Aon PLC (AON) — Price History
As of 2026-08-07 — refreshed nightly from the Closelook data lake. Diary readings, not advice.
Daily prices
| Date | Open | High | Low | Close | Chg % | Volume |
|---|---|---|---|---|---|---|
| 2026-08-07 | 357.51 | 360.60 | 354.61 | 358.30 | -0.68% | 928,700 |
| 2026-08-06 | 362.95 | 364.99 | 356.84 | 360.75 | +0.22% | 1,140,000 |
| 2026-08-05 | 356.96 | 360.60 | 355.22 | 359.97 | +0.93% | 657,200 |
| 2026-08-04 | 353.37 | 357.09 | 350.23 | 356.65 | -0.27% | 1,433,500 |
| 2026-08-03 | 362.04 | 366.32 | 356.12 | 357.63 | -0.81% | 1,950,100 |
| 2026-07-31 | 363.08 | 365.02 | 359.78 | 360.55 | -1.64% | 1,315,600 |
| 2026-07-30 | 367.19 | 370.49 | 358.49 | 366.57 | -2.81% | 4,227,700 |
| 2026-07-29 | 367.64 | 379.50 | 362.26 | 377.16 | -1.08% | 2,010,600 |
| 2026-07-28 | 370.00 | 382.34 | 367.17 | 381.26 | +3.84% | 1,508,000 |
| 2026-07-27 | 362.03 | 369.75 | 359.80 | 367.17 | +1.51% | 1,590,500 |
| 2026-07-24 | 355.93 | 362.61 | 355.65 | 361.70 | +1.66% | 785,000 |
| 2026-07-23 | 352.59 | 355.79 | 350.83 | 355.78 | +0.98% | 1,178,100 |
| 2026-07-22 | 359.65 | 359.97 | 350.96 | 352.33 | -1.97% | 1,813,200 |
| 2026-07-21 | 359.08 | 363.00 | 354.80 | 359.40 | -0.93% | 1,371,200 |
| 2026-07-20 | 364.87 | 366.00 | 361.11 | 362.78 | -1.21% | 1,074,100 |
| 2026-07-17 | 370.00 | 375.92 | 365.63 | 367.21 | -0.39% | 1,445,600 |
| 2026-07-16 | 358.23 | 368.64 | 356.56 | 368.63 | +3.80% | 1,017,900 |
| 2026-07-15 | 357.52 | 360.29 | 350.46 | 355.15 | -1.04% | 1,193,600 |
| 2026-07-14 | 364.29 | 365.78 | 358.40 | 358.89 | -2.30% | 1,168,300 |
| 2026-07-13 | 360.12 | 367.58 | 360.12 | 367.35 | +2.92% | 1,511,700 |
| 2026-07-10 | 357.55 | 360.00 | 353.79 | 356.94 | +0.39% | 998,600 |
| 2026-07-09 | 354.98 | 357.50 | 353.10 | 355.56 | -0.55% | 602,000 |
| 2026-07-08 | 360.00 | 361.13 | 357.00 | 357.51 | -0.64% | 641,700 |
| 2026-07-07 | 360.00 | 366.45 | 357.06 | 359.82 | +0.82% | 830,188 |
| 2026-07-06 | 356.71 | 357.18 | 351.38 | 356.91 | -0.15% | 1,217,995 |
| 2026-07-02 | 346.41 | 357.54 | 344.20 | 357.46 | +4.05% | 1,183,000 |
| 2026-07-01 | 327.83 | 347.27 | 327.83 | 343.56 | +3.58% | 1,913,700 |
| 2026-06-30 | 327.07 | 333.76 | 322.26 | 331.69 | +1.26% | 1,588,800 |
| 2026-06-29 | 324.97 | 330.43 | 323.41 | 327.57 | -0.34% | 1,387,400 |
| 2026-06-26 | 319.72 | 330.36 | 316.82 | 328.69 | +4.03% | 5,288,300 |
