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 — 2003

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2003-12-31$23.94$45.19756,400
2003-12-30$23.87$45.051,341,800
2003-12-29$23.80$44.92724,300
2003-12-26$23.39$44.15184,400
2003-12-24$23.33$44.03316,500
2003-12-23$23.45$44.26878,900
2003-12-22$23.12$43.64846,100
2003-12-19$23.14$43.681,457,200
2003-12-18$23.21$43.811,647,600
2003-12-17$22.61$42.681,125,500
2003-12-16$22.76$42.961,785,900
2003-12-15$22.39$42.261,246,300
2003-12-12$22.33$42.15661,500
2003-12-11$22.43$42.341,276,100
2003-12-10$21.89$41.321,195,000
2003-12-09$22.24$41.981,124,200
2003-12-08$22.44$42.35676,800
2003-12-05$22.55$42.561,532,500
2003-12-04$22.80$43.031,123,200
2003-12-03$22.36$42.201,044,300
2003-12-02$22.23$41.961,433,500
2003-12-01$22.20$41.90656,500
2003-11-28$21.94$41.41287,000
2003-11-26$22.04$41.60901,700
2003-11-25$21.90$41.341,088,400
2003-11-24$21.65$40.861,042,300
2003-11-21$21.29$40.181,769,400
2003-11-20$21.09$39.811,222,500
2003-11-19$21.31$40.221,338,000
2003-11-18$21.30$40.201,016,100
2003-11-17$21.41$40.41970,100
2003-11-14$21.28$40.17862,700
2003-11-13$21.46$40.50841,500
2003-11-12$21.40$40.391,141,900
2003-11-11$21.42$40.43539,200
2003-11-10$21.44$40.471,152,300
2003-11-07$21.36$40.321,295,900
2003-11-06$21.30$40.201,635,600
2003-11-05$21.29$40.182,323,300
2003-11-04$20.97$39.584,673,800
2003-11-03$22.14$41.791,470,800
2003-10-31$21.90$41.341,372,500
2003-10-30$22.05$41.34852,300
2003-10-29$22.05$41.341,154,300
2003-10-28$21.87$41.001,291,700
2003-10-27$21.58$40.451,195,300
2003-10-24$21.45$40.211,687,800
2003-10-23$21.45$40.211,559,400
2003-10-22$21.20$39.743,799,200
2003-10-21$21.45$40.211,635,200
2003-10-20$21.70$40.681,552,300
2003-10-17$21.69$40.661,944,200
2003-10-16$21.71$40.702,374,900
2003-10-15$21.10$39.551,745,100
2003-10-14$21.08$39.52903,200
2003-10-13$21.22$39.78421,100
2003-10-10$21.08$39.521,415,600
2003-10-09$21.56$40.42948,700
2003-10-08$21.47$40.25803,700
2003-10-07$21.24$39.821,692,900
2003-10-06$21.74$40.75637,900
2003-10-03$21.47$40.25995,200
2003-10-02$21.41$40.14804,200
2003-10-01$21.31$39.951,235,900
2003-09-30$20.85$39.091,626,300
2003-09-29$20.99$39.35657,300
2003-09-26$20.47$38.371,093,200
2003-09-25$20.79$38.97947,800
2003-09-24$20.99$39.351,225,200
2003-09-23$21.72$40.72399,900
2003-09-22$21.56$40.42855,700
2003-09-19$21.83$40.92915,800
2003-09-18$22.13$41.49586,500
2003-09-17$21.85$40.961,394,600
2003-09-16$22.15$41.521,696,900
2003-09-15$21.55$40.401,317,700
2003-09-12$21.50$40.302,648,300
2003-09-11$21.99$41.221,711,900
2003-09-10$22.64$42.441,602,100
2003-09-09$22.50$42.181,021,900
2003-09-08$22.24$41.691,496,000
2003-09-05$22.10$41.431,552,500
