Arthur J. Gallagher & Co. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2018-12-06 | 75.080 | 75.200 | 73.690 | 75.060 | 67.988 | 1,738,100 |
| 2018-12-04 | 77.650 | 78.330 | 76.030 | 76.110 | 68.562 | 1,402,800 |
| 2018-12-03 | 77.770 | 78.330 | 76.230 | 77.960 | 70.229 | 2,063,600 |
| 2018-11-30 | 77.900 | 78.750 | 77.070 | 77.070 | 69.427 | 4,205,800 |
| 2018-11-29 | 77.720 | 78.480 | 77.720 | 78.030 | 70.292 | 961,600 |
| 2018-11-28 | 76.910 | 78.130 | 76.800 | 78.090 | 70.346 | 1,163,600 |
| 2018-11-27 | 76.640 | 77.260 | 76.370 | 76.930 | 69.301 | 1,021,100 |
| 2018-11-26 | 77.270 | 77.370 | 76.340 | 76.860 | 69.238 | 1,087,400 |
| 2018-11-23 | 76.010 | 77.210 | 75.980 | 76.670 | 69.067 | 421,400 |
| 2018-11-21 | 77.190 | 77.830 | 76.450 | 76.460 | 68.877 | 998,000 |
| 2018-11-20 | 77.990 | 78.080 | 77.010 | 77.150 | 69.499 | 1,026,600 |
| 2018-11-19 | 78.380 | 79.030 | 78.020 | 78.320 | 70.553 | 1,196,500 |
| 2018-11-16 | 76.950 | 78.510 | 76.800 | 78.380 | 70.607 | 1,103,300 |
| 2018-11-15 | 76.040 | 77.420 | 75.770 | 77.370 | 69.697 | 1,086,900 |
| 2018-11-14 | 77.880 | 77.880 | 75.880 | 76.420 | 68.841 | 1,145,900 |
| 2018-11-13 | 77.550 | 78.500 | 77.070 | 77.500 | 69.814 | 1,247,100 |
| 2018-11-12 | 78.120 | 78.330 | 77.490 | 77.660 | 69.958 | 1,077,600 |
| 2018-11-09 | 77.780 | 78.370 | 77.580 | 78.050 | 70.310 | 963,300 |
| 2018-11-08 | 76.790 | 77.770 | 76.740 | 77.770 | 70.058 | 872,500 |
| 2018-11-07 | 76.130 | 76.980 | 75.650 | 76.960 | 69.328 | 940,200 |
| 2018-11-06 | 75.760 | 76.250 | 75.400 | 75.840 | 68.319 | 1,039,200 |
| 2018-11-05 | 74.820 | 75.570 | 74.330 | 75.510 | 68.022 | 988,600 |
| 2018-11-02 | 75.320 | 75.700 | 73.530 | 74.670 | 67.265 | 1,275,900 |
| 2018-11-01 | 74.100 | 74.780 | 73.420 | 74.600 | 67.202 | 1,302,100 |
| 2018-10-31 | 74.790 | 75.330 | 73.960 | 74.010 | 66.670 | 1,334,400 |
| 2018-10-30 | 74.170 | 74.420 | 73.130 | 74.310 | 66.941 | 1,114,200 |
| 2018-10-29 | 74.850 | 75.550 | 73.060 | 73.850 | 66.526 | 1,532,300 |
| 2018-10-26 | 72.560 | 74.600 | 72.410 | 74.030 | 66.688 | 1,571,400 |
| 2018-10-25 | 71.560 | 73.540 | 71.180 | 72.970 | 65.734 | 1,054,700 |
| 2018-10-24 | 72.190 | 72.390 | 71.220 | 71.350 | 64.274 | 1,089,800 |
| 2018-10-23 | 71.610 | 72.530 | 71.220 | 72.350 | 65.175 | 1,481,500 |
| 2018-10-22 | 72.790 | 72.950 | 72.300 | 72.720 | 65.508 | 577,300 |
| 2018-10-19 | 71.680 | 73.040 | 71.510 | 72.670 | 65.463 | 1,212,900 |
| 2018-10-18 | 72.050 | 72.630 | 71.320 | 71.660 | 64.553 | 879,300 |
| 2018-10-17 | 71.830 | 72.580 | 71.350 | 72.110 | 64.959 | 709,400 |
| 2018-10-16 | 71.000 | 71.930 | 70.510 | 71.880 | 64.752 | 935,700 |
| 2018-10-15 | 71.230 | 71.580 | 70.790 | 70.790 | 63.770 | 885,900 |