| 2026-06-25 | 324.49 | 328.46 | 315.78 | 315.95 | -2.93% | 1,744,200 |
| 2026-06-24 | 322.59 | 328.24 | 319.22 | 325.48 | +1.48% | 2,362,200 |
| 2026-06-23 | 318.29 | 323.57 | 316.69 | 320.74 | +2.27% | 2,626,900 |
| 2026-06-22 | 316.51 | 319.75 | 313.62 | 313.63 | -1.29% | 2,131,300 |
| 2026-06-18 | 327.86 | 328.00 | 317.48 | 317.74 | -2.74% | 2,382,900 |
| 2026-06-17 | 327.02 | 334.79 | 325.00 | 326.69 | -1.44% | 1,751,100 |
| 2026-06-16 | 330.80 | 333.15 | 329.13 | 331.45 | +0.59% | 1,751,400 |
| 2026-06-15 | 336.71 | 338.21 | 327.98 | 329.51 | -1.73% | 1,405,800 |
| 2026-06-12 | 335.00 | 338.20 | 330.81 | 335.31 | +0.04% | 1,377,900 |
| 2026-06-11 | 334.39 | 340.10 | 334.39 | 335.17 | -0.34% | 1,431,100 |
| 2026-06-10 | 334.48 | 340.76 | 331.00 | 336.33 | +1.43% | 1,749,500 |
| 2026-06-09 | 324.87 | 333.07 | 321.55 | 331.59 | +1.76% | 1,956,215 |
| 2026-06-08 | 325.49 | 328.83 | 323.78 | 325.85 | -0.82% | 1,470,276 |
| 2026-06-05 | 325.00 | 331.13 | 324.12 | 328.53 | +1.95% | 1,341,000 |
| 2026-06-04 | 321.17 | 327.90 | 318.81 | 322.24 | +2.10% | 1,579,700 |
| 2026-06-03 | 316.16 | 317.04 | 311.07 | 315.60 | -0.71% | 1,617,800 |
| 2026-06-02 | 317.58 | 319.35 | 312.34 | 317.86 | -0.80% | 1,051,200 |
| 2026-06-01 | 313.78 | 321.42 | 313.23 | 320.41 | +1.38% | 1,431,600 |
| 2026-05-29 | 317.77 | 317.83 | 314.54 | 316.06 | -0.70% | 2,856,900 |
| 2026-05-28 | 320.03 | 322.09 | 316.03 | 318.30 | -0.08% | 1,350,700 |
| 2026-05-27 | 321.09 | 325.60 | 317.49 | 318.54 | -0.23% | 1,073,700 |
| 2026-05-26 | 326.27 | 326.38 | 318.48 | 319.29 | -1.69% | 1,411,400 |
| 2026-05-22 | 323.28 | 325.40 | 320.65 | 324.78 | +0.17% | 929,000 |
| 2026-05-21 | 318.71 | 325.27 | 315.00 | 324.22 | +0.96% | 946,500 |
| 2026-05-20 | 323.60 | 323.60 | 316.90 | 321.15 | -0.78% | 1,479,300 |
| 2026-05-19 | 328.16 | 330.22 | 322.26 | 323.66 | -0.89% | 2,140,600 |
| 2026-05-18 | 317.51 | 328.48 | 317.51 | 326.57 | +2.95% | 1,455,600 |
| 2026-05-15 | 316.24 | 321.69 | 316.24 | 317.22 | +0.57% | 1,955,300 |
| 2026-05-14 | 311.61 | 317.26 | 311.61 | 315.41 | +1.45% | 1,844,800 |
| 2026-05-13 | 313.62 | 315.49 | 308.51 | 310.90 | -1.72% | 1,672,400 |
| 2026-05-12 | 313.89 | 317.59 | 310.63 | 316.35 | +1.37% | 1,622,713 |
| 2026-05-11 | 312.42 | 314.85 | 309.87 | 312.07 | -0.23% | 1,166,105 |
| 2026-05-08 | 313.00 | 314.06 | 309.22 | 312.79 | -0.26% | 1,179,200 |
