INTERACTIVE BROKERS GROUP IN

Ticker: IBKR CUSIP: 45841N107 Class: EQTY

DIMENSIONAL FUND ADVISORS LP's Holding History (CIK: 0000354204)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 1,002,476 Value ($000) $64,473 Avg Close $66.89 Range $58.88 - $73.26

Q3 2025

Shares 1,002,685 Value ($000) $68,995 Avg Close $62.79 Range $53.01 - $70.18

Q2 2025

Shares 1,033,709 Value ($000) $57,273 Avg Close $47.28 Range $32.69 - $55.48

Q1 2025

Shares 251,524 Value ($000) $41,643 Avg Close $49.31 Range $39.14 - $58.82

Q4 2024

Shares 257,249 Value ($000) $45,453 Avg Close $41.85 Range $33.69 - $48.10

Q3 2024

Shares 283,433 Value ($000) $39,496 Avg Close $30.72 Range $25.70 - $34.63

Q2 2024

Shares 301,688 Value ($000) $36,988 Avg Close $29.54 Range $26.42 - $31.96

Q1 2024

Shares 274,067 Value ($000) $30,616 Avg Close $24.63 Range $20.33 - $27.83

Q4 2023

Shares 276,180 Value ($000) $22,896 Avg Close $20.21 Range $17.92 - $22.24

Q3 2023

Shares 272,475 Value ($000) $23,587 Avg Close $21.95 Range $20.01 - $23.60

Q2 2023

Shares 270,764 Value ($000) $22,492 Avg Close $19.44 Range $17.44 - $21.23

Q1 2023

Shares 283,547 Value ($000) $23,409 Avg Close $20.03 Range $17.46 - $22.21

Q4 2022

Shares 300,537 Value ($000) $22 Avg Close $18.36 Range $15.40 - $20.01

Q3 2022

Shares 299,841 Value ($000) $19,163 Avg Close $15.12 Range $12.86 - $17.38

Q2 2022

Shares 298,424 Value ($000) $16,417 Avg Close $14.55 Range $12.78 - $16.65

Q1 2022

Shares 317,283 Value ($000) $20,913 Avg Close $16.85 Range $13.94 - $19.79

Q4 2021

Shares 328,426 Value ($000) $26,084 Avg Close $18.18 Range $15.23 - $20.25

Q3 2021

Shares 363,016 Value ($000) $22,632 Avg Close $15.36 Range $14.37 - $16.36

Q2 2021

Shares 376,370 Value ($000) $24,739 Avg Close $16.85 Range $15.38 - $18.89

Q1 2021

Shares 489,869 Value ($000) $35,780 Avg Close $17.53 Range $14.36 - $19.61

Q4 2020

Shares 861,814 Value ($000) $52,499 Avg Close $12.87 Range $11.33 - $15.30

Q3 2020

Shares 1,349,151 Value ($000) $65,202 Avg Close $12.09 Range $9.98 - $13.03

Q2 2020

Shares 1,432,304 Value ($000) $59,825 Avg Close $10.11 Range $8.76 - $11.44

Q1 2020

Shares 1,467,836 Value ($000) $63,362 Avg Close $11.67 Range $8.14 - $14.11

Q4 2019

Shares 1,513,352 Value ($000) $70,552 Avg Close $11.31 Range $10.72 - $12.50

Q3 2019

Shares 1,538,749 Value ($000) $82,753 Avg Close $11.96 Range $10.69 - $13.30

Q2 2019

Shares 1,573,475 Value ($000) $85,279 Avg Close $13.01 Range $11.86 - $14.22

Q1 2019

Shares 1,635,001 Value ($000) $84,824 Avg Close $12.59 Range $11.61 - $13.91

Q4 2018

Shares 1,663,449 Value ($000) $90,905 Avg Close $12.75 Range $11.08 - $14.96

Q3 2018

Shares 1,663,246 Value ($000) $91,995 Avg Close $14.48 Range $13.14 - $15.95

Q2 2018

Shares 1,704,442 Value ($000) $109,785 Avg Close $17.25 Range $15.13 - $19.13

Q1 2018

Shares 2,145,038 Value ($000) $144,232 Avg Close $15.75 Range $14.01 - $17.65

Q4 2017

Shares 2,166,688 Value ($000) $128,293 Avg Close $12.95 Range $10.63 - $14.82

Q3 2017

Shares 2,111,835 Value ($000) $95,116 Avg Close $9.67 Range $8.58 - $10.70

Q2 2017

Shares 1,996,966 Value ($000) $74,726 Avg Close $8.40 Range $7.80 - $9.05

Q1 2017

Shares 1,929,271 Value ($000) $66,984 Avg Close $8.78 Range $8.05 - $9.31

Q4 2016

Shares 1,829,766 Value ($000) $66,804 Avg Close $8.56 Range $7.51 - $9.35

Q3 2016

Shares 1,761,965 Value ($000) $62,144 Avg Close $8.30 Range $7.88 - $8.76

Q2 2016

Shares 1,687,327 Value ($000) $59,731 Avg Close $8.92 Range $7.90 - $9.67