2003-09-04$22.27$41.751,212,800
2003-09-03$22.48$42.141,788,100
2003-09-02$22.42$42.031,370,900
2003-08-29$22.20$41.62828,300
2003-08-28$22.37$41.94813,900
2003-08-27$22.39$41.97732,200
2003-08-26$22.41$42.011,142,100
2003-08-25$22.33$41.86875,800
2003-08-22$22.35$41.901,791,200
2003-08-21$22.40$41.991,955,100
2003-08-20$22.46$42.10682,000
2003-08-19$22.45$42.091,483,700
2003-08-18$22.50$42.18763,500
2003-08-15$22.26$41.73449,100
2003-08-14$22.37$41.941,384,400
2003-08-13$21.96$41.171,633,600
2003-08-12$21.94$41.131,146,500
2003-08-11$21.80$40.871,098,000
2003-08-08$21.75$40.771,445,200
2003-08-07$21.73$40.743,744,600
2003-08-06$21.06$39.485,006,200
2003-08-05$22.80$42.741,111,100
2003-08-04$23.54$44.131,033,100
2003-08-01$23.61$44.261,541,300
2003-07-31$24.05$44.801,030,200
2003-07-30$24.00$44.71730,400
2003-07-29$24.00$44.711,047,000
2003-07-28$24.12$44.93978,600
2003-07-25$24.00$44.711,121,100
2003-07-24$23.47$43.721,304,300
2003-07-23$23.33$43.461,471,500
2003-07-22$23.29$43.391,900,400
2003-07-21$23.81$44.36831,300
2003-07-18$24.08$44.861,903,000
2003-07-17$23.55$43.871,829,300
2003-07-16$23.59$43.952,298,700
2003-07-15$23.83$44.392,307,700
2003-07-14$23.52$43.821,756,800
2003-07-11$23.19$43.202,563,100
2003-07-10$22.80$42.472,605,500
2003-07-09$23.80$44.34913,000
2003-07-08$24.01$44.731,078,800
2003-07-07$24.14$44.972,396,600
2003-07-03$23.53$43.83868,300
2003-07-02$23.44$43.672,601,100
2003-07-01$23.74$44.232,770,400
2003-06-30$24.08$44.861,038,800
2003-06-27$24.30$45.27872,900
2003-06-26$24.38$45.421,267,500
2003-06-25$24.68$45.98930,000
2003-06-24$25.14$46.83603,000
2003-06-23$24.74$46.09733,200
2003-06-20$25.33$47.191,225,900
2003-06-19$25.68$47.84757,800
2003-06-18$26.35$49.091,108,800
2003-06-17$26.45$49.27791,300
2003-06-16$26.46$49.291,069,300
2003-06-13$25.87$48.19811,600
2003-06-12$25.93$48.311,020,800
2003-06-11$26.16$48.73998,200
2003-06-10$25.76$47.991,433,800
2003-06-09$25.69$47.861,591,300
2003-06-06$26.45$49.271,815,600
2003-06-05$26.15$48.721,664,800
2003-06-04$25.41$47.341,595,000
2003-06-03$25.40$47.321,633,600
2003-06-02$25.85$48.161,281,100
2003-05-30$25.66$47.801,187,700
2003-05-29$25.46$47.431,377,100
2003-05-28$25.48$47.471,382,700
2003-05-27$25.10$46.761,581,800
2003-05-23$24.41$45.47636,700
2003-05-22$24.30$45.27968,000
2003-05-21$23.90$44.521,236,700
2003-05-20$23.61$43.981,017,300
2003-05-19$23.70$44.151,105,100
2003-05-16$24.46$45.571,662,200
2003-05-15$24.86$46.311,089,500
2003-05-14$24.90$46.391,399,900
2003-05-13$24.82$46.241,102,600
2003-05-12$24.60$45.831,147,300
2003-05-09$24.32$45.311,601,400
2003-05-08$23.50$43.781,620,100
2003-05-07$24.06$44.822,726,100
2003-05-06$24.02$44.752,435,300