| 2026-05-07 | 307.19 | 315.90 | 306.52 | 313.59 | +1.73% | 1,858,900 |
| 2026-05-06 | 316.41 | 317.49 | 306.87 | 308.27 | -2.00% | 1,476,900 |
| 2026-05-05 | 313.67 | 315.41 | 308.99 | 314.55 | -0.12% | 1,177,100 |
| 2026-05-04 | 309.93 | 316.56 | 308.57 | 314.92 | +1.09% | 1,382,000 |
| 2026-05-01 | 326.52 | 326.52 | 310.73 | 311.51 | -0.04% | 1,822,700 |
| 2026-04-30 | 312.43 | 314.02 | 307.02 | 311.65 | -3.36% | 2,614,600 |
| 2026-04-29 | 319.89 | 323.12 | 319.11 | 322.49 | +0.25% | 1,156,800 |
| 2026-04-28 | 326.73 | 328.95 | 320.52 | 321.68 | -0.65% | 1,312,200 |
| 2026-04-27 | 319.53 | 325.95 | 319.00 | 323.78 | +0.82% | 1,248,900 |
| 2026-04-24 | 322.42 | 323.79 | 318.64 | 321.14 | -0.75% | 761,200 |
| 2026-04-23 | 326.35 | 328.13 | 321.60 | 323.56 | -1.01% | 941,300 |
| 2026-04-22 | 333.80 | 334.92 | 324.28 | 326.86 | -2.52% | 1,281,900 |
| 2026-04-21 | 332.93 | 336.89 | 331.75 | 335.32 | +1.02% | 1,215,000 |
| 2026-04-20 | 331.45 | 334.35 | 330.91 | 331.95 | +0.05% | 792,200 |
| 2026-04-17 | 333.27 | 336.35 | 331.43 | 331.80 | -1.06% | 1,161,400 |
| 2026-04-16 | 329.87 | 337.98 | 328.27 | 335.34 | +2.21% | 1,350,000 |
| 2026-04-15 | 323.80 | 329.29 | 321.75 | 328.08 | +1.57% | 1,093,700 |
| 2026-04-14 | 321.75 | 324.43 | 320.95 | 323.02 | -0.73% | 1,270,500 |
| 2026-04-13 | 315.00 | 325.68 | 313.00 | 325.40 | +4.10% | 1,687,500 |
| 2026-04-10 | 323.16 | 323.29 | 307.81 | 312.57 | -3.94% | 2,414,200 |
| 2026-04-09 | 326.54 | 328.17 | 322.69 | 325.40 | -1.32% | 1,314,400 |
| 2026-04-08 | 322.47 | 330.93 | 321.58 | 329.76 | +2.26% | 1,397,600 |
| 2026-04-07 | 325.61 | 326.55 | 320.10 | 322.47 | -1.13% | 1,187,700 |
| 2026-04-06 | 321.21 | 327.27 | 321.21 | 326.17 | +0.94% | 867,100 |
| 2026-04-02 | 321.94 | 328.79 | 319.57 | 323.14 | +0.56% | 1,124,100 |
| 2026-04-01 | 321.88 | 325.39 | 318.00 | 321.34 | -0.45% | 1,081,400 |
| 2026-03-31 | 326.05 | 326.69 | 319.90 | 322.78 | -0.39% | 1,413,800 |
| 2026-03-30 | 316.45 | 325.38 | 315.66 | 324.06 | +3.32% | 1,216,600 |
| 2026-03-27 | 322.19 | 328.00 | 312.05 | 313.66 | -3.12% | 1,344,000 |
| 2026-03-26 | 320.83 | 326.60 | 320.83 | 323.77 | +0.72% | 1,211,500 |
| 2026-03-25 | 325.36 | 327.46 | 317.46 | 321.45 | -1.71% | 956,600 |
| 2026-03-24 | 327.56 | 328.84 | 324.96 | 327.03 | +0.33% | 1,180,400 |
| 2026-03-23 | 327.99 | 328.29 | 323.51 | 325.97 | +0.10% | 1,300,900 |
