WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

PROFUND ADVISORS LLC's Holding History (CIK: 0001129919)

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

Q1 2018

Shares 1,806 Value ($000) $201 Avg Close $98.39 Range $86.89 - $107.41

Q4 2017

Shares 3,197 Value ($000) $341 Avg Close $81.78 Range $72.56 - $95.02

Q3 2016

Shares 3,878 Value ($000) $207 Avg Close $41.92 Range $34.93 - $47.03

Q3 2014

Shares 2,784 Value ($000) $241 Avg Close $76.69 Range $70.51 - $83.52

Q2 2014

Shares 3,234 Value ($000) $271 Avg Close $63.36 Range $52.18 - $72.01

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	1,806	$201	$98.39	$86.89 - $107.41
Q4 2017	3,197	$341	$81.78	$72.56 - $95.02
Q3 2016	3,878	$207	$41.92	$34.93 - $47.03
Q3 2014	2,784	$241	$76.69	$70.51 - $83.52
Q2 2014	3,234	$271	$63.36	$52.18 - $72.01