2003-05-05$23.70$44.153,239,400
2003-05-02$22.57$42.051,258,100
2003-05-01$22.10$41.171,441,400
2003-04-30$22.16$41.282,509,600
2003-04-29$22.11$41.192,384,600
2003-04-28$22.55$41.731,213,100
2003-04-25$22.18$41.04952,100
2003-04-24$22.86$42.301,111,500
2003-04-23$23.26$43.041,898,300
2003-04-22$23.42$43.342,478,900
2003-04-21$22.14$40.971,048,400
2003-04-17$22.19$41.061,507,800
2003-04-16$22.15$40.991,549,900
2003-04-15$22.60$41.82959,000
2003-04-14$22.40$41.45954,700
2003-04-11$22.15$40.991,054,500
2003-04-10$21.94$40.60697,000
2003-04-09$21.93$40.581,020,200
2003-04-08$22.04$40.791,138,100
2003-04-07$22.14$40.971,261,000
2003-04-04$21.61$39.991,264,300
2003-04-03$21.55$39.882,735,700
2003-04-02$21.64$40.051,585,100
2003-04-01$20.88$38.641,054,000
2003-03-31$20.68$38.271,435,800
2003-03-28$20.47$37.88781,800
2003-03-27$20.06$37.121,073,300
2003-03-26$20.26$37.491,833,600
2003-03-25$20.58$38.08810,100
2003-03-24$20.22$37.421,861,700
2003-03-21$20.81$38.511,437,000
2003-03-20$19.99$36.991,496,500
2003-03-19$19.55$36.181,430,600
2003-03-18$19.31$35.731,272,400
2003-03-17$19.20$35.531,157,200
2003-03-14$18.60$34.421,052,900
2003-03-13$18.33$33.921,443,400
2003-03-12$17.64$32.641,523,000
2003-03-11$17.72$32.791,297,400
2003-03-10$18.03$33.371,275,100
2003-03-07$18.98$35.12817,700
2003-03-06$18.89$34.96948,000
2003-03-05$19.26$35.64699,200
2003-03-04$19.18$35.49786,500
2003-03-03$19.50$36.091,126,600
2003-02-28$19.45$35.991,011,000
2003-02-27$19.56$36.201,957,700
2003-02-26$19.23$35.591,028,500
2003-02-25$19.68$36.421,099,100
2003-02-24$19.91$36.84979,300
2003-02-21$20.35$37.661,055,900
2003-02-20$20.31$37.58987,500
2003-02-19$20.30$37.57908,900
2003-02-18$20.30$37.571,203,400
2003-02-14$19.84$36.711,796,600
2003-02-13$19.20$35.531,804,000
2003-02-12$19.42$35.943,369,800
2003-02-11$18.05$33.401,285,300
2003-02-10$18.47$34.181,511,500
2003-02-07$17.87$32.791,027,300
2003-02-06$18.14$33.29781,900
2003-02-05$18.37$33.711,145,300
2003-02-04$18.54$34.02754,600
2003-02-03$19.11$35.07745,900
2003-01-31$18.93$34.74977,900
2003-01-30$18.75$34.411,088,500
2003-01-29$19.28$35.382,494,500
2003-01-28$19.21$35.251,472,400
2003-01-27$18.78$34.461,425,000
2003-01-24$19.58$35.931,276,800
2003-01-23$20.25$37.16905,500
2003-01-22$19.38$35.56909,500
2003-01-21$20.00$36.701,510,900
2003-01-17$20.65$37.891,015,800
2003-01-16$20.56$37.731,155,000
2003-01-15$20.90$38.351,261,600
2003-01-14$21.01$38.551,464,200
2003-01-13$21.23$38.96862,200
2003-01-10$21.22$38.941,003,100
2003-01-09$21.13$38.772,367,100
2003-01-08$20.42$37.471,197,600
2003-01-07$20.34$37.321,084,200
2003-01-06$20.69$37.971,553,200
2003-01-03$20.12$36.921,569,700
2003-01-02$19.57$35.911,691,700