| 2026-03-20 | 317.24 | 326.56 | 317.24 | 325.63 | +2.73% | 2,408,700 |
| 2026-03-19 | 320.00 | 320.80 | 315.64 | 316.99 | -0.28% | 1,314,500 |
| 2026-03-18 | 319.67 | 320.30 | 314.80 | 317.88 | -1.03% | 984,200 |
| 2026-03-17 | 326.75 | 333.26 | 319.23 | 321.18 | -1.70% | 1,590,900 |
| 2026-03-16 | 322.60 | 327.26 | 320.13 | 326.75 | +1.66% | 1,067,800 |
| 2026-03-13 | 320.01 | 324.20 | 318.02 | 321.41 | +1.74% | 1,124,100 |
| 2026-03-12 | 316.00 | 323.26 | 313.81 | 315.91 | -0.31% | 1,866,400 |
| 2026-03-11 | 320.96 | 322.04 | 316.55 | 316.90 | -1.26% | 1,319,200 |
| 2026-03-10 | 332.22 | 332.22 | 320.44 | 320.96 | -3.57% | 1,412,300 |
| 2026-03-09 | 341.55 | 342.38 | 329.75 | 332.84 | -2.28% | 1,708,500 |
| 2026-03-06 | 337.37 | 341.46 | 334.09 | 340.60 | +0.54% | 1,187,700 |
| 2026-03-05 | 338.97 | 341.86 | 336.49 | 338.77 | -0.71% | 1,554,700 |
| 2026-03-04 | 337.42 | 344.65 | 337.37 | 341.18 | +0.62% | 2,026,300 |
| 2026-03-03 | 333.37 | 339.36 | 331.71 | 339.07 | +0.38% | 1,414,600 |
| 2026-03-02 | 332.02 | 340.32 | 331.96 | 337.80 | +0.69% | 1,270,700 |
| 2026-02-27 | 331.00 | 337.97 | 330.56 | 335.47 | +1.57% | 2,126,200 |
| 2026-02-26 | 325.50 | 332.00 | 325.16 | 330.27 | +1.73% | 1,062,000 |
| 2026-02-25 | 319.90 | 325.04 | 317.78 | 324.66 | +1.67% | 1,410,600 |
| 2026-02-24 | 316.96 | 321.30 | 312.58 | 319.33 | +1.27% | 1,471,200 |
| 2026-02-23 | 324.71 | 326.44 | 314.89 | 315.31 | -3.00% | 1,425,700 |
| 2026-02-20 | 325.94 | 327.20 | 323.18 | 325.07 | +0.24% | 1,265,000 |
| 2026-02-19 | 322.77 | 324.31 | 320.91 | 324.30 | +0.41% | 1,015,300 |
| 2026-02-18 | 322.93 | 326.41 | 321.03 | 322.98 | -0.91% | 1,172,300 |
| 2026-02-17 | 324.85 | 329.57 | 320.00 | 325.96 | +1.32% | 1,862,300 |
| 2026-02-13 | 317.95 | 322.39 | 313.16 | 321.70 | +2.29% | 2,220,200 |
| 2026-02-12 | 309.71 | 317.58 | 304.59 | 314.49 | +1.46% | 2,827,500 |
| 2026-02-11 | 315.32 | 317.91 | 307.01 | 309.97 | -2.50% | 2,960,100 |
| 2026-02-10 | 312.99 | 322.08 | 312.99 | 317.92 | +2.44% | 3,966,900 |
| 2026-02-09 | 340.76 | 343.92 | 309.13 | 310.34 | -9.27% | 3,885,900 |
| 2026-02-06 | 344.71 | 345.00 | 340.58 | 342.04 | -0.38% | 1,326,100 |
| 2026-02-05 | 350.32 | 353.68 | 343.19 | 343.36 | -1.96% | 1,421,900 |
| 2026-02-04 | 348.28 | 355.96 | 348.18 | 350.21 | +0.97% | 1,272,700 |
| 2026-02-03 | 347.31 | 351.15 | 343.20 | 346.84 | -0.79% | 1,266,300 |
