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 — 2008

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2008-12-31$45.68$94.723,002,000
2008-12-30$45.94$95.263,221,200
2008-12-29$45.05$93.422,733,800
2008-12-26$44.61$92.511,153,100
2008-12-24$44.48$92.24936,600
2008-12-23$44.30$91.862,376,500
2008-12-22$44.43$92.133,333,100
2008-12-19$43.38$89.965,116,600
2008-12-18$42.46$88.053,173,500
2008-12-17$42.37$87.863,278,900
2008-12-16$42.87$88.903,257,300
2008-12-15$40.82$84.651,953,800
2008-12-12$40.94$84.902,836,600
2008-12-11$40.58$84.152,818,500
2008-12-10$42.40$87.922,547,900
2008-12-09$42.46$88.054,221,100
2008-12-08$44.31$91.882,800,400
2008-12-05$43.90$91.035,123,900
2008-12-04$42.47$88.074,222,000
2008-12-03$43.80$90.834,754,700
2008-12-02$43.77$90.764,583,300
2008-12-01$43.09$89.354,583,200
2008-11-28$45.30$93.941,308,400
2008-11-26$45.44$94.233,207,900
2008-11-25$44.43$92.133,828,200
2008-11-24$44.19$91.646,692,600
2008-11-21$42.18$87.477,157,800
2008-11-20$40.44$83.868,699,300
2008-11-19$42.74$88.635,448,300
2008-11-18$42.84$88.843,884,500
2008-11-17$41.47$85.993,758,900
2008-11-14$42.16$87.435,962,100
2008-11-13$40.60$84.195,433,000
2008-11-12$39.87$82.683,077,600
2008-11-11$40.11$83.173,103,700
2008-11-10$39.77$82.472,213,500
2008-11-07$40.25$83.472,951,500
2008-11-06$40.16$83.283,617,800
2008-11-05$41.49$86.043,912,000
2008-11-04$42.80$88.753,059,400
2008-11-03$41.76$86.602,152,200
2008-10-31$42.30$87.729,304,000
2008-10-30$38.10$79.013,999,800
2008-10-29$38.41$79.346,637,700
2008-10-28$36.50$75.393,860,300
2008-10-27$34.55$71.372,768,900
2008-10-24$34.85$71.984,438,800
2008-10-23$35.59$73.516,678,300
2008-10-22$36.75$75.913,599,700
2008-10-21$38.05$78.594,045,800
2008-10-20$37.96$78.413,512,200
2008-10-17$36.91$76.243,546,000
2008-10-16$37.55$77.564,879,400
2008-10-15$37.61$77.692,848,700
2008-10-14$39.97$82.564,315,300
2008-10-13$39.91$82.444,084,400
2008-10-10$39.98$82.586,300,800
2008-10-09$39.60$81.805,333,200
2008-10-08$42.42$87.625,080,100
2008-10-07$39.18$80.933,600,600
2008-10-06$42.35$87.483,460,200
2008-10-03$44.06$91.012,435,500
2008-10-02$43.38$89.602,479,500
2008-10-01$42.76$88.322,268,500
2008-09-30$44.96$92.873,099,000
2008-09-29$43.71$90.293,187,800
2008-09-26$46.54$96.132,077,400
2008-09-25$47.51$98.143,227,400
2008-09-24$45.34$93.652,660,500
2008-09-23$46.67$96.401,992,300
2008-09-22$46.63$96.322,139,200
2008-09-19$46.31$95.667,030,500
2008-09-18$47.49$98.096,914,000
2008-09-17$45.22$93.406,888,800
2008-09-16$46.75$96.575,512,900
2008-09-15$45.41$93.803,975,900
2008-09-12$46.47$95.993,049,400
2008-09-11$46.58$96.213,696,700
2008-09-10$46.14$95.312,552,100
2008-09-09$45.93$94.873,493,500
2008-09-08$47.76$98.652,836,300
2008-09-05$46.85$96.771,949,800
