INTERNATIONAL BANCSHARES COR

Ticker: IBOC CUSIP: 459044103 Class: Common Stock

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

Note: Option positions (PUT/CALL) are excluded.

Q3 2018

Shares 90 Value ($000) $4 Avg Close $36.82 Range $34.24 - $38.67

Q4 2017

Shares 8,442 Value ($000) $335 Avg Close $32.26 Range $30.03 - $34.31

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	90	$4	$36.82	$34.24 - $38.67
Q4 2017	8,442	$335	$32.26	$30.03 - $34.31