| 2026-02-02 | 353.14 | 358.04 | 348.25 | 349.61 | -0.01% | 1,371,700 |
| 2026-01-30 | 346.96 | 351.80 | 341.17 | 349.64 | +1.95% | 1,938,400 |
| 2026-01-29 | 335.62 | 343.28 | 335.57 | 342.95 | +2.99% | 2,149,200 |
| 2026-01-28 | 329.41 | 335.23 | 327.53 | 333.00 | +0.68% | 1,341,200 |
| 2026-01-27 | 337.18 | 337.78 | 325.90 | 330.75 | -2.40% | 1,330,500 |
| 2026-01-26 | 339.32 | 342.00 | 336.92 | 338.87 | +0.05% | 1,156,700 |
| 2026-01-23 | 336.14 | 338.84 | 333.85 | 338.69 | +0.81% | 1,053,400 |
| 2026-01-22 | 331.99 | 336.58 | 330.30 | 335.96 | +0.96% | 1,370,700 |
| 2026-01-21 | 339.50 | 341.83 | 330.77 | 332.76 | -1.99% | 1,592,900 |
| 2026-01-20 | 341.38 | 342.97 | 337.44 | 339.50 | -1.27% | 1,645,500 |
| 2026-01-16 | 343.28 | 344.39 | 340.60 | 343.86 | -0.28% | 882,900 |
| 2026-01-15 | 346.00 | 347.06 | 342.70 | 344.84 | -0.34% | 915,900 |
| 2026-01-14 | 344.70 | 347.83 | 344.50 | 346.00 | +0.41% | 1,019,700 |
| 2026-01-13 | 348.88 | 350.70 | 343.23 | 344.59 | -1.68% | 1,028,400 |
| 2026-01-12 | 351.00 | 353.93 | 349.37 | 350.49 | -0.09% | 1,053,500 |
| 2026-01-09 | 351.41 | 353.36 | 350.12 | 350.80 | -0.33% | 678,400 |
| 2026-01-08 | 349.03 | 355.43 | 347.22 | 351.97 | +0.59% | 861,700 |
| 2026-01-07 | 348.13 | 353.16 | 342.92 | 349.92 | +0.07% | 1,390,700 |
| 2026-01-06 | 350.35 | 353.53 | 348.32 | 349.67 | -0.46% | 797,800 |
| 2026-01-05 | 340.91 | 352.16 | 339.39 | 351.29 | +2.04% | 992,700 |
| 2026-01-02 | 351.12 | 351.65 | 342.75 | 344.27 | -2.44% | 780,600 |
| 2025-12-31 | 356.96 | 356.96 | 352.82 | 352.88 | -1.01% | 453,300 |
| 2025-12-30 | 355.94 | 357.57 | 353.66 | 356.49 | -0.07% | 440,100 |
| 2025-12-29 | 356.66 | 358.55 | 355.40 | 356.73 | +0.02% | 433,200 |
| 2025-12-26 | 356.24 | 357.79 | 354.14 | 356.65 | +0.00% | 309,400 |
| 2025-12-24 | 355.00 | 358.14 | 354.02 | 356.65 | +0.22% | 283,900 |
| 2025-12-23 | 355.77 | 356.81 | 353.88 | 355.87 | +0.12% | 590,300 |
| 2025-12-22 | 348.87 | 356.77 | 348.00 | 355.46 | +1.55% | 827,000 |
| 2025-12-19 | 352.66 | 354.46 | 349.91 | 350.04 | -0.84% | 2,459,700 |
| 2025-12-18 | 350.70 | 354.06 | 350.70 | 353.02 | +0.28% | 980,100 |
| 2025-12-17 | 350.36 | 354.40 | 349.93 | 352.03 | +0.07% | 885,300 |
| 2025-12-16 | 352.84 | 354.72 | 351.04 | 351.80 | -0.65% | 1,121,400 |
| 2025-12-15 | 353.71 | 355.33 | 350.98 | 354.10 | +0.09% | 968,800 |
