Jane Street
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Jane Street’s Westlake Corp WLK Stock Holding History

Jane Street’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
Q1 		$1.71M Sell
14,600
-509,300
-97% -$49.4M ﹤0.01% 5394
2025
Q4 		$38.7M Buy
523,900
+468,100
+839% +$33.3M 0.01% 1089
2025
Q3 		$4.3M Buy
55,800
+52,100
+1,408% +$4.34M ﹤0.01% 3654
2025
Q2 		$281K Sell
3,700
-57,700
-94% -$4.72M ﹤0.01% 7979
2025
Q1 		$6.14M Buy
61,400
+52,600
+598% +$5.83M ﹤0.01% 2618
2024
Q4 		$1.01M Sell
8,800
-56,500
-87% -$7.35M ﹤0.01% 5375
2024
Q3 		$9.81M Buy
65,300
+57,500
+737% +$8.27M ﹤0.01% 1930
2024
Q2 		$1.13M Sell
7,800
-700
-8% -$108K ﹤0.01% 5540
2024
Q1 		$1.3M Buy
+8,500
New +$1.2M ﹤0.01% 4923
2023
Q4 		– Sell
-4,800
Closed -$598K – 9896
2023
Q3 		$598K Sell
4,800
-3,200
-40% -$411K ﹤0.01% 6005
2023
Q2 		$956K Sell
8,000
-1,700
-18% -$194K ﹤0.01% 5254
2023
Q1 		$1.13M Buy
9,700
+3,600
+59% +$415K ﹤0.01% 4787
2022
Q4 		$625K Sell
6,100
-5,300
-46% -$534K ﹤0.01% 5752
2022
Q3 		$990K Sell
11,400
-72,600
-86% -$6.96M ﹤0.01% 5424
2022
Q2 		$8.23M Sell
84,000
-700
-0.8% -$85.7K ﹤0.01% 1978
2022
Q1 		$10.5M Buy
84,700
+42,200
+99% +$4.6M ﹤0.01% 1939
2021
Q4 		$4.13M Sell
42,500
-1,500
-3% -$146K ﹤0.01% 3157
2021
Q3 		$4.01M Buy
44,000
+30,100
+217% +$2.58M ﹤0.01% 3107
2021
Q2 		$1.25M Buy
13,900
+1,700
+14% +$165K ﹤0.01% 5330
2021
Q1 		$1.08M Buy
12,200
+2,000
+20% +$174K ﹤0.01% 5300
2020
Q4 		$832K Buy
10,200
+6,300
+162% +$471K ﹤0.01% 4965
2020
Q3 		$247K Sell
3,900
-100
-3% -$5.91K ﹤0.01% 6158
2020
Q2 		$215K Buy
+4,000
New +$184K ﹤0.01% 6279

Other funds holding WLK

OAG
Orbis Allan Gray Hamilton, Bermuda $23.7B AUM 65.43% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
BIP
Brandes Investment Partners La Jolla, California $14.1B AUM 25.52% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Jane Street's WLK Position: Q1 2026 in Review

Jane Street opened a new position in Westlake Corp (WLK) in Q1 2026: 105,686 shares worth $12.3M. The stake represents ﹤0.01% of the portfolio and ranks #2280 among its holdings. This is a return to the name: Jane Street previously reported a position in WLK as recently as Q3 2025.

Jane Street first reported a position in WLK in Q1 2014 and has held it in 35 quarters since. The position peaked at $31.7M in Q2 2024. 337 funds tracked by Wall St. Rank hold WLK as of Q1 2026.

  • Jane Street held 105,686 shares of Westlake Corp worth $12.3M as of Q1 2026.
  • Westlake Corp was a new Jane Street position in Q1 2026.
  • Westlake Corp made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #2280 holding.
  • Jane Street first reported a position in Westlake Corp in Q1 2014 and has held it in 35 quarters since.
  • Jane Street's Westlake Corp position peaked at $31.7M in Q2 2024.
  • 337 funds tracked by Wall St. Rank held Westlake Corp as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.