International Bancshares Corporation (IBOC) NASDAQ

Currency In USD

IBOC Historical Return

If you invested $1000 in International Bancshares Corporation (IBOC) 10 years ago, it would be worth $3,068.34 as of September 11, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,936.66, while $1000 invested 1 year ago would be worth $1,005.24. This corresponds to total returns of 206.83%, 93.67%, 0.52%, respectively, with annualized returns of 11.86%, 14.14%, 0.52%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

IBOC Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
September 11, 2026	71.74	70.94	70.94	71.96	70.54	320,524
September 10, 2026	70.61	71.04	71.04	71.07	69.87	335,455
September 09, 2026	71.03	70.61	70.61	71.06	70.13	313,320
September 08, 2026	71.74	71.36	71.36	71.86	71.18	349,690
September 04, 2026	71.31	71.91	71.91	72.08	71.04	269,077
September 03, 2026	70.95	71.54	71.54	71.94	70.5	301,821
September 02, 2026	70.03	70.62	70.62	71.14	69.98	409,089
September 01, 2026	70.19	69.64	69.64	71.01	69.39	320,490
August 31, 2026	70.82	70.16	70.16	70.82	70.01	272,148
August 28, 2026	70.68	70.93	70.93	71.29	70.43	286,272
August 27, 2026	70.57	70.61	70.61	70.71	69.6	243,890
August 26, 2026	71.03	70.77	70.77	71.34	70.61	230,779
August 25, 2026	71.54	70.81	70.81	71.54	70.7	183,202
August 24, 2026	71.47	71.54	71.54	72.42	71.44	228,182
August 21, 2026	72.3	71.49	71.49	72.57	71.23	274,975
August 20, 2026	71.36	71.7	71.7	71.94	71.01	293,504
August 19, 2026	72.57	71.53	71.53	72.83	71.34	273,287
August 18, 2026	73.5	72.61	72.61	73.54	72.27	238,245
August 17, 2026	73.11	73.14	73.14	73.8	72.88	219,965
August 14, 2026	72.68	73.38	73.38	73.4	72.67	193,523
August 13, 2026	73.12	73.41	73.41	73.51	72.78	398,330
August 12, 2026	72.04	72.71	72.71	73	71.77	394,609
August 11, 2026	72.94	72.04	72.04	73.1	71.96	274,149
August 10, 2026	73.19	72.81	72.81	73.51	72.05	406,122
August 07, 2026	74.68	73.55	73.55	75.83	72.32	386,224
August 06, 2026	76.4	75.11	75.11	76.64	75	391,842
August 05, 2026	76.63	75.9	75.9	76.63	75.52	331,188
August 04, 2026	76.13	76.25	76.25	76.94	75.8	443,975
August 03, 2026	77.2	76.22	76.22	77.94	75.93	361,176
July 31, 2026	76.26	76.54	76.54	76.62	74.31	313,147
July 30, 2026	76.82	76.34	76.34	77.14	76.25	188,473
July 29, 2026	77.33	76.66	76.66	77.8	76.58	358,172
July 28, 2026	77	77.68	77.68	78.02	77	201,844
July 27, 2026	77.09	76.65	76.65	77.54	76.4	228,932
July 23, 2026	75.22	75.76	75.76	75.8	74.51	308,413
July 22, 2026	75.79	75.89	75.89	76	75.06	277,685
July 21, 2026	75.73	75.67	75.67	75.96	74.93	295,060
July 20, 2026	76.48	76.09	76.09	76.6	75.75	289,771
July 17, 2026	77.03	76.53	76.53	77.83	75.91	343,661
July 16, 2026	75.62	77.84	77.84	77.86	75.62	361,429
July 15, 2026	75.4	75.62	75.62	76.12	75.23	260,869
July 14, 2026	75.92	75.22	75.22	76.15	74.96	315,803
July 13, 2026	75.82	75.87	75.87	76.35	75.16	306,418
July 10, 2026	75.15	75.42	75.42	75.6	74.95	216,877
July 09, 2026	74.67	75.15	75.15	75.72	74.65	345,619
July 08, 2026	75.94	74.61	74.61	75.94	74.39	407,550
July 07, 2026	76.26	75.98	75.98	76.67	75.8	272,942
July 06, 2026	75.77	76.11	76.11	76.17	74.66	241,081
July 02, 2026	77.09	75.9	75.9	77.38	75.51	318,650
July 01, 2026	76.16	77.02	77.02	77.35	75.69	426,623
June 30, 2026	76.18	75.95	75.95	76.43	75.44	449,452
June 29, 2026	77.15	76.14	76.14	77.31	76.04	496,354
June 26, 2026	77.52	77.82	77.82	78.46	76.87	1.7M
June 25, 2026	76.56	77.1	77.1	77.35	76.54	355,941
June 24, 2026	76.12	76.46	76.46	76.92	75.93	445,540
June 23, 2026	75.33	75.92	75.92	76.33	75.27	350,449
June 22, 2026	73.74	75.11	75.11	75.28	73.74	372,758
June 18, 2026	73.96	73.56	73.56	74.86	73.41	1.04M
June 17, 2026	75.17	73.59	73.59	75.87	72.82	449,481
June 16, 2026	75.72	75.51	75.51	75.92	75.03	275,472