Holocene Advisors
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Holocene Advisors’s Westlake Corp WLK Stock Holding History

Holocene Advisors’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
-730,035
Closed -$85.3M – 1022
2026
Q1 		$85.3M Sell
730,035
-490,587
-40% -$47.6M 0.21% 126
2025
Q4 		$90.3M Buy
1,220,622
+366,438
+43% +$26.1M 0.19% 144
2025
Q3 		$65.8M Buy
854,184
+696,029
+440% +$58M 0.15% 152
2025
Q2 		$12M Buy
158,155
+59,082
+60% +$4.83M 0.03% 275
2025
Q1 		$9.91M Buy
99,073
+49,769
+101% +$5.51M 0.03% 286
2024
Q4 		$5.65M Buy
49,304
+38,789
+369% +$5.05M 0.02% 376
2024
Q3 		$1.58M Buy
+10,515
New +$1.51M 0.01% 568
2021
Q4 		– Sell
-36,297
Closed -$3.31M – 993
2021
Q3 		$3.31M Buy
+36,297
New +$3.11M 0.02% 424
2020
Q3 		– Sell
-35,195
Closed -$1.89M – 806
2020
Q2 		$1.89M Buy
35,195
+14,602
+71% +$672K 0.02% 321
2020
Q1 		$786K Sell
20,593
-13,369
-39% -$752K 0.01% 469
2019
Q4 		$2.38M Buy
33,962
+15,032
+79% +$1.01M 0.02% 347
2019
Q3 		$1.24M Buy
+18,930
New +$1.22M 0.01% 440
2019
Q2 		– Sell
-869,697
Closed -$59M – 757
2019
Q1 		$59M Buy
+869,697
New +$63M 0.9% 36
2018
Q2 		– Sell
-24,900
Closed -$2.77M – 753
2018
Q1 		$2.77M Sell
24,900
-248,220
-91% -$27.6M 0.06% 76
2017
Q4 		$29.1M Buy
+273,120
New +$25.3M 0.74% 47

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

Holocene Advisors's WLK Position: Q2 2026 in Review

Holocene Advisors sold out of Westlake Corp (WLK) in Q2 2026, closing a stake of 730,035 shares — an estimated $85.3M sold.

Holocene Advisors first reported a position in WLK in Q4 2017 and held it in 15 quarters. The position peaked at $90.3M in Q4 2025. 358 funds tracked by Wall St. Rank hold WLK as of Q2 2026.

  • Holocene Advisors reported no remaining Westlake Corp position as of Q2 2026 after selling out during the quarter.
  • Holocene Advisors sold 730,035 Westlake Corp shares in Q2 2026, an estimated $85.3M.
  • Holocene Advisors first reported a position in Westlake Corp in Q4 2017 and held it in 15 quarters.
  • Holocene Advisors's Westlake Corp position peaked at $90.3M in Q4 2025.
  • 358 funds tracked by Wall St. Rank held Westlake Corp as of Q2 2026.

Based on Holocene Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.