---
schema_version: "secwatch.filing_event.v1"
accession: "0001558370-24-004650"
form_type: "8-K"
ticker: "IBOC"
cik: "0000315709"
company_name: "INTERNATIONAL BANCSHARES CORP"
filed_at: "2024-04-03T23:59:59+00:00"
generated_at: "2026-06-04T03:03:21.178871+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# International Bancshares ranked #1 by S&P Global Market Intelligence for 2023

## Summary
- Ranked #1 among U.S. public banks with total assets exceeding $10B as of Dec 31, 2023.
- Assessment based on returns, growth, efficiency, and balance sheet strength criteria.
- CEO Dennis Nixon attributed recognition to strong risk management and cost controls.
- IBC operates 165 facilities and 256 ATMs across Texas and Oklahoma.

## SEC filing metadata
- accession: 0001558370-24-004650
- form_type: 8-K
- ticker: IBOC
- cik: 0000315709
- company_name: INTERNATIONAL BANCSHARES CORP
- filed_at: 2024-04-03T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 8.01, 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/315709/000155837024004650/0001558370-24-004650-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/315709/000155837024004650/iboc-20240403x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001558370-24-004650
- JSON: https://secwatch.observer/filing/0001558370-24-004650.json
- Plain text: https://secwatch.observer/filing/0001558370-24-004650.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.