2008-09-04$46.49$96.031,819,500
2008-09-03$47.65$98.421,872,600
2008-09-02$47.51$98.142,188,800
2008-08-29$47.49$98.093,162,100
2008-08-28$47.98$99.112,980,700
2008-08-27$47.81$98.752,597,400
2008-08-26$47.97$99.092,382,400
2008-08-25$47.25$97.601,621,300
2008-08-22$47.92$98.982,103,000
2008-08-21$46.70$96.461,406,100
2008-08-20$46.79$96.652,150,000
2008-08-19$46.69$96.443,004,600
2008-08-18$46.85$96.772,531,100
2008-08-15$47.40$97.911,770,700
2008-08-14$46.87$96.811,896,800
2008-08-13$46.59$96.232,445,300
2008-08-12$47.07$97.232,862,100
2008-08-11$47.58$98.283,718,300
2008-08-08$47.58$98.283,284,500
2008-08-07$46.55$96.153,223,300
2008-08-06$47.00$97.082,782,400
2008-08-05$46.88$96.832,585,100
2008-08-04$45.27$93.512,125,800
2008-08-01$44.83$92.603,977,400
2008-07-31$45.80$94.602,795,400
2008-07-30$45.38$93.742,925,500
2008-07-29$45.00$92.643,367,000
2008-07-28$43.50$89.552,711,600
2008-07-25$44.69$92.002,282,900
2008-07-24$44.45$91.513,365,400
2008-07-23$46.16$95.033,322,100
2008-07-22$46.16$95.033,490,300
2008-07-21$44.99$92.622,829,700
2008-07-18$45.87$94.435,913,600
2008-07-17$47.66$98.123,546,500
2008-07-16$46.81$96.373,115,700
2008-07-15$45.23$93.113,181,300
2008-07-14$45.41$93.482,582,200
2008-07-11$45.80$94.292,833,100
2008-07-10$45.51$93.693,174,000
2008-07-09$45.57$93.814,509,100
2008-07-08$45.95$94.605,384,600
2008-07-07$45.92$94.533,337,600
2008-07-03$46.65$96.041,166,500
2008-07-02$46.67$96.081,778,800
2008-07-01$46.92$96.592,982,000
2008-06-30$45.94$94.582,099,300
2008-06-27$46.43$95.582,307,500
2008-06-26$45.65$93.982,475,500
2008-06-25$46.80$96.352,772,900
2008-06-24$47.18$97.132,164,100
2008-06-23$47.22$97.211,705,600
2008-06-20$47.07$96.902,796,300
2008-06-19$47.91$98.632,713,900
2008-06-18$47.16$97.091,764,800
2008-06-17$47.62$98.031,563,200
2008-06-16$48.17$99.171,920,300
2008-06-13$47.83$98.472,306,300
2008-06-12$47.14$97.052,265,600
2008-06-11$45.95$94.602,242,600
2008-06-10$47.26$97.291,633,700
2008-06-09$46.82$96.391,942,500
2008-06-06$46.59$95.912,600,900
2008-06-05$48.17$99.171,762,200
2008-06-04$46.68$96.101,837,000
2008-06-03$46.46$95.652,217,000
2008-06-02$46.37$95.461,793,600
2008-05-30$47.19$97.151,815,100
2008-05-29$47.39$97.561,640,400
2008-05-28$46.42$95.562,661,900
2008-05-27$46.65$96.041,505,900
2008-05-23$46.43$95.581,574,700
2008-05-22$46.52$95.772,378,600
2008-05-21$46.17$95.052,586,000
2008-05-20$46.78$96.311,688,300
2008-05-19$47.10$96.961,682,900
2008-05-16$47.16$97.091,610,400
2008-05-15$47.49$97.771,790,800
2008-05-14$47.00$96.761,210,000
2008-05-13$46.75$96.241,366,800
2008-05-12$46.78$96.311,673,400
2008-05-09$46.30$95.321,186,900
2008-05-08$46.34$95.401,709,000
2008-05-07$46.29$95.301,591,700
2008-05-06$47.19$97.151,717,600
