International Bancshares market cap IBOC

Share price times shares outstanding: what the whole company sells for, since 2010.

International Bancshares is worth $4.1B at the close on Oct 20, 2026, at $66.52 a share.

That is down 3% over the last year and up 52% over five years.

Its highest close in our data was $4.8B in Jun 2026.

Market cap over time

Year	End of year	Low	High	Change
2026 so far	$4.1B	$4.1B	$4.8B	−3%
2025	$4.3B	$3.5B	$4.5B	+7%
2024	$4B	$3.2B	$4.6B	+18%
2023	$3.4B	$2.6B	$3.4B	+19%
2022	$2.8B	$2.4B	$3.3B	+6%
2021	$2.7B	$2.4B	$3.3B	+13%
2020	$2.4B	$1.1B	$2.8B	−16%
2019	$2.8B	$2.2B	$2.8B	+24%
2018	$2.3B	$2.2B	$3.1B	−14%
2017	$2.6B	$2.2B	$2.8B	−3%
2016	$2.7B	$1.4B	$2.8B	+58%
2015	$1.7B	$1.5B	$2B	−3%
2014	$1.8B	$1.5B	$1.9B	−2%
2013	$1.8B	$1.3B	$1.8B	+49%
2012	$1.2B	$1.2B	$1.4B	−2%
2011	$1.2B	$883.2M	$1.4B	−9%
2010	$1.4B	$1.1B	$1.4B	n/a

Companies in Banks - Regional nearest International Bancshares' size, closest first, today.

Company	Market cap
IBOCInternational Bancshares	$4.1B
FBPFirst Bancorp	$4.2B
CVBFCVB Financial	$4B
CATYCathay General Bancorp	$4.3B
FLGFlagstar Bank, National Association	$4.3B
INDBIndependent Bank	$4B
FFINFirst Financial Bankshares	$4.3B
UCBUnited Community Banks	$4.5B
RNSTRenasant	$3.8B
SFBSServisFirst Bancshares	$4.5B
TFSLTFS Financial CORP	$4.7B
Peer median	$4.3B