IBOC — INTERNATIONAL BANCSHARES CORP
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-01-04.
Performance
Technicals
Dividends
Measured signals that fired on IBOC
| date | signal | measured base rate |
|---|---|---|
| 2026-08-10 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-06-26 | Volume shock without a price move price | -1.33% over 21 days · t = -4.53 · n = 16,432 statistically distinguishable from its control group |
| 2026-06-11 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
| 2026-06-10 | Breakout to a 52-week high price | -1.00% over 21 days · t = -8.58 · n = 24,386 statistically distinguishable from its control group |
| 2026-06-05 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-05-08 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-05-21 | Norton Larry A Director | Open-market sale | 10.0K | 72.00 | 720.0K |
| 2026-02-06 | WAWROSKI JUDITH I TREASURER/PAO | Option exercise | 875 | 38.30 | 33.5K |
| 2026-02-06 | WAWROSKI JUDITH I TREASURER/PAO | Option exercise | 300 | 16.84 | 5.1K |
| 2025-09-05 | WAWROSKI JUDITH I TREASURER/PAO | Disposition to issuer | 600 | 71.58 | 42.9K |
| 2025-09-05 | WAWROSKI JUDITH I TREASURER/PAO | Option exercise | 600 | 39.33 | 23.6K |
| 2025-08-15 | SANCHEZ ANTONIO R JR Director | Open-market sale | 40.0K | 68.12 | 2.7M |
| 2025-08-14 | SANCHEZ ANTONIO R JR Director | Open-market sale | 80.0K | 69.83 | 5.6M |
| 2025-06-05 | WAWROSKI JUDITH I TREASURER/PAO | Option exercise | 700 | 38.30 | 26.8K |
| 2025-06-05 | WAWROSKI JUDITH I TREASURER/PAO | Option exercise | 300 | 16.84 | 5.1K |
| 2024-12-17 | SANCHEZ ANTONIO R JR Director | Gift | 9.0K | 0.00 | 0 |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| BlackRock, Inc. | 447.1M | 6.6M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 228.9M | 3.4M |
| AMERICAN CENTURY COMPANIES INC | 217.3M | 3.2M |
| DIMENSIONAL FUND ADVISORS LP | 214.4M | 3.2M |
| STATE STREET CORP | 176.6M | 2.6M |
| VANGUARD CAPITAL MANAGEMENT LLC | 166.5M | 2.5M |
| GEODE CAPITAL MANAGEMENT, LLC | 100.3M | 1.5M |
| Azora Capital LP | 88.3M | 1.3M |
| FIRST TRUST ADVISORS LP | 76.5M | 1.1M |
| Boston Trust Walden Corp | 73.2M | 1.1M |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
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