Interactive Brokers Group, Inc. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2018-03-20 | 70.900 | 72.250 | 70.900 | 71.750 | 17.035 | 1,484,800 |
| 2018-03-19 | 71.000 | 71.460 | 69.400 | 70.500 | 16.739 | 1,814,800 |
| 2018-03-16 | 70.850 | 71.580 | 70.570 | 71.070 | 16.874 | 2,970,400 |
| 2018-03-15 | 72.020 | 72.310 | 70.180 | 70.670 | 16.779 | 2,618,000 |
| 2018-03-14 | 72.290 | 72.770 | 71.500 | 71.840 | 17.057 | 1,962,400 |
| 2018-03-13 | 73.330 | 73.540 | 72.160 | 72.460 | 17.204 | 2,176,400 |
| 2018-03-12 | 74.050 | 74.110 | 72.610 | 73.320 | 17.408 | 1,815,600 |
| 2018-03-09 | 71.880 | 73.850 | 71.880 | 73.760 | 17.513 | 2,316,800 |
| 2018-03-08 | 71.350 | 71.660 | 70.360 | 71.460 | 16.967 | 1,565,200 |
| 2018-03-07 | 70.240 | 71.470 | 69.710 | 70.820 | 16.815 | 2,593,200 |
| 2018-03-06 | 70.010 | 71.300 | 68.910 | 71.250 | 16.917 | 3,271,600 |
| 2018-03-05 | 67.550 | 69.970 | 66.970 | 69.500 | 16.501 | 2,779,200 |
| 2018-03-02 | 66.230 | 68.000 | 65.010 | 67.820 | 16.102 | 2,725,600 |
| 2018-03-01 | 69.670 | 69.670 | 65.660 | 66.460 | 15.779 | 4,347,200 |
| 2018-02-28 | 70.590 | 71.050 | 69.400 | 69.400 | 16.478 | 2,616,800 |
| 2018-02-27 | 70.000 | 71.230 | 70.000 | 70.200 | 16.644 | 2,663,600 |
| 2018-02-26 | 69.160 | 70.260 | 68.800 | 70.000 | 16.596 | 2,829,200 |
| 2018-02-23 | 67.990 | 69.240 | 67.900 | 69.230 | 16.414 | 1,990,400 |
| 2018-02-22 | 68.650 | 69.160 | 67.390 | 67.520 | 16.008 | 1,941,200 |
| 2018-02-21 | 68.060 | 69.660 | 68.060 | 68.490 | 16.238 | 3,191,200 |
| 2018-02-20 | 67.300 | 68.790 | 67.300 | 67.870 | 16.091 | 2,013,600 |
| 2018-02-16 | 67.830 | 68.580 | 67.230 | 67.370 | 15.973 | 4,258,800 |
| 2018-02-15 | 67.090 | 68.150 | 66.180 | 67.880 | 16.094 | 2,646,000 |
| 2018-02-14 | 63.730 | 66.770 | 63.590 | 66.630 | 15.797 | 2,498,000 |
| 2018-02-13 | 63.240 | 64.000 | 63.120 | 63.870 | 15.143 | 1,492,400 |
| 2018-02-12 | 62.630 | 64.190 | 62.500 | 63.680 | 15.098 | 1,952,000 |
| 2018-02-09 | 62.350 | 63.180 | 59.330 | 62.020 | 14.704 | 4,462,400 |
| 2018-02-08 | 65.100 | 65.460 | 61.720 | 61.740 | 14.638 | 3,602,400 |
| 2018-02-07 | 63.240 | 65.380 | 63.030 | 64.750 | 15.352 | 3,682,800 |
| 2018-02-06 | 61.150 | 63.630 | 59.900 | 63.390 | 15.029 | 6,218,400 |
| 2018-02-05 | 64.710 | 66.170 | 60.850 | 62.160 | 14.738 | 4,058,000 |
| 2018-02-02 | 66.790 | 67.420 | 65.390 | 65.390 | 15.503 | 2,584,400 |
| 2018-02-01 | 63.890 | 66.910 | 63.690 | 66.800 | 15.838 | 3,832,400 |
| 2018-01-31 | 63.900 | 64.410 | 63.520 | 63.990 | 15.171 | 1,406,400 |
| 2018-01-30 | 63.390 | 64.390 | 63.020 | 63.600 | 15.079 | 1,847,200 |
| 2018-01-29 | 64.200 | 64.800 | 63.700 | 63.930 | 15.157 | 2,363,200 |
| 2018-01-26 | 63.230 | 64.260 | 62.880 | 64.200 | 15.221 | 2,801,600 |
