IBKR: Historical Prices for Interactive Brokers Group, Inc.

Date	Open	High	Low	Close	Volume	Adj Close*
25-Nov-09	16.71	17.00	16.68	16.92	306,700	16.92
24-Nov-09	16.90	16.91	16.54	16.70	571,300	16.70
23-Nov-09	17.05	17.18	16.84	16.90	319,100	16.90
20-Nov-09	16.89	17.06	16.87	16.88	163,400	16.88
19-Nov-09	17.08	17.10	16.84	16.90	350,900	16.90
18-Nov-09	16.94	17.23	16.90	17.12	275,100	17.12
17-Nov-09	17.27	17.29	16.93	17.03	320,400	17.03
16-Nov-09	17.41	17.55	17.24	17.41	356,800	17.41
13-Nov-09	17.16	17.31	17.00	17.17	260,400	17.17
12-Nov-09	17.24	17.39	17.02	17.07	235,000	17.07
11-Nov-09	17.10	17.40	17.10	17.31	304,700	17.31
10-Nov-09	17.03	17.14	16.91	17.05	384,200	17.05
9-Nov-09	17.14	17.17	17.04	17.14	386,900	17.14
6-Nov-09	16.92	17.15	16.75	17.06	316,000	17.06
5-Nov-09	16.85	17.16	16.85	17.07	484,100	17.07
4-Nov-09	16.95	17.13	16.66	16.82	800,200	16.82
3-Nov-09	16.22	17.06	16.04	16.90	1,139,100	16.90
2-Nov-09	16.05	16.33	15.95	16.31	686,200	16.31
30-Oct-09	16.37	16.37	15.86	16.01	621,600	16.01
29-Oct-09	16.32	16.49	16.11	16.37	450,600	16.37
28-Oct-09	16.20	16.41	16.08	16.22	628,000	16.22
27-Oct-09	16.62	16.63	16.21	16.37	935,800	16.37
26-Oct-09	16.84	16.88	16.41	16.52	1,030,900	16.52
23-Oct-09	17.97	18.24	16.65	16.84	3,091,700	16.84
22-Oct-09	19.98	20.20	19.08	19.56	1,000,200	19.56
21-Oct-09	20.37	20.61	19.87	19.96	789,600	19.96
20-Oct-09	20.36	20.60	20.28	20.53	412,600	20.53
19-Oct-09	20.22	20.62	20.10	20.49	339,900	20.49
16-Oct-09	20.37	20.84	20.11	20.33	523,000	20.33
15-Oct-09	20.76	20.99	20.62	20.93	180,600	20.93
14-Oct-09	20.52	20.91	20.52	20.90	267,000	20.90
13-Oct-09	20.58	20.60	20.15	20.34	138,300	20.34
12-Oct-09	20.69	20.73	20.31	20.56	184,900	20.56
9-Oct-09	20.51	20.75	20.31	20.56	227,600	20.56
8-Oct-09	20.50	20.75	20.38	20.60	253,700	20.60
7-Oct-09	20.60	20.61	20.21	20.37	188,100	20.37
6-Oct-09	20.25	20.62	20.08	20.59	482,800	20.59
5-Oct-09	19.59	20.01	19.53	20.00	370,200	20.00
2-Oct-09	19.52	19.60	19.20	19.30	477,900	19.30
1-Oct-09	19.94	20.15	19.73	19.83	403,900	19.83
30-Sep-09	20.18	20.37	19.79	19.87	499,200	19.87
29-Sep-09	19.83	20.26	19.60	20.01	668,500	20.01
28-Sep-09	19.00	19.72	18.75	19.72	741,900	19.72
25-Sep-09	19.06	19.14	18.62	19.03	535,100	19.03
24-Sep-09	19.80	19.85	19.11	19.28	243,100	19.28
23-Sep-09	20.03	20.23	19.60	19.81	615,800	19.81
22-Sep-09	19.85	20.06	19.78	20.02	311,000	20.02
21-Sep-09	19.85	19.93	19.44	19.80	324,000	19.80
18-Sep-09	19.68	20.00	19.62	19.86	389,900	19.86
17-Sep-09	19.92	20.08	19.64	19.70	274,500	19.70
16-Sep-09	19.38	19.95	19.25	19.95	511,400	19.95
15-Sep-09	18.98	19.29	18.91	19.20	354,400	19.20
14-Sep-09	18.60	18.95	18.54	18.92	347,100	18.92
11-Sep-09	18.79	19.02	18.62	18.94	422,700	18.94
10-Sep-09	18.43	18.68	18.22	18.67	420,300	18.67
9-Sep-09	18.36	18.64	18.16	18.37	305,500	18.37
8-Sep-09	18.43	18.43	18.18	18.32	197,800	18.32
4-Sep-09	17.86	18.20	17.75	18.15	158,300	18.15
3-Sep-09	17.99	17.99	17.63	17.88	436,600	17.88
2-Sep-09	18.20	18.54	17.85	17.86	349,500	17.86
1-Sep-09	19.10	19.30	18.12	18.20	563,900	18.20
31-Aug-09	18.98	19.03	18.64	18.98	305,200	18.98
28-Aug-09	19.13	19.13	18.90	18.99	275,500	18.99
27-Aug-09	19.09	19.13	18.77	19.07	203,500	19.07
26-Aug-09	19.04	19.21	18.81	19.21	237,100	19.21
25-Aug-09	19.07	19.09	18.84	18.98	163,400	18.98
* Close price adjusted for dividends and splits.

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