Two Sigma Investments
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Two Sigma Investments’s Westlake Corp WLK Stock Holding History

Two Sigma Investments’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
2019
Q3 		– Sell
-3,600
Closed -$250K – 3840
2019
Q2 		$250K Buy
+3,600
New +$240K ﹤0.01% 2963
2018
Q3 		– Sell
-2,000
Closed -$215K – 3633
2018
Q2 		$215K Buy
+2,000
New +$224K ﹤0.01% 3107

Other funds holding WLK

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
T. Rowe Price Associates
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
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Vanguard Portfolio Management
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
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

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

Two Sigma Investments opened a new position in Westlake Corp (WLK) in Q2 2026: 45,357 shares worth $3.31M. The stake represents ﹤0.01% of the portfolio and ranks #2542 among its holdings. This is a return to the name: Two Sigma Investments previously reported a position in WLK as recently as Q4 2025.

Two Sigma Investments first reported a position in WLK in Q2 2013 and has held it in 35 quarters since. The position peaked at $26.6M in Q1 2025. 360 funds tracked by Wall St. Rank hold WLK as of Q2 2026.

  • Two Sigma Investments held 45,357 shares of Westlake Corp worth $3.31M as of Q2 2026.
  • Westlake Corp was a new Two Sigma Investments position in Q2 2026.
  • Westlake Corp made up ﹤0.01% of Two Sigma Investments's portfolio in Q2 2026, its #2542 holding.
  • Two Sigma Investments first reported a position in Westlake Corp in Q2 2013 and has held it in 35 quarters since.
  • Two Sigma Investments's Westlake Corp position peaked at $26.6M in Q1 2025.
  • 360 funds tracked by Wall St. Rank held Westlake Corp as of Q2 2026.

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