WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

Marathon Trading Investment Management LLC's Holding History (CIK: 0001572748)

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

Q1 2015

Shares 23,282 Value ($000) $1,675 Avg Close $54.56 Range $46.07 - $62.01

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2015	23,282	$1,675	$54.56	$46.07 - $62.01