100
2004-07-13$27.89$53.27792,800
2004-07-12$27.68$52.87657,100
2004-07-09$27.30$52.14556,100
2004-07-08$27.25$52.05813,000
2004-07-07$27.60$52.721,000,000
2004-07-06$27.59$52.701,026,100
2004-07-02$28.15$53.77446,600
2004-07-01$28.06$53.601,151,200
2004-06-30$28.47$54.381,088,800
2004-06-29$28.15$53.771,027,700
2004-06-28$28.20$53.861,441,800
2004-06-25$28.40$54.241,989,700
2004-06-24$28.17$53.81683,200
2004-06-23$28.43$54.301,107,600
2004-06-22$28.25$53.96951,700
2004-06-21$28.05$53.58680,900
2004-06-18$28.41$54.26934,900
2004-06-17$28.22$53.90826,000
2004-06-16$28.09$53.651,327,700
2004-06-15$28.41$54.261,062,200
2004-06-14$28.36$54.171,365,900
2004-06-10$28.46$54.36580,300
2004-06-09$28.40$54.241,083,000
2004-06-08$28.72$54.861,077,900
2004-06-07$28.40$54.241,220,400
2004-06-04$28.34$54.13842,800
2004-06-03$28.10$53.67937,400
2004-06-02$27.96$53.401,427,500
2004-06-01$27.66$52.83646,000
2004-05-28$27.63$52.771,345,700
2004-05-27$27.37$52.28869,700
2004-05-26$27.34$52.22964,300
2004-05-25$26.95$51.481,028,800
2004-05-24$26.40$50.421,210,300
2004-05-21$26.41$50.441,206,600
2004-05-20$26.30$50.231,222,200
2004-05-19$25.76$49.201,583,300
2004-05-18$25.63$48.95511,600
2004-05-17$25.51$48.72829,900
2004-05-14$25.81$49.30969,400
2004-05-13$25.96$49.58944,600
2004-05-12$26.05$49.76991,800
2004-05-11$25.95$49.57854,000
2004-05-10$25.84$49.351,839,800
2004-05-07$25.44$48.591,113,400
2004-05-06$26.07$49.791,671,000
2004-05-05$26.13$49.911,570,100
2004-05-04$26.78$51.151,746,300
2004-05-03$26.46$50.541,578,900
2004-04-30$26.06$49.781,363,200
2004-04-29$26.20$49.761,771,500
2004-04-28$26.36$50.061,602,500
2004-04-27$26.61$50.533,014,800
2004-04-26$26.49$50.314,331,600
2004-04-23$27.82$52.834,359,600
2004-04-22$28.76$54.62905,500
2004-04-21$28.08$53.33865,200
2004-04-20$28.01$53.191,651,000
2004-04-19$28.55$54.221,082,900
2004-04-16$28.44$54.011,013,000
2004-04-15$27.99$53.161,263,000
2004-04-14$27.93$53.042,108,200
2004-04-13$28.13$53.421,067,600
2004-04-12$28.77$54.64389,200
2004-04-08$28.70$54.501,151,900
2004-04-07$28.65$54.411,429,000
2004-04-06$28.99$55.051,782,500
2004-04-05$28.90$54.881,179,800
2004-04-02$28.17$53.50934,200
2004-04-01$28.13$53.421,322,900
2004-03-31$27.91$53.00679,300
2004-03-30$27.90$52.981,052,700
2004-03-29$27.95$53.081,057,800
2004-03-26$27.77$52.74817,100
2004-03-25$27.60$52.411,693,400
2004-03-24$27.16$51.581,810,300
2004-03-23$26.77$50.841,354,800
2004-03-22$26.66$50.631,050,100
2004-03-19$26.85$50.991,161,400
2004-03-18$27.04$51.35953,400
2004-03-17$26.97$51.22754,800
2004-03-16$26.81$50.91917,000
2004-03-15$26.56$50.441,042,000
2004-03-12$26.82$50.93738,700
2004-03-11$26.42$50.171,004,600
2004-03-10$27.06$51.391,186,700
2004-03-09$27.76$52.722,818,600
2004-03-08$27.60$52.411,113,600
2004-03-05$27.12$51.501,700,200
2004-03-04$26.33$50.00736,700
2004-03-03$26.56$50.44853,200
2004-03-02$26.31$49.96801,900
2004-03-01$26.42$50.17804,800
2004-02-27$26.23$49.81665,900
2004-02-26$25.85$49.09761,300
2004-02-25$26.00$49.38891,700
2004-02-24$25.83$49.051,303,500
2004-02-23$25.97$49.32817,600
2004-02-20$26.29$49.93856,500
2004-02-19$26.17$49.701,016,800
2004-02-18$26.14$49.64603,100
2004-02-17$26.27$49.89858,100
2004-02-13$25.79$48.981,313,900
2004-02-12$25.74$48.881,655,700
2004-02-11$25.37$48.182,274,400
2004-02-10$24.92$47.33739,300
2004-02-09$24.80$47.10927,200
2004-02-06$24.58$46.682,388,500
2004-02-05$24.50$46.241,025,600
2004-02-04$24.29$45.851,261,700
2004-02-03$24.38$46.021,512,800
2004-02-02$24.70$46.62900,500
2004-01-30$24.57$46.371,122,700
2004-01-29$24.45$46.151,328,100
2004-01-28$24.39$46.041,910,600
2004-01-27$24.95$47.091,150,000
2004-01-26$24.94$47.071,269,600
2004-01-23$24.91$47.02729,300
2004-01-22$24.83$46.871,020,800
2004-01-21$24.55$46.341,702,600
2004-01-20$24.34$45.941,221,300
2004-01-16$24.40$46.051,014,000
2004-01-15$24.24$45.751,508,100
2004-01-14$24.14$45.561,063,100
2004-01-13$23.95$45.201,575,700
2004-01-12$23.75$44.832,062,000
2004-01-09$23.56$44.471,467,800
2004-01-08$23.99$45.281,438,600
2004-01-07$24.31$45.88894,300
2004-01-06$24.32$45.901,234,500
2004-01-05$24.49$46.22837,400
2004-01-02$24.06$45.411,258,900