Two Sigma Securities’s Westlake Corp WLK Stock Holding History

Two Sigma Securities’s Portfolio WLK Stock Details WLK Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2020 Q1	–	Sell	-8,300	Closed	-$582K	–	2416
2019 Q4	$582K	Buy	+8,300	New	+$557K	﹤0.01%	1361
2018 Q4	–	Sell	-7,800	Closed	-$648K	–	2903
2018 Q3	$648K	Sell	7,800 -2,700	-26%	-$264K	﹤0.01%	1257
2018 Q2	$1.13M	Sell	10,500 -3,800	-27%	-$426K	0.01%	1260
2018 Q1	$1.59M	Buy	14,300 +7,100	+99%	+$790K	0.01%	1008
2017 Q4	$767K	Buy	7,200 +4,200	+140%	+$389K	0.02%	518
2017 Q3	$249K	Buy	+3,000	New	+$220K	0.02%	468

Other funds holding WLK

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

OAG

Orbis Allan Gray Hamilton, Bermuda $29.1B AUM 60.8% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

BIP

Brandes Investment Partners La Jolla, California $14.3B AUM 23.11% 1-Year Est. Return

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Two Sigma Securities's WLK Position: Q2 2026 in Review

Two Sigma Securities opened a new position in Westlake Corp (WLK) in Q2 2026: 6,190 shares worth $452K. The stake represents 0.04% of the portfolio and ranks #641 among its holdings. This is a return to the name: Two Sigma Securities previously reported a position in WLK as recently as Q3 2024.

Two Sigma Securities first reported a position in WLK in Q3 2017 and has held it in 6 quarters since. The position peaked at $542K in Q3 2018. 360 funds tracked by Wall St. Rank hold WLK as of Q2 2026.

Two Sigma Securities held 6,190 shares of Westlake Corp worth $452K as of Q2 2026.
Westlake Corp was a new Two Sigma Securities position in Q2 2026.
Westlake Corp made up 0.04% of Two Sigma Securities's portfolio in Q2 2026, its #641 holding.
Two Sigma Securities first reported a position in Westlake Corp in Q3 2017 and has held it in 6 quarters since.
Two Sigma Securities's Westlake Corp position peaked at $542K in Q3 2018.
360 funds tracked by Wall St. Rank held Westlake Corp as of Q2 2026.

Based on Two Sigma Securities's 13F filing for Q2 2026, filed 14 Aug 2026.