WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

COMMERZBANK AKTIENGESELLSCHAFT /FI's Holding History (CIK: 0000852933)

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

Q2 2015

Shares 3,491 Value ($000) $239 Avg Close $62.10 Range $58.06 - $67.58

Q1 2015

Shares 3,584 Value ($000) $258 Avg Close $54.56 Range $46.07 - $62.01

Q4 2014

Shares 3,895 Value ($000) $238 Avg Close $57.80 Range $45.45 - $73.16

Q3 2014

Shares 4,186 Value ($000) $363 Avg Close $76.69 Range $70.51 - $83.52

Q2 2014

Shares 7,597 Value ($000) $636 Avg Close $63.36 Range $52.18 - $72.01

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2015	3,491	$239	$62.10	$58.06 - $67.58
Q1 2015	3,584	$258	$54.56	$46.07 - $62.01
Q4 2014	3,895	$238	$57.80	$45.45 - $73.16
Q3 2014	4,186	$363	$76.69	$70.51 - $83.52
Q2 2014	7,597	$636	$63.36	$52.18 - $72.01