The current institutional shareholding score of International Bancshares Corp is 7.00, ranking 70 out of 398 in the Banking Services industry. The latest institutional shareholding proportion is 81.23%, representing a quarter-over-quarter increase of 14.64%. The largest institutional shareholder is ETHSX, holding a total of 122.39K shares, representing 0.21% of shares outstanding, with 5.00% increase in holdings.