Twin Tree Management
WLK icon

Twin Tree Management’s Westlake Corp WLK Stock Holding History

Twin Tree Management’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
2026
Q2 		– Sell
-35,977
Closed -$3.51M – 1733
2026
Q1 		$4.2M Buy
+35,977
New +$3.49M 0.09% 256
2025
Q4 		– Sell
-16,037
Closed -$1.14M – 1754
2025
Q3 		$1.24M Sell
16,037
-13,323
-45% -$1.11M 0.01% 1149
2025
Q2 		$2.23M Buy
+29,360
New +$2.4M ﹤0.01% 1231
2025
Q1 		– Sell
-73
Closed -$8.37K – 1976
2024
Q4 		$8.37K Sell
73
-5,054
-99% -$658K ﹤0.01% 1500
2024
Q3 		$771K Sell
5,127
-3,063
-37% -$441K ﹤0.01% 1256
2024
Q2 		$1.19M Buy
+8,190
New +$1.26M ﹤0.01% 1035
2018
Q4 		– Sell
-2,176
Closed -$181K – 1537
2018
Q3 		$181K Buy
+2,176
New +$213K ﹤0.01% 929
2017
Q4 		– Sell
-56
Closed -$5K – 1188
2017
Q3 		$5K Buy
+56
New +$4.11K ﹤0.01% 935
2017
Q2 		– Sell
-13,967
Closed -$923K – 1179
2017
Q1 		$923K Sell
13,967
-39,860
-74% -$2.52M 0.01% 697
2016
Q4 		$3.01M Buy
53,827
+4,221
+9% +$231K 0.03% 511
2016
Q3 		$2.65M Buy
+49,606
New +$2.39M 0.03% 430
2016
Q2 		– Sell
-7,725
Closed -$358K – 1415
2016
Q1 		$358K Buy
7,725
+7,384
+2,165% +$335K 0.01% 894
2015
Q4 		$19K Buy
+341
New +$19.8K ﹤0.01% 1327
2015
Q2 		– Sell
-11,951
Closed -$869K – 1474
2015
Q1 		$860K Buy
+11,951
New +$766K 0.02% 640

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 $3.37T AUM 44.26% 1-Year Est. Return

Twin Tree Management's WLK Position: Q2 2026 in Review

Twin Tree Management sold out of Westlake Corp (WLK) in Q2 2026, closing a stake of 35,977 shares — an estimated $3.51M sold.

Twin Tree Management first reported a position in WLK in Q1 2015 and held it in 14 quarters. The position peaked at $4.2M in Q1 2026. 358 funds tracked by Wall St. Rank hold WLK as of Q2 2026.

  • Twin Tree Management reported no remaining Westlake Corp position as of Q2 2026 after selling out during the quarter.
  • Twin Tree Management sold 35,977 Westlake Corp shares in Q2 2026, an estimated $3.51M.
  • Twin Tree Management first reported a position in Westlake Corp in Q1 2015 and held it in 14 quarters.
  • Twin Tree Management's Westlake Corp position peaked at $4.2M in Q1 2026.
  • 358 funds tracked by Wall St. Rank held Westlake Corp as of Q2 2026.

Based on Twin Tree Management's 13F filing for Q2 2026, filed 12 Aug 2026.