| 2025-12-12 | 348.64 | 354.12 | 347.39 | 353.79 | +1.84% | 1,074,300 |
| 2025-12-11 | 342.73 | 348.12 | 340.05 | 347.40 | +2.16% | 1,037,300 |
| 2025-12-10 | 346.26 | 346.42 | 336.43 | 340.05 | -1.77% | 1,300,300 |
| 2025-12-09 | 344.32 | 348.66 | 343.08 | 346.19 | +0.82% | 974,800 |
| 2025-12-08 | 343.23 | 344.55 | 341.03 | 343.39 | -0.52% | 875,000 |
| 2025-12-05 | 346.72 | 347.57 | 340.19 | 345.20 | -0.72% | 1,189,000 |
| 2025-12-04 | 344.45 | 347.99 | 344.45 | 347.71 | +0.95% | 690,800 |
| 2025-12-03 | 345.49 | 347.34 | 341.98 | 344.45 | -0.36% | 798,400 |
| 2025-12-02 | 351.04 | 351.66 | 345.54 | 345.70 | -1.56% | 982,900 |
| 2025-12-01 | 352.69 | 355.48 | 350.42 | 351.17 | -0.78% | 1,085,600 |
| 2025-11-28 | 352.12 | 355.62 | 351.49 | 353.92 | +0.37% | 400,100 |
| 2025-11-26 | 351.49 | 353.45 | 349.77 | 352.61 | +0.47% | 654,700 |
| 2025-11-25 | 344.06 | 351.50 | 342.80 | 350.96 | +1.82% | 692,600 |
| 2025-11-24 | 347.23 | 347.32 | 343.32 | 344.70 | -0.52% | 1,657,400 |
| 2025-11-21 | 346.00 | 349.70 | 344.15 | 346.51 | +0.18% | 1,967,900 |
| 2025-11-20 | 343.75 | 346.06 | 343.18 | 345.89 | +0.50% | 1,124,000 |
| 2025-11-19 | 348.36 | 349.98 | 339.17 | 344.17 | -1.25% | 1,112,000 |
| 2025-11-18 | 352.23 | 352.64 | 344.41 | 348.54 | -0.42% | 1,428,700 |
| 2025-11-17 | 350.00 | 353.00 | 347.27 | 350.02 | -0.03% | 1,609,300 |
| 2025-11-14 | 351.85 | 354.24 | 344.87 | 350.13 | -0.23% | 1,232,200 |
| 2025-11-13 | 349.94 | 352.99 | 347.28 | 350.94 | +0.24% | 1,183,600 |
| 2025-11-12 | 349.17 | 351.59 | 345.41 | 350.11 | +0.05% | 1,221,200 |
| 2025-11-11 | 346.74 | 350.43 | 344.64 | 349.93 | +1.47% | 789,600 |
| 2025-11-10 | 343.34 | 346.83 | 341.02 | 344.87 | -0.42% | 1,099,100 |
| 2025-11-07 | 340.94 | 348.18 | 339.01 | 346.32 | +1.86% | 1,500,600 |
| 2025-11-06 | 340.83 | 343.61 | 339.00 | 340.00 | -0.50% | 897,100 |
| 2025-11-05 | 344.21 | 346.76 | 341.70 | 341.70 | -0.73% | 1,344,800 |
| 2025-11-04 | 340.11 | 344.37 | 337.82 | 344.21 | +1.29% | 1,074,500 |
| 2025-11-03 | 339.42 | 340.37 | 331.14 | 339.84 | -0.25% | 1,474,800 |
| 2025-10-31 | 336.43 | 348.61 | 334.80 | 340.68 | +3.81% | 2,460,200 |
| 2025-10-30 | 328.07 | 330.71 | 326.51 | 328.19 | +0.65% | 2,212,400 |
| 2025-10-29 | 327.93 | 329.19 | 324.28 | 326.07 | -1.18% | 1,532,200 |
| 2025-10-28 | 335.21 | 335.21 | 329.00 | 329.96 | -2.05% | 1,212,800 |
