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International Bancshares Corporation (IBOC)

International Bancshares Corporation at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

International Bancshares Corporation (IBOC) is a Banks - Regional company based in US with a market capitalization of $4.5B. Revenue grew 1.0% year-over-year and the company generated $472.9M in free cash flow. This page tracks IBOC's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 2.1K employees · IPO Aug 30, 1995

Valuation

Valuation & price

$70.83 · as of May 17, 2026 · -9.0% vs 52w high

10.7

P/E ratio

Latest-FY diluted EPS

1.38

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$77.82$70.88$63.94Jul 25Dec 25Jul 26Jul 7, 25$69.90Jul 9, 25$70.01Jul 11, 25$69.37Jul 15, 25$67.81Jul 17, 25$69.68Jul 21, 25$69.67Jul 23, 25$70.01Jul 25, 25$69.46Jul 29, 25$70.15Jul 31, 25$68.18Aug 4, 25$69.20Aug 6, 25$69.36Aug 11, 25$68.78Aug 13, 25$70.86Aug 15, 25$68.28Aug 19, 25$68.24Aug 21, 25$68.86Aug 25, 25$72.27Aug 27, 25$72.68Aug 29, 25$71.54Sep 3, 25$71.08Sep 5, 25$71.58Sep 9, 25$70.38Sep 11, 25$71.29Sep 16, 25$68.85Sep 18, 25$70.95Sep 22, 25$68.84Sep 24, 25$69.35Sep 26, 25$70.11Sep 30, 25$68.75Oct 2, 25$68.23Oct 6, 25$68.89Oct 8, 25$67.88Oct 10, 25$65.75Oct 14, 25$68.58Oct 16, 25$64.75Oct 21, 25$66.38Oct 23, 25$66.59Oct 27, 25$67.97Oct 29, 25$66.50Oct 31, 25$66.38Nov 4, 25$67.75Nov 6, 25$67.31Nov 10, 25$65.83Nov 12, 25$65.58Nov 14, 25$66.19Nov 18, 25$63.94Nov 20, 25$64.53Nov 25, 25$66.89Nov 28, 25$66.48Dec 2, 25$66.15Dec 4, 25$68.93Dec 8, 25$69.64Dec 10, 25$72.39Dec 12, 25$72.50Dec 16, 25$71.46Dec 18, 25$71.70Dec 22, 25$69.83Dec 24, 25$68.79Dec 29, 25$67.53Jan 2, 26$66.84Jan 6, 26$68.75Jan 8, 26$70.08Jan 12, 26$68.39Jan 14, 26$69.33Jan 16, 26$70.38Jan 21, 26$71.49Jan 23, 26$68.34Jan 27, 26$68.80Jan 29, 26$69.26Feb 2, 26$71.89Feb 4, 26$74.19Feb 9, 26$73.43Feb 11, 26$71.75Feb 13, 26$72.07Feb 18, 26$72.08Feb 20, 26$71.54Feb 24, 26$68.86Feb 26, 26$70.77Mar 2, 26$68.38Mar 4, 26$68.62Mar 6, 26$66.53Mar 10, 26$66.87Mar 12, 26$67.32Mar 17, 26$67.04Mar 19, 26$66.95Mar 23, 26$67.61Mar 25, 26$67.71Mar 27, 26$67.36Mar 31, 26$67.29Apr 2, 26$67.77Apr 7, 26$68.23Apr 9, 26$71.70Apr 13, 26$72.34Apr 15, 26$71.17Apr 17, 26$72.31Apr 22, 26$71.11Apr 24, 26$71.31Apr 28, 26$72.51Apr 30, 26$71.74May 4, 26$71.12May 6, 26$72.56May 8, 26$73.27May 12, 26$72.40May 14, 26$71.68May 18, 26$72.20May 20, 26$72.42May 22, 26$72.78May 28, 26$72.41Jun 1, 26$70.92Jun 3, 26$71.00Jun 5, 26$72.98Jun 9, 26$74.48Jun 11, 26$75.67Jun 15, 26$75.09Jun 17, 26$73.59Jun 22, 26$75.11Jun 24, 26$76.46Jun 26, 26$77.82Jul 2, 26$75.90
$63.4252-week range$77.82
Loading valuation history…

Fundamentals

Key fundamentals

$4.5B

Market cap

1.0%

Revenue growth (YoY)

78.3%

Gross margin

$472.9M

Free cash flow (USD)

$168.3M

Net debt

0.2%

Share dilution

4/4

Graham criteria passed

Defensive-investor screen

Financial Services

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$549.6MFY 2017$565.5MFY 2018$630.9MFY 2019$647.2MFY 2020$577.6MFY 2021$620.4MFY 2022$712.9MFY 2023$970.1MFY 2024$1.0BFY 2025$1.1B
$549.6M$1.1B

Free cash flow by year

2016 → 2025

FY 2016$164.4MFY 2017$182.5MFY 2018$208.5MFY 2019$282.0MFY 2020$298.4MFY 2021$281.3MFY 2022$368.7MFY 2023$446.9MFY 2024$459.8MFY 2025$472.9M
$164.4M$472.9M

Gross margin by year

2021 → 2025

FY 202194.4%FY 202291.6%FY 202382.3%FY 202476.9%FY 202578.3%
94.4%78.3%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

0

Insider buys · 90 days

1

Insider sells · 90 days

Earnings

Last report: 10-Q filed May 7, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • Insider sellInsider Sell $720KNorton Larry A · Director · $720KMay 22, 2026Filing
  • 8-K eventAnnual Meeting ResultsMay 20, 2026Filing
  • 8-K eventBy-Laws AmendedMay 12, 2026Filing
  • 8-K eventEarnings ReleaseMay 7, 2026Filing
  • Quarterly report10-Q FiledMay 7, 2026Filing

Questions

Frequently asked questions

What is International Bancshares Corporation's market cap?

International Bancshares Corporation (IBOC) has a market capitalization of $4.5B.

What is IBOC's P/E ratio?

IBOC trades at a price-to-earnings ratio of 10.7, based on its latest fiscal-year diluted earnings per share and the most recent cached price.

What is IBOC's price-to-book (P/B) ratio?

IBOC trades at 1.38 times book value per share.

Are insiders buying IBOC stock?

SEC Form 4 filings show no open-market insider buys at International Bancshares Corporation in the last 90 days (1 sell).

Same arena

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TCBI

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FFIN

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SFBS

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Timeline

Every filing, insider trade & earnings on a price-anchored timeline

Filing Analyzer

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News

Latest press coverage in one feed

Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.