Aon plc historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2026-10-16 | 288.79 | 292.73 | 287.74 | 292.55 | 292.55 | 1,840,100 |
| 2026-10-15 | 279.85 | 288.47 | 279.85 | 286.80 | 286.80 | 2,330,900 |
| 2026-10-14 | 275.63 | 277.25 | 272.04 | 275.35 | 275.35 | 1,699,600 |
| 2026-10-13 | 275.99 | 277.62 | 272.39 | 274.71 | 274.71 | 1,453,700 |
| 2026-10-12 | 274.87 | 276.01 | 273.24 | 274.78 | 274.78 | 1,673,300 |
| 2026-10-09 | 276.63 | 277.49 | 272.83 | 273.47 | 273.47 | 1,911,600 |
| 2026-10-08 | 271.29 | 277.90 | 270.03 | 277.12 | 277.12 | 1,976,500 |
| 2026-10-07 | 275.07 | 275.31 | 269.72 | 270.47 | 270.47 | 1,541,400 |
| 2026-10-06 | 270.83 | 274.71 | 270.10 | 273.99 | 273.99 | 1,382,200 |
| 2026-10-05 | 267.59 | 272.37 | 266.33 | 272.05 | 272.05 | 1,366,000 |
| 2026-10-02 | 274.96 | 276.39 | 268.90 | 269.45 | 269.45 | 1,608,800 |
| 2026-10-01 | 277.48 | 279.49 | 274.81 | 275.95 | 275.95 | 2,009,500 |
| 2026-09-30 | 275.78 | 278.19 | 273.80 | 276.77 | 276.77 | 2,300,100 |
| 2026-09-29 | 269.91 | 276.97 | 269.02 | 275.90 | 275.90 | 1,987,900 |
| 2026-09-28 | 277.50 | 278.40 | 270.00 | 272.10 | 272.10 | 1,852,200 |
| 2026-09-25 | 277.00 | 280.98 | 276.52 | 277.99 | 277.99 | 1,633,000 |
| 2026-09-24 | 281.60 | 283.03 | 275.38 | 276.09 | 276.09 | 2,713,200 |
| 2026-09-23 | 284.67 | 286.80 | 281.18 | 281.60 | 281.60 | 1,793,000 |
| 2026-09-22 | 291.06 | 293.55 | 282.70 | 286.10 | 286.10 | 2,544,500 |
| 2026-09-21 | 297.01 | 297.87 | 290.70 | 290.82 | 290.82 | 1,936,300 |
| 2026-09-18 | 294.25 | 297.73 | 293.00 | 295.64 | 295.64 | 3,186,100 |
| 2026-09-17 | 299.54 | 302.12 | 295.78 | 296.05 | 296.05 | 3,273,100 |
| 2026-09-16 | 303.40 | 304.06 | 298.48 | 300.57 | 300.57 | 3,194,600 |
| 2026-09-15 | 311.60 | 311.98 | 304.59 | 304.67 | 304.67 | 1,799,000 |
| 2026-09-14 | 308.08 | 312.39 | 305.92 | 311.54 | 311.54 | 2,879,200 |
| 2026-09-11 | 310.85 | 311.89 | 302.44 | 302.69 | 302.69 | 2,238,000 |
| 2026-09-10 | 304.97 | 310.04 | 304.20 | 307.77 | 307.77 | 2,449,200 |
| 2026-09-09 | 313.45 | 315.67 | 303.59 | 304.69 | 304.69 | 2,266,700 |
| 2026-09-08 | 316.78 | 321.57 | 314.95 | 315.79 | 315.79 | 1,926,500 |
| 2026-09-04 | 328.18 | 328.84 | 321.49 | 323.09 | 323.09 | 1,467,900 |
| 2026-09-03 | 332.00 | 336.45 | 325.68 | 327.00 | 327.00 | 1,465,100 |
| 2026-09-02 | 327.70 | 331.60 | 324.79 | 330.88 | 330.88 | 2,189,300 |
| 2026-09-01 | 321.42 | 328.52 | 312.92 | 326.30 | 326.30 | 2,423,200 |
| 2026-08-31 | 340.00 | 343.26 | 320.21 | 321.52 | 321.52 | 2,433,000 |
| 2026-08-28 | 350.96 | 358.71 | 349.76 | 355.40 | 355.40 | 669,100 |
| 2026-08-27 | 350.51 | 352.88 | 348.03 | 349.56 | 349.56 | 688,200 |
| 2026-08-26 | 354.63 | 356.46 | 353.19 | 353.98 | 353.98 | 594,200 |
| 2026-08-25 | 357.00 | 360.30 | 354.14 | 354.83 | 354.83 | 616,300 |