| 2025-10-27 | 337.00 | 338.61 | 335.24 | 336.87 | -0.25% | 1,438,700 |
| 2025-10-24 | 340.50 | 342.33 | 337.34 | 337.73 | -1.06% | 842,000 |
| 2025-10-23 | 343.00 | 343.40 | 338.25 | 341.35 | -0.51% | 1,238,200 |
| 2025-10-22 | 343.32 | 344.29 | 340.51 | 343.10 | -0.10% | 1,189,500 |
| 2025-10-21 | 343.80 | 346.37 | 342.18 | 343.43 | -0.20% | 981,500 |
| 2025-10-20 | 347.22 | 347.22 | 341.40 | 344.11 | -0.72% | 935,100 |
| 2025-10-17 | 344.07 | 348.31 | 344.06 | 346.60 | +1.01% | 2,057,500 |
| 2025-10-16 | 348.92 | 349.04 | 337.92 | 343.12 | -3.56% | 1,820,400 |
| 2025-10-15 | 357.49 | 359.97 | 353.93 | 355.80 | -1.31% | 1,094,300 |
| 2025-10-14 | 353.78 | 360.82 | 352.40 | 360.51 | +2.02% | 845,600 |
| 2025-10-13 | 357.11 | 359.56 | 351.87 | 353.36 | -1.89% | 728,700 |
| 2025-10-10 | 362.26 | 363.29 | 359.18 | 360.15 | -0.07% | 628,100 |
| 2025-10-09 | 365.60 | 367.25 | 359.92 | 360.42 | -1.36% | 692,500 |
| 2025-10-08 | 366.49 | 370.31 | 364.94 | 365.38 | -0.42% | 1,114,400 |
| 2025-10-07 | 366.25 | 369.68 | 364.33 | 366.93 | +0.34% | 852,900 |
| 2025-10-06 | 364.07 | 367.00 | 362.12 | 365.70 | +0.52% | 1,109,200 |
| 2025-10-03 | 359.95 | 365.98 | 359.49 | 363.81 | +0.85% | 666,900 |
| 2025-10-02 | 357.47 | 362.23 | 354.61 | 360.73 | +0.17% | 621,300 |
| 2025-10-01 | 355.15 | 360.14 | 353.31 | 360.13 | +1.00% | 1,444,900 |
| 2025-09-30 | 354.52 | 357.01 | 351.80 | 356.58 | +0.55% | 1,022,800 |
| 2025-09-29 | 355.01 | 356.62 | 352.56 | 354.62 | -0.41% | 1,059,600 |
| 2025-09-26 | 354.17 | 358.99 | 351.49 | 356.08 | +1.26% | 824,600 |
| 2025-09-25 | 355.46 | 356.74 | 349.15 | 351.64 | -0.59% | 1,291,100 |
| 2025-09-24 | 352.84 | 356.28 | 352.50 | 353.74 | +0.19% | 981,300 |
| 2025-09-23 | 353.40 | 356.58 | 349.33 | 353.07 | -0.11% | 1,761,200 |
| 2025-09-22 | 350.56 | 355.21 | 349.21 | 353.46 | +0.61% | 1,275,900 |
| 2025-09-19 | 354.19 | 355.40 | 348.64 | 351.32 | -0.41% | 3,728,800 |
| 2025-09-18 | 355.64 | 357.83 | 352.69 | 352.76 | -1.46% | 1,392,900 |
| 2025-09-17 | 357.97 | 361.24 | 355.22 | 358.00 | +0.40% | 1,426,900 |
| 2025-09-16 | 361.26 | 362.76 | 356.15 | 356.57 | -1.99% | 1,351,500 |
| 2025-09-15 | 371.90 | 373.60 | 363.20 | 363.80 | -2.19% | 933,800 |
| 2025-09-12 | 371.56 | 374.05 | 369.81 | 371.95 | -0.08% | 844,400 |
| 2025-09-11 | 366.09 | 372.39 | 364.79 | 372.25 | +2.73% | 1,614,300 |