| 2018-01-25 | 64.420 | 64.520 | 62.780 | 63.080 | 14.956 | 2,972,000 |
| 2018-01-24 | 65.300 | 65.580 | 63.620 | 64.340 | 15.254 | 2,284,400 |
| 2018-01-23 | 63.980 | 65.200 | 63.770 | 65.100 | 15.435 | 4,271,200 |
| 2018-01-22 | 62.400 | 63.670 | 62.350 | 63.670 | 15.096 | 4,287,600 |
| 2018-01-19 | 61.750 | 62.570 | 61.420 | 62.480 | 14.813 | 4,477,200 |
| 2018-01-18 | 62.440 | 62.580 | 61.730 | 61.780 | 14.647 | 3,731,600 |
| 2018-01-17 | 61.350 | 63.570 | 61.050 | 62.610 | 14.844 | 5,502,400 |
| 2018-01-16 | 63.800 | 64.030 | 62.140 | 62.450 | 14.806 | 6,050,000 |
| 2018-01-12 | 62.620 | 63.160 | 62.300 | 63.100 | 14.960 | 2,310,000 |
| 2018-01-11 | 62.510 | 62.610 | 62.050 | 62.440 | 14.804 | 1,052,800 |
| 2018-01-10 | 62.490 | 62.850 | 62.000 | 62.150 | 14.735 | 2,607,200 |
| 2018-01-09 | 61.060 | 62.850 | 61.060 | 62.610 | 14.844 | 3,753,600 |
| 2018-01-08 | 59.420 | 61.180 | 59.250 | 60.920 | 14.444 | 3,517,200 |
| 2018-01-05 | 59.860 | 60.460 | 59.630 | 60.340 | 14.306 | 3,556,400 |
| 2018-01-04 | 59.560 | 60.010 | 59.000 | 59.550 | 14.119 | 4,879,200 |
| 2018-01-03 | 59.510 | 60.150 | 58.920 | 59.140 | 14.022 | 3,767,200 |
| 2018-01-02 | 59.030 | 60.120 | 59.030 | 59.540 | 14.116 | 4,624,400 |
| 2017-12-29 | 60.060 | 60.130 | 59.110 | 59.210 | 14.038 | 44,133,200 |
| 2017-12-28 | 59.760 | 60.080 | 59.510 | 60.020 | 14.230 | 1,770,400 |
| 2017-12-27 | 60.140 | 60.360 | 59.530 | 59.770 | 14.171 | 2,020,400 |
| 2017-12-26 | 60.330 | 60.490 | 60.130 | 60.160 | 14.263 | 736,400 |
| 2017-12-22 | 60.040 | 60.470 | 60.020 | 60.320 | 14.301 | 1,818,400 |
| 2017-12-21 | 60.030 | 60.870 | 59.810 | 59.910 | 14.204 | 2,744,800 |
Stock splits
| Date | Split (new : old) |
|---|
| 2025-06-18 | 4:1 |
Dividends
| Ex-date | Amount |
|---|
| 2026-09-01 | 0.0880 USD |
| 2026-06-01 | 0.0880 USD |
| 2026-02-27 | 0.0800 USD |
| 2025-12-01 | 0.0800 USD |
| 2025-08-29 | 0.0800 USD |
| 2025-05-30 | 0.3200 USD |
| 2025-02-28 | 0.2500 USD |
| 2024-11-29 | 0.2500 USD |
| 2024-08-30 | 0.2500 USD |
| 2024-05-31 | 0.2500 USD |
| 2024-02-29 | 0.1000 USD |
| 2023-11-30 | 0.1000 USD |
| 2023-08-31 | 0.1000 USD |
| 2023-05-31 | 0.1000 USD |
| 2023-02-28 | 0.1000 USD |
| 2022-11-30 | 0.1000 USD |
| 2022-08-31 | 0.1000 USD |
| 2022-05-31 | 0.1000 USD |
| 2022-02-28 | 0.1000 USD |
| 2021-11-30 | 0.1000 USD |
| 2021-08-31 | 0.1000 USD |
| 2021-05-28 | 0.1000 USD |
| 2021-02-26 | 0.1000 USD |
| 2020-11-30 | 0.1000 USD |
| 2020-08-31 | 0.1000 USD |
| 2020-05-29 | 0.1000 USD |
| 2020-02-27 | 0.1000 USD |
| 2019-11-27 | 0.1000 USD |
| 2019-08-29 | 0.1000 USD |
| 2019-05-30 | 0.1000 USD |
| 2019-02-28 | 0.1000 USD |
Open, high, low and close are as traded (USD). Adjusted close accounts for splits and dividends. Educational only, not financial advice.