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.

View year

Historical Stock Price — 1997

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1997-12-31$39.08$63.42409,500
1997-12-30$38.13$61.86265,800
1997-12-29$38.00$61.66199,350
1997-12-26$37.33$60.58102,600
1997-12-24$37.17$60.31201,000
1997-12-23$37.38$60.65430,650
1997-12-22$37.71$61.19306,150
1997-12-19$36.75$59.63471,600
1997-12-18$36.54$59.30294,900
1997-12-17$36.42$59.09142,950
1997-12-16$36.79$59.70151,950
1997-12-15$36.71$59.57264,450
1997-12-12$36.54$59.30215,100
1997-12-11$36.33$58.96296,400
1997-12-10$36.63$59.43442,200
1997-12-09$36.50$59.23263,700
1997-12-08$36.79$59.70249,000
1997-12-05$36.63$59.43313,200
1997-12-04$36.21$58.75228,300
1997-12-03$35.92$58.28325,050
1997-12-02$36.00$58.42170,700
1997-12-01$35.96$58.35272,550
1997-11-28$35.25$57.2035,850
1997-11-26$35.17$57.06503,250
1997-11-25$34.67$56.25163,650
1997-11-24$34.58$56.12195,750
1997-11-21$35.00$56.79262,350
1997-11-20$35.21$57.13269,550
1997-11-19$35.25$57.20354,000
1997-11-18$34.58$56.12296,850
1997-11-17$35.29$57.27517,050
1997-11-14$34.71$56.32289,200
1997-11-13$34.67$56.25437,100
1997-11-12$34.25$55.58233,250
1997-11-11$35.29$57.27105,900
1997-11-10$35.63$57.81199,500
1997-11-07$35.88$58.21486,150
1997-11-06$36.58$59.36146,250
1997-11-05$36.79$59.70210,450
1997-11-04$36.88$59.84267,450
1997-11-03$36.75$59.63250,650
1997-10-31$35.96$58.35300,900
1997-10-30$35.75$57.73332,700
1997-10-29$36.83$59.48705,600
1997-10-28$36.63$59.14749,550
1997-10-27$34.75$56.11232,500
1997-10-24$36.79$59.41237,300
1997-10-23$36.83$59.48398,700
1997-10-22$37.38$60.35396,000
1997-10-21$38.00$61.36403,350
1997-10-20$37.63$60.76241,350
1997-10-17$36.75$59.34440,550
1997-10-16$37.04$59.82185,250
1997-10-15$37.63$60.76198,150
1997-10-14$37.92$61.23290,700
1997-10-13$37.83$61.09169,350
1997-10-10$37.42$60.42212,700
1997-10-09$37.67$60.82440,250
1997-10-08$38.38$61.97650,250
1997-10-07$38.83$62.71361,650
1997-10-06$37.92$61.23497,700
1997-10-03$37.21$60.08497,400
1997-10-02$36.63$59.14343,950
1997-10-01$36.08$58.27195,900
1997-09-30$35.17$56.79290,400
1997-09-29$35.04$56.59303,150
1997-09-26$34.92$56.38215,550
1997-09-25$35.13$56.72270,150
1997-09-24$35.58$57.46216,150
1997-09-23$35.42$57.19308,400
1997-09-22$36.00$58.13204,300
1997-09-19$35.96$58.07472,500
1997-09-18$36.04$58.20288,000
1997-09-17$35.75$57.73316,650
1997-09-16$35.63$57.53322,950
1997-09-15$34.21$55.24193,050
1997-09-12$34.63$55.91485,400
1997-09-11$33.71$54.43377,550
1997-09-10$34.17$55.17164,550
1997-09-09$34.88$56.32171,150
1997-09-08$35.00$56.52185,700
1997-09-05$34.71$56.05207,750
1997-09-04$35.00$56.52301,950
1997-09-03$34.75$56.11288,750
1997-09-02$34.79$56.18282,750
1997-08-29$33.96$54.84185,850
1997-08-28$34.08$55.04399,000
1997-08-27$33.79$54.57497,850
1997-08-26$34.17$55.17377,250
1997-08-25$34.25$55.31201,900
1997-08-22$34.33$55.44313,200
1997-08-21$34.88$56.32325,050
1997-08-20$35.08$56.65282,300
1997-08-19$35.96$58.07267,000
1997-08-18$34.83$56.25241,650
1997-08-15$34.54$55.78324,300
1997-08-14$35.29$56.99240,750
1997-08-13$35.54$57.39231,150
1997-08-12$35.38$57.12145,050
1997-08-11$35.54$57.39318,000
1997-08-08$35.17$56.79496,350
1997-08-07$35.88$57.93370,650
1997-08-06$36.13$58.34197,700
1997-08-05$35.71$57.66265,350
1997-08-04$36.17$58.40232,500
1997-08-01$35.83$57.86453,750
1997-07-31$37.33$60.01377,850
1997-07-30$36.75$59.07273,000
1997-07-29$36.08$58.00298,350
1997-07-28$35.13$56.46259,950
1997-07-25$35.79$57.53140,700
1997-07-24$35.67$57.33253,350
1997-07-23$36.00$57.86223,500
1997-07-22$36.25$58.27391,650
1997-07-21$34.88$56.06540,600
1997-07-18$35.00$56.26262,350
1997-07-17$35.71$57.39373,650
1997-07-16$36.13$58.06313,050
1997-07-15$35.92$57.73214,650
1997-07-14$35.92$57.73151,050
1997-07-11$36.33$58.40158,100
1997-07-10$36.33$58.40320,850
1997-07-09$35.54$57.13473,250
1997-07-08$35.63$57.26266,850
