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Aon plc (AON)
NYSE: AON · Real-Time Price · USD
321.68
-2.10 (-0.65%)
At close: Apr 28, 2026, 4:00 PM EDT
321.68
0.00 (0.00%)
After-hours: Apr 28, 2026, 4:04 PM EDT

Aon plc Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Apr 28, 2026326.73328.95320.56320.54--1.00%604,853
Apr 27, 2026319.53325.95319.00323.78323.780.82%1,248,306
Apr 24, 2026322.42323.79318.64321.14321.14-0.75%743,290
Apr 23, 2026326.35328.13321.60323.56323.56-1.01%941,322
Apr 22, 2026333.80334.92324.28326.86326.86-2.52%1,274,156
Apr 21, 2026332.93336.89331.75335.32335.321.02%1,157,048
Apr 20, 2026331.45334.35330.91331.95331.950.05%792,166
Apr 17, 2026333.27336.36331.43331.80331.80-1.06%1,125,197
Apr 16, 2026329.87337.98328.27335.34335.342.21%1,349,935
Apr 15, 2026323.80329.29321.75328.08328.081.57%1,058,005
Apr 14, 2026321.75324.43320.95323.02323.02-0.73%1,201,604
Apr 13, 2026315.00325.68313.00325.40325.404.10%1,652,359
Apr 10, 2026323.16323.29307.81312.57312.57-3.94%2,373,214
Apr 9, 2026326.54328.17322.69325.40325.40-1.32%1,310,797
Apr 8, 2026322.47330.93321.58329.76329.762.26%1,396,526
Apr 7, 2026325.61326.55320.10322.47322.47-1.13%1,153,718
Apr 6, 2026321.21327.27321.21326.17326.170.94%827,490
Apr 2, 2026321.94328.79319.57323.14323.140.56%1,121,425
Apr 1, 2026321.88325.39318.00321.34321.34-0.45%1,081,191
Mar 31, 2026326.05326.69319.90322.78322.78-0.39%1,343,552
Mar 30, 2026316.45325.38315.66324.06324.063.32%1,213,923
Mar 27, 2026322.19328.00312.05313.66313.66-3.12%1,343,988
Mar 26, 2026320.83326.60320.83323.77323.770.72%1,211,400
Mar 25, 2026325.36327.46317.46321.45321.45-1.71%932,561
Mar 24, 2026327.56328.84324.96327.03327.030.33%1,175,151
Mar 23, 2026327.99328.29323.51325.97325.970.10%1,124,472
Mar 20, 2026317.24326.56317.24325.63325.632.73%2,323,961
Mar 19, 2026320.00320.80315.64316.99316.99-0.28%1,188,668
Mar 18, 2026319.67320.30314.80317.88317.88-1.03%981,040
Mar 17, 2026326.75333.26319.23321.18321.18-1.70%1,570,810
Mar 16, 2026322.60327.26320.13326.75326.751.66%1,067,379
Mar 13, 2026320.01324.20318.02321.41321.411.74%1,124,111
Mar 12, 2026316.00323.26313.81315.91315.91-0.31%1,865,463
Mar 11, 2026320.96322.04316.55316.90316.90-1.26%1,316,433
Mar 10, 2026332.22332.22320.44320.96320.96-3.57%1,411,895
Mar 9, 2026341.55342.38329.75332.84332.84-2.28%1,707,487
Mar 6, 2026337.37341.46334.09340.60340.600.54%1,160,237
Mar 5, 2026338.97341.86336.49338.77338.77-0.71%1,516,335
Mar 4, 2026337.42344.65337.37341.18341.180.62%2,008,776
Mar 3, 2026333.37339.36331.71339.07339.070.38%1,414,284
Mar 2, 2026332.02340.32331.96337.80337.800.69%1,269,849
Feb 27, 2026331.00337.97330.56335.47335.471.57%2,126,224
Feb 26, 2026325.50332.00325.16330.27330.271.73%1,062,012
Feb 25, 2026319.90325.04317.78324.66324.661.67%1,410,584
Feb 24, 2026316.96321.30312.58319.33319.331.27%1,471,217
Feb 23, 2026324.71326.44314.89315.31315.31-3.00%1,425,723
Feb 20, 2026325.94327.20323.18325.07325.070.24%1,264,997
