International Bancshares Crp (IBOC) — Who's Buying and Selling (13F, Q2 2026)

IBOC ranks #2103 out of 37501 tracked stocks by institutional interest — one of the most closely watched names in our coverage.

IBOC is a top-conviction position for Tamar Securities, LLC — at 5.1% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.

The largest dollar stake in IBOC belongs to BlackRock, Inc., but the position matters far more to Tamar Securities, LLC, who has 5.1% of their own portfolio riding on it — a reminder that the biggest holder by size and the holder with the biggest bet aren't always the same fund.

BlackRock has added to its IBOC position for two straight quarters, increasing it by $89.5M to reach $535.3M today.

Azora Capital LP has trimmed its IBOC position for two straight quarters, cutting it by $34.0M while still holding $67.3M.

IBOC is up 1.4% today, and institutions have been net buyers of $507.7M this quarter — today's price move and the underlying institutional flow are pointing the same direction.

IBOC closed its latest fiscal year with net income of $412.3M, and currently trades at a P/E of 10.7.

• Profitable — net income of $412.3M in the latest fiscal year
• Revenue grew 0.7% year over year
• Net income improved year over year, from $409.2M to $412.3M
• Generated $491.1M in positive operating cash flow
• Liabilities run 3.61x equity — a highly leveraged balance sheet worth noting