1997-07-07$35.54$57.13228,900
1997-07-03$35.42$56.93324,600
1997-07-02$34.83$55.99506,700
1997-07-01$34.79$55.92346,350
1997-06-30$34.50$55.45276,900
1997-06-27$34.71$55.79240,450
1997-06-26$34.17$54.92250,650
1997-06-25$34.42$55.32609,150
1997-06-24$34.96$56.19886,800
1997-06-23$34.83$55.99646,800
1997-06-20$34.83$55.99648,600
1997-06-19$34.25$55.05404,100
1997-06-18$33.83$54.38184,650
1997-06-17$33.75$54.25298,800
1997-06-16$33.67$54.11292,650
1997-06-13$33.25$53.44347,850
1997-06-12$33.67$54.11295,950
1997-06-11$32.92$52.91195,150
1997-06-10$32.92$52.91212,250
1997-06-09$32.75$52.64251,550
1997-06-06$32.67$52.51214,800
1997-06-05$32.42$52.10242,850
1997-06-04$32.17$51.70147,600
1997-06-03$32.50$52.24152,850
1997-06-02$32.42$52.10142,650
1997-05-30$32.50$52.24250,800
1997-05-29$31.92$51.30246,750
1997-05-28$31.83$51.17255,600
1997-05-27$31.58$50.76103,350
1997-05-23$31.75$51.0399,150
1997-05-22$31.58$50.76301,650
1997-05-21$31.25$50.23287,400
1997-05-20$31.33$50.36229,950
1997-05-19$31.58$50.76204,750
1997-05-16$31.42$50.50347,700
1997-05-15$31.83$51.17279,000
1997-05-14$31.78$51.08601,875
1997-05-13$31.67$50.90328,275
1997-05-12$31.61$50.81269,550
1997-05-09$31.28$50.27231,300
1997-05-08$31.39$50.45476,550
1997-05-07$30.44$48.93451,800
1997-05-06$31.17$50.09337,275
1997-05-05$31.50$50.63567,000
1997-05-02$30.56$49.11287,550
1997-05-01$29.50$47.42339,525
1997-04-30$29.56$47.51405,675
1997-04-29$29.50$47.42492,525
1997-04-28$29.33$46.87178,425
1997-04-25$28.72$45.89118,350
1997-04-24$28.72$45.89179,100
1997-04-23$29.06$46.43286,200
1997-04-22$29.11$46.51571,950
1997-04-21$28.17$45.01629,325
1997-04-18$28.44$45.45544,275
1997-04-17$28.39$45.36460,125
1997-04-16$28.56$45.63421,650
1997-04-15$27.94$44.65405,225
1997-04-14$27.72$44.30450,450
1997-04-11$27.11$43.32622,575
1997-04-10$27.61$44.12348,750
1997-04-09$27.39$43.76259,200
1997-04-08$27.83$44.47165,600
1997-04-07$27.83$44.47389,475
1997-04-04$27.50$43.94396,450
1997-04-03$27.22$43.50405,225
1997-04-02$27.06$43.23285,075
1997-04-01$27.50$43.94358,875
1997-03-31$27.22$43.50578,475
1997-03-27$27.50$43.94492,750
1997-03-26$28.67$45.80194,850
1997-03-25$29.00$46.34260,775
1997-03-24$28.83$46.07416,925
1997-03-21$28.83$46.07693,000
1997-03-20$28.89$46.16366,075
1997-03-19$28.89$46.16395,775
1997-03-18$28.89$46.16404,550
1997-03-17$29.17$46.60228,150
1997-03-14$29.22$46.69352,125
1997-03-13$29.00$46.34300,150
1997-03-12$29.61$47.31513,900
1997-03-11$29.56$47.22267,975
1997-03-10$29.83$47.67365,400
1997-03-07$29.50$47.14757,350
1997-03-06$28.83$46.07551,475
1997-03-05$28.50$45.54167,400
1997-03-04$28.00$44.74290,925
1997-03-03$28.17$45.01251,325
1997-02-28$28.17$45.01204,525
1997-02-27$28.39$45.36202,725
1997-02-26$28.56$45.63533,025
1997-02-25$28.78$45.98563,850
1997-02-24$28.72$45.89209,925
1997-02-21$28.44$45.45237,150
1997-02-20$28.28$45.18404,100
1997-02-19$28.94$46.25346,050
1997-02-18$29.33$46.87285,300
1997-02-14$29.06$46.43285,075
1997-02-13$29.28$46.78315,225
1997-02-12$28.67$45.80314,550
1997-02-11$28.61$45.72259,200
1997-02-10$28.39$45.36312,525
1997-02-07$28.56$45.63216,675
1997-02-06$28.50$45.28216,450
1997-02-05$28.56$45.37566,550
1997-02-04$27.89$44.311,079,100
1997-02-03$28.50$45.28615,150
1997-01-31$28.72$45.64379,800
1997-01-30$28.72$45.64714,375
1997-01-29$28.61$45.46631,125
1997-01-28$28.44$45.19271,575
1997-01-27$28.33$45.02335,475
1997-01-24$28.50$45.28293,400
1997-01-23$28.39$45.11305,775
1997-01-22$28.72$45.64374,175
1997-01-21$28.44$45.19350,550
1997-01-20$28.39$45.11422,100
1997-01-17$28.22$44.84482,625
1997-01-16$28.28$44.93264,600
1997-01-15$28.56$45.37602,550
1997-01-14$28.22$44.84255,150
1997-01-13$28.11$44.661,225,350
1997-01-10$27.56$43.78245,925
1997-01-09$27.72$44.05273,375
1997-01-08$27.67$43.96310,500
1997-01-07$27.67$43.96263,025
1997-01-06$27.33$43.43353,925
1997-01-03$27.61$43.87345,825
1997-01-02$27.39$43.52340,425