2009-02-03 00:28:02 -

International Bancshares Corporation ("IBC") (NASDAQ: IBOC) today announced that it has been added to the S&P 400 Index in the S&P Regional Banks Sub-Industry Index. Standard & Poor's Index Services, the world's leading index provider, maintains a wide variety of investable and benchmark indices to meet an array of investor needs.


"IBC is delighted to be selected to

be included in the S&P MidCap 400 Index," said IBC Chairman Dennis E. Nixon. "Being listed on the S&P 400 Index places us alongside a group of other diverse companies who are highly respected around the country."


About the S&P MidCap 400


The S&P 400 Index is a U.S. market capitalization weighted benchmark index made up of the securities of 400 companies in diverse industries.


About IBC


IBC is a multi-bank financial holding company headquartered in Laredo, Texas, with more than 265 facilities and more than 420 ATMs serving more than 101 communities in Texas and Oklahoma.





International Bancshares Corporation

Judith Wawroski, 956-722-7611