Feb 19, 2026322.77324.31320.91324.30324.300.41%1,015,749
Feb 18, 2026322.93326.41321.04322.98322.98-0.91%1,172,298
Feb 17, 2026324.85329.57320.00325.96325.961.32%1,862,344
Feb 13, 2026317.95322.39313.16321.70321.702.29%2,220,162
Feb 12, 2026309.71317.58304.59314.49314.491.46%2,827,524
Feb 11, 2026315.32317.91307.01309.97309.97-2.50%2,960,101
Feb 10, 2026312.99322.08312.99317.92317.922.44%3,966,929
Feb 9, 2026340.76343.92309.13310.34310.34-9.27%3,885,872
Feb 6, 2026344.71345.00340.58342.04342.04-0.38%1,326,163
Feb 5, 2026350.32353.68343.19343.36343.36-1.96%1,421,893
Feb 4, 2026348.28355.96348.18350.21350.210.97%1,272,692
Feb 3, 2026347.31351.15343.20346.84346.84-0.79%1,266,326
Feb 2, 2026353.14358.04348.25349.61349.61-0.01%1,371,671
Jan 30, 2026346.96351.80341.17349.64348.901.95%1,938,787
Jan 29, 2026335.62343.28335.57342.95342.222.99%2,149,356
Jan 28, 2026329.41335.23327.53333.00332.290.68%1,341,240
Jan 27, 2026337.18337.78325.90330.75330.05-2.40%1,330,489
Jan 26, 2026339.32342.00336.92338.87338.150.05%1,156,661
Jan 23, 2026336.14338.84333.85338.69337.970.81%1,053,374
Jan 22, 2026331.99336.58330.30335.96335.240.96%1,370,714
Jan 21, 2026339.50341.83330.77332.76332.05-1.99%1,592,884
Jan 20, 2026341.38342.97337.44339.50338.78-1.27%1,645,543
Jan 16, 2026343.28344.39340.60343.86343.13-0.28%882,946
Jan 15, 2026346.00347.06342.70344.84344.11-0.34%915,883
Jan 14, 2026344.70347.83344.50346.00345.260.41%1,019,681
Jan 13, 2026348.88350.70343.23344.59343.86-1.68%1,028,408
Jan 12, 2026351.00353.93349.37350.49349.74-0.09%1,053,516
Jan 9, 2026351.41353.36350.12350.80350.05-0.33%678,434
Jan 8, 2026349.03355.43347.22351.97351.220.59%861,739
Jan 7, 2026348.13353.16342.92349.92349.170.07%1,390,772
Jan 6, 2026350.35353.53348.32349.67348.92-0.46%797,771
Jan 5, 2026340.91352.16339.39351.29350.542.04%992,717
Jan 2, 2026351.12351.65342.75344.27343.54-2.44%780,641
Dec 31, 2025356.96356.96352.82352.88352.13-1.01%453,298
Dec 30, 2025355.94357.57353.66356.49355.73-0.07%440,147
Dec 29, 2025356.66358.55355.40356.73355.970.02%433,180
Dec 26, 2025356.24357.79354.14356.65355.89-309,355
Dec 24, 2025355.00358.14354.02356.65355.890.22%283,851
Dec 23, 2025355.77356.81353.88355.87355.110.12%590,338
Dec 22, 2025348.87356.77348.00355.46354.701.55%827,026
Dec 19, 2025352.66354.46349.91350.04349.29-0.84%2,459,720
Dec 18, 2025350.70354.06350.70353.02352.270.28%980,137
Dec 17, 2025350.36354.40349.93352.03351.280.07%885,277
Dec 16, 2025352.84354.72351.04351.80351.05-0.65%1,121,356
Dec 15, 2025353.71355.33350.98354.10353.350.09%968,847
Dec 12, 2025348.64354.12347.39353.79353.041.84%1,074,319
Dec 11, 2025342.73348.12340.05347.40346.662.16%1,037,293
Dec 10, 2025346.26346.42336.43340.05339.33-1.77%1,300,292
Dec 9, 2025344.32348.66343.08346.19345.450.82%974,829
Dec 8, 2025343.23344.55341.03343.39342.66-0.52%874,985
Dec 5, 2025346.72347.57340.19345.20344.46-0.72%1,188,957
Dec 4, 2025344.45347.99344.45347.71346.970.95%690,803
Dec 3, 2025345.49347.34341.98344.45343.72-0.36%798,396