| 2025-09-10 | 364.78 | 365.36 | 361.08 | 362.37 | -1.09% | 798,900 |
| 2025-09-09 | 369.93 | 370.48 | 365.86 | 366.38 | -0.98% | 1,019,900 |
| 2025-09-08 | 370.54 | 370.54 | 365.47 | 370.01 | -0.14% | 1,043,500 |
| 2025-09-05 | 372.91 | 375.64 | 368.04 | 370.54 | -0.79% | 789,000 |
| 2025-09-04 | 375.48 | 375.87 | 370.85 | 373.49 | -0.14% | 751,300 |
| 2025-09-03 | 372.68 | 375.00 | 368.27 | 374.00 | +0.55% | 1,219,900 |
| 2025-09-02 | 367.63 | 372.75 | 365.96 | 371.96 | +1.35% | 1,285,600 |
| 2025-08-29 | 367.85 | 368.56 | 365.79 | 367.00 | +0.13% | 774,600 |
| 2025-08-28 | 367.77 | 368.04 | 364.03 | 366.54 | -0.50% | 711,200 |
| 2025-08-27 | 369.90 | 371.09 | 368.02 | 368.37 | -0.17% | 931,600 |
| 2025-08-26 | 369.14 | 371.11 | 367.02 | 369.00 | -0.52% | 1,449,900 |
| 2025-08-25 | 374.11 | 376.69 | 370.73 | 370.94 | -1.11% | 1,025,900 |
| 2025-08-22 | 377.45 | 378.70 | 373.85 | 375.10 | -0.05% | 1,190,600 |
| 2025-08-21 | 372.50 | 375.77 | 371.17 | 375.27 | +0.34% | 1,126,200 |
| 2025-08-20 | 373.93 | 378.68 | 372.72 | 374.00 | +0.31% | 1,105,000 |
| 2025-08-19 | 367.09 | 373.36 | 366.24 | 372.86 | +2.05% | 1,111,100 |
| 2025-08-18 | 366.08 | 369.78 | 365.21 | 365.37 | -0.45% | 1,323,900 |
| 2025-08-15 | 367.20 | 370.70 | 365.21 | 367.01 | +0.18% | 1,181,100 |
| 2025-08-14 | 371.04 | 372.04 | 365.14 | 366.35 | -1.23% | 1,292,900 |
| 2025-08-13 | 366.81 | 372.46 | 365.59 | 370.92 | +1.95% | 1,316,700 |
| 2025-08-12 | 368.48 | 368.66 | 360.25 | 363.81 | -1.16% | 2,991,600 |
| 2025-08-11 | 366.95 | 370.34 | 365.46 | 368.09 | +0.46% | 1,274,700 |
Most recent 250 sessions, newest first.
Seasonal returns
Best month historically: Nov (+6.33%). Worst month: Apr (-6.48%). Based on 5 years of daily data (2022–2026).
FAQ · from the current price data · as of 2026-08-07
Quick answers
What is Aon PLC's (AON) latest close?
358.30 on 2026-08-07, from the Closelook data lake's daily price record.
What is AON's 52-week high and low?
382.34 high and 304.59 low over the trailing 52 weeks, as of 2026-08-07.
What is Aon PLC's strongest and weakest month historically?
Historically, AON's strongest calendar month has been Nov (average +6.33%) and its weakest Apr (average -6.48%), based on 5 years of daily data (2022–2026).
How many years of seasonality does this cover?
5 years (2022–2026), computed from 965 daily bars in the Closelook data lake.