Q1 2016

Shares 1,899,727 Value ($000) $74,697 Avg Close $8.23 Range $6.87 - $10.05

Q4 2015

Shares 2,390,727 Value ($000) $104,236 Avg Close $9.71 Range $8.53 - $10.45

Q3 2015

Shares 2,322,193 Value ($000) $91,655 Avg Close $9.55 Range $8.25 - $10.65

Q2 2015

Shares 2,329,719 Value ($000) $96,822 Avg Close $8.40 Range $7.45 - $9.84

Q1 2015

Shares 2,253,435 Value ($000) $76,661 Avg Close $7.33 Range $5.89 - $7.99

Q4 2014

Shares 2,203,723 Value ($000) $64,261 Avg Close $6.15 Range $5.28 - $6.88

Q3 2014

Shares 2,106,274 Value ($000) $52,552 Avg Close $5.45 Range $5.01 - $6.12

Q2 2014

Shares 2,046,556 Value ($000) $47,664 Avg Close $5.24 Range $4.63 - $5.56

Q1 2014

Shares 1,792,646 Value ($000) $38,845 Avg Close $5.03 Range $4.67 - $5.63

Q4 2013

Shares 1,566,274 Value ($000) $38,124 Avg Close $5.05 Range $4.23 - $5.67

Q3 2013

Shares 1,457,511 Value ($000) $27,357 Avg Close $3.86 Range $3.57 - $4.28

Q2 2013

Shares 1,383,458 Value ($000) $22,095 Avg Close $3.45 Range $3.06 - $3.76

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,002,476	$64,473	$66.89	$58.88 - $73.26
Q3 2025	1,002,685	$68,995	$62.79	$53.01 - $70.18
Q2 2025	1,033,709	$57,273	$47.28	$32.69 - $55.48
Q1 2025	251,524	$41,643	$49.31	$39.14 - $58.82
Q4 2024	257,249	$45,453	$41.85	$33.69 - $48.10
Q3 2024	283,433	$39,496	$30.72	$25.70 - $34.63
Q2 2024	301,688	$36,988	$29.54	$26.42 - $31.96
Q1 2024	274,067	$30,616	$24.63	$20.33 - $27.83
Q4 2023	276,180	$22,896	$20.21	$17.92 - $22.24
Q3 2023	272,475	$23,587	$21.95	$20.01 - $23.60
Q2 2023	270,764	$22,492	$19.44	$17.44 - $21.23
Q1 2023	283,547	$23,409	$20.03	$17.46 - $22.21
Q4 2022	300,537	$22	$18.36	$15.40 - $20.01
Q3 2022	299,841	$19,163	$15.12	$12.86 - $17.38
Q2 2022	298,424	$16,417	$14.55	$12.78 - $16.65
Q1 2022	317,283	$20,913	$16.85	$13.94 - $19.79
Q4 2021	328,426	$26,084	$18.18	$15.23 - $20.25
Q3 2021	363,016	$22,632	$15.36	$14.37 - $16.36
Q2 2021	376,370	$24,739	$16.85	$15.38 - $18.89
Q1 2021	489,869	$35,780	$17.53	$14.36 - $19.61
Q4 2020	861,814	$52,499	$12.87	$11.33 - $15.30
Q3 2020	1,349,151	$65,202	$12.09	$9.98 - $13.03
Q2 2020	1,432,304	$59,825	$10.11	$8.76 - $11.44
Q1 2020	1,467,836	$63,362	$11.67	$8.14 - $14.11
Q4 2019	1,513,352	$70,552	$11.31	$10.72 - $12.50
Q3 2019	1,538,749	$82,753	$11.96	$10.69 - $13.30
Q2 2019	1,573,475	$85,279	$13.01	$11.86 - $14.22
Q1 2019	1,635,001	$84,824	$12.59	$11.61 - $13.91
Q4 2018	1,663,449	$90,905	$12.75	$11.08 - $14.96
Q3 2018	1,663,246	$91,995	$14.48	$13.14 - $15.95
Q2 2018	1,704,442	$109,785	$17.25	$15.13 - $19.13
Q1 2018	2,145,038	$144,232	$15.75	$14.01 - $17.65
Q4 2017	2,166,688	$128,293	$12.95	$10.63 - $14.82
Q3 2017	2,111,835	$95,116	$9.67	$8.58 - $10.70
Q2 2017	1,996,966	$74,726	$8.40	$7.80 - $9.05
Q1 2017	1,929,271	$66,984	$8.78	$8.05 - $9.31
Q4 2016	1,829,766	$66,804	$8.56	$7.51 - $9.35
Q3 2016	1,761,965	$62,144	$8.30	$7.88 - $8.76
Q2 2016	1,687,327	$59,731	$8.92	$7.90 - $9.67
Q1 2016	1,899,727	$74,697	$8.23	$6.87 - $10.05
Q4 2015	2,390,727	$104,236	$9.71	$8.53 - $10.45
Q3 2015	2,322,193	$91,655	$9.55	$8.25 - $10.65
Q2 2015	2,329,719	$96,822	$8.40	$7.45 - $9.84
Q1 2015	2,253,435	$76,661	$7.33	$5.89 - $7.99
Q4 2014	2,203,723	$64,261	$6.15	$5.28 - $6.88
Q3 2014	2,106,274	$52,552	$5.45	$5.01 - $6.12
Q2 2014	2,046,556	$47,664	$5.24	$4.63 - $5.56
Q1 2014	1,792,646	$38,845	$5.03	$4.67 - $5.63
Q4 2013	1,566,274	$38,124	$5.05	$4.23 - $5.67
Q3 2013	1,457,511	$27,357	$3.86	$3.57 - $4.28
Q2 2013	1,383,458	$22,095	$3.45	$3.06 - $3.76