| 2026-08-24 | 358.52 | 361.73 | 356.50 | 359.10 | 359.10 | 627,200 |
| 2026-08-21 | 352.39 | 356.86 | 350.57 | 355.11 | 355.11 | 747,000 |
| 2026-08-20 | 348.90 | 356.12 | 346.32 | 351.93 | 351.93 | 733,300 |
| 2026-08-19 | 344.23 | 352.84 | 341.75 | 348.43 | 348.43 | 615,900 |
| 2026-08-18 | 343.20 | 350.13 | 343.03 | 343.20 | 343.20 | 921,500 |
| 2026-08-17 | 354.00 | 355.27 | 346.50 | 347.22 | 347.22 | 709,300 |
| 2026-08-14 | 357.08 | 359.98 | 353.78 | 355.83 | 355.83 | 704,500 |
| 2026-08-13 | 354.33 | 358.55 | 349.33 | 357.08 | 357.08 | 810,100 |
| 2026-08-12 | 354.00 | 355.91 | 349.99 | 352.36 | 352.36 | 626,000 |
| 2026-08-11 | 354.00 | 359.10 | 354.00 | 356.46 | 356.46 | 403,300 |
| 2026-08-10 | 357.71 | 359.53 | 355.00 | 356.97 | 356.97 | 705,300 |
| 2026-08-07 | 357.51 | 360.60 | 354.61 | 358.30 | 358.30 | 928,700 |
| 2026-08-06 | 362.95 | 364.99 | 356.84 | 360.75 | 360.75 | 1,140,000 |
| 2026-08-05 | 356.96 | 360.60 | 355.22 | 359.97 | 359.97 | 657,200 |
| 2026-08-04 | 353.37 | 357.09 | 350.23 | 356.65 | 356.65 | 1,433,500 |
| 2026-08-03 | 362.04 | 366.32 | 356.12 | 357.63 | 357.63 | 1,950,100 |
| 2026-07-31 | 363.08 | 365.02 | 359.78 | 360.55 | 359.73 | 1,315,600 |
| 2026-07-30 | 367.19 | 370.49 | 358.49 | 366.57 | 365.74 | 4,227,700 |
| 2026-07-29 | 367.64 | 379.50 | 362.26 | 377.16 | 376.30 | 2,010,600 |
| 2026-07-28 | 370.00 | 382.34 | 367.17 | 381.26 | 380.39 | 1,508,000 |
| 2026-07-27 | 362.03 | 369.75 | 359.80 | 367.17 | 366.33 | 1,590,500 |
| 2026-07-24 | 355.93 | 362.61 | 355.65 | 361.70 | 360.88 | 785,000 |
Page 1 of 2 · 64 trading daysOlder →
Stock splits
| Date | Split (new : old) |
|---|---|
| 1999-05-18 | 3:2 |
| 1997-05-15 | 3:2 |
| 1994-05-17 | 3:2 |
Dividends
| Ex-date | Amount |
|---|---|
| 2026-08-03 | 0.8200 USD |
| 2026-05-01 | 0.8200 USD |
| 2026-02-02 | 0.7450 USD |
| 2025-11-03 | 0.7450 USD |
| 2025-08-01 | 0.7450 USD |
| 2025-05-01 | 0.7450 USD |
| 2025-02-03 | 0.6750 USD |
| 2024-11-01 | 0.6750 USD |
| 2024-08-01 | 0.6750 USD |
| 2024-04-30 | 0.6750 USD |
| 2024-01-31 | 0.6150 USD |
| 2023-10-31 | 0.6150 USD |
| 2023-07-31 | 0.6150 USD |
| 2023-04-28 | 0.6150 USD |
| 2023-01-31 | 0.5600 USD |
| 2022-10-31 | 0.5600 USD |
| 2022-07-29 | 0.5600 USD |
| 2022-04-29 | 0.5600 USD |
| 2022-01-31 | 0.5100 USD |
| 2021-10-29 | 0.5100 USD |
| 2021-07-30 | 0.5100 USD |
| 2021-04-30 | 0.5100 USD |
| 2021-01-29 | 0.4600 USD |
| 2020-10-30 | 0.4600 USD |
| 2020-07-31 | 0.4400 USD |
| 2020-04-30 | 0.4400 USD |
| 2020-01-31 | 0.4400 USD |
| 2019-10-31 | 0.4400 USD |
| 2019-07-31 | 0.4400 USD |
| 2019-04-30 | 0.4400 USD |
| 2019-01-31 | 0.4000 USD |
Open, high, low and close are as traded (USD). Adjusted close accounts for splits and dividends. Educational only, not financial advice.