2008-05-05$46.71$96.161,590,600
2008-05-02$46.98$96.722,539,000
2008-05-01$46.79$96.332,839,600
2008-04-30$45.39$93.442,736,000
2008-04-29$46.00$94.702,141,000
2008-04-28$46.60$95.632,566,700
2008-04-25$46.64$95.712,220,400
2008-04-24$46.67$95.772,482,700
2008-04-23$45.89$94.172,505,200
2008-04-22$45.18$92.712,765,500
2008-04-21$45.67$93.722,758,800
2008-04-18$46.40$95.222,648,700
2008-04-17$45.37$93.102,267,100
2008-04-16$45.45$93.272,400,800
2008-04-15$44.63$91.582,169,000
2008-04-14$43.70$89.672,353,300
2008-04-11$43.83$89.941,965,100
2008-04-10$44.00$90.291,986,700
2008-04-09$43.73$89.742,645,300
2008-04-08$43.80$89.883,441,500
2008-04-07$43.56$89.392,741,600
2008-04-04$42.71$87.642,571,600
2008-04-03$42.74$87.702,502,500
2008-04-02$42.57$87.363,480,200
2008-04-01$41.52$85.202,778,500
2008-03-31$40.20$82.491,718,500
2008-03-28$39.59$81.241,634,600
2008-03-27$39.65$81.362,382,900
2008-03-26$40.19$82.472,019,200
2008-03-25$40.93$83.994,007,400
2008-03-24$40.88$83.892,148,700
2008-03-20$41.18$84.504,786,000
2008-03-19$40.54$83.192,383,300
2008-03-18$41.10$84.343,090,600
2008-03-17$39.68$81.432,829,800
2008-03-14$39.94$81.962,538,100
2008-03-13$41.38$84.911,438,700
2008-03-12$41.05$84.241,794,800
2008-03-11$41.09$84.322,306,100
2008-03-10$40.01$82.102,224,900
2008-03-07$40.24$82.572,225,500
2008-03-06$40.12$82.332,157,400
2008-03-05$41.06$84.262,467,000
2008-03-04$41.51$85.182,514,300
2008-03-03$41.28$84.712,134,100
2008-02-29$41.61$85.393,170,900
2008-02-28$42.85$87.932,587,900
2008-02-27$43.41$89.083,072,300
2008-02-26$42.81$87.852,673,700
2008-02-25$43.36$88.982,882,400
2008-02-22$43.11$88.463,339,400
2008-02-21$42.53$87.273,583,500
2008-02-20$42.93$88.092,384,400
2008-02-19$41.96$86.103,252,000
2008-02-15$42.49$87.192,154,100
2008-02-14$41.60$85.372,338,100
2008-02-13$41.74$85.653,297,700
2008-02-12$42.06$86.313,104,400
2008-02-11$41.44$85.043,815,400
2008-02-08$41.90$85.982,465,200
2008-02-07$43.01$88.262,761,200
2008-02-06$42.86$87.951,591,700
2008-02-05$42.93$88.091,352,900
2008-02-04$44.33$90.971,236,100
2008-02-01$44.83$91.991,820,600
2008-01-31$43.33$88.922,423,400
2008-01-30$42.72$87.663,163,800
2008-01-29$43.55$89.062,130,200
2008-01-28$43.53$89.021,534,200
2008-01-25$42.63$87.181,705,800
2008-01-24$43.33$88.613,074,700
2008-01-23$43.79$89.553,920,400
2008-01-22$43.37$88.693,116,600
2008-01-18$43.42$88.793,086,200
2008-01-17$43.33$88.612,894,500
2008-01-16$44.71$91.432,125,100
2008-01-15$44.06$90.101,479,000
2008-01-14$44.98$91.981,388,200
2008-01-11$45.17$92.371,507,100
2008-01-10$45.51$93.071,939,800
2008-01-09$45.15$92.332,266,000
2008-01-08$44.51$91.022,154,400
2008-01-07$45.24$92.522,459,000
2008-01-04$45.47$92.992,646,900
2008-01-03$46.08$94.233,070,300
2008-01-02$46.44$94.972,553,200