| 2018-10-12 | 71.940 | 72.000 | 70.400 | 71.250 | 64.184 | 1,019,200 |
| 2018-10-11 | 73.210 | 73.300 | 71.280 | 71.290 | 64.220 | 1,012,400 |
| 2018-10-10 | 75.120 | 75.320 | 73.250 | 73.280 | 66.013 | 709,800 |
| 2018-10-09 | 75.500 | 75.750 | 75.110 | 75.410 | 67.932 | 543,400 |
| 2018-10-08 | 74.680 | 75.650 | 74.560 | 75.480 | 67.995 | 461,300 |
| 2018-10-05 | 75.640 | 75.990 | 74.790 | 74.850 | 67.427 | 759,300 |
| 2018-10-04 | 75.110 | 75.760 | 75.060 | 75.710 | 68.202 | 638,600 |
| 2018-10-03 | 75.610 | 75.700 | 75.090 | 75.110 | 67.661 | 580,900 |
| 2018-10-02 | 75.080 | 75.410 | 74.740 | 75.350 | 67.878 | 639,000 |
| 2018-10-01 | 74.770 | 75.190 | 74.500 | 75.170 | 67.715 | 542,800 |
| 2018-09-28 | 74.310 | 74.600 | 74.050 | 74.440 | 67.058 | 681,600 |
| 2018-09-27 | 74.110 | 74.750 | 73.950 | 74.450 | 67.067 | 561,500 |
| 2018-09-26 | 74.610 | 74.610 | 73.900 | 74.020 | 66.679 | 472,700 |
| 2018-09-25 | 75.090 | 75.470 | 74.480 | 74.550 | 67.157 | 554,500 |
| 2018-09-24 | 75.830 | 75.830 | 75.030 | 75.150 | 67.697 | 692,700 |
| 2018-09-21 | 76.310 | 76.490 | 75.850 | 75.910 | 68.382 | 1,370,900 |
| 2018-09-20 | 76.150 | 76.220 | 75.760 | 76.130 | 68.580 | 790,900 |
| 2018-09-19 | 75.130 | 76.050 | 74.980 | 75.730 | 68.220 | 1,147,800 |
| 2018-09-18 | 75.040 | 75.270 | 74.160 | 75.030 | 67.589 | 766,300 |
| 2018-09-17 | 75.000 | 75.220 | 74.830 | 75.120 | 67.670 | 914,900 |
| 2018-09-14 | 75.000 | 75.190 | 74.660 | 74.890 | 67.463 | 567,300 |
| 2018-09-13 | 73.660 | 74.840 | 73.620 | 74.620 | 67.220 | 832,600 |
| 2018-09-12 | 74.000 | 74.140 | 73.520 | 73.550 | 66.256 | 472,900 |
Stock splits
| Date | Split (new : old) |
|---|
| 2001-01-19 | 2:1 |
| 2000-03-16 | 2:1 |
Dividends
| Ex-date | Amount |
|---|
| 2026-09-08 | 0.7000 USD |
| 2026-06-05 | 0.7000 USD |
| 2026-03-06 | 0.7000 USD |
| 2025-12-05 | 0.6500 USD |
| 2025-09-05 | 0.6500 USD |
| 2025-06-06 | 0.6500 USD |
| 2025-03-07 | 0.6500 USD |
| 2024-12-06 | 0.6000 USD |
| 2024-09-06 | 0.6000 USD |
| 2024-06-07 | 0.6000 USD |
| 2024-02-29 | 0.6000 USD |
| 2023-11-30 | 0.5500 USD |
| 2023-08-31 | 0.5500 USD |
| 2023-06-01 | 0.5500 USD |
| 2023-03-02 | 0.5500 USD |
| 2022-12-01 | 0.5100 USD |
| 2022-09-01 | 0.5100 USD |
| 2022-06-02 | 0.5100 USD |
| 2022-03-03 | 0.5100 USD |
| 2021-12-02 | 0.4800 USD |
| 2021-09-02 | 0.4800 USD |
| 2021-06-03 | 0.4800 USD |
| 2021-03-04 | 0.4800 USD |
| 2020-12-03 | 0.4500 USD |
| 2020-09-03 | 0.4500 USD |
| 2020-06-04 | 0.4500 USD |
| 2020-03-05 | 0.4500 USD |
| 2019-12-05 | 0.4300 USD |
| 2019-09-05 | 0.4300 USD |
| 2019-06-06 | 0.4300 USD |
| 2019-02-28 | 0.4300 USD |
Open, high, low and close are as traded (USD). Adjusted close accounts for splits and dividends. Educational only, not financial advice.