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Westlake Corp
WLK
WLK
336 hedge funds and large institutions have $5.15B invested in Westlake Corp in 2026 Q1 according to their latest regulatory filings, with 93 funds opening new positions, 116 increasing their positions, 86 reducing their positions, and 46 closing their positions.
New
Increased
Maintained
Reduced
Closed
102% more first-time investments, than exits
New positions opened: 93 | Existing positions closed: 46
58% more call options, than puts
Call options by funds: $26.7M | Put options by funds: $16.9M
50% more capital invested
Capital invested by funds: $3.44B → $5.15B (+$1.71B)
35% more repeat investments, than reductions
Existing positions increased: 116 | Existing positions reduced: 86
14% more funds holding
Funds holding: 296 → 336 (+40)
0% more funds holding in top 10
Funds holding in top 10: 3 → 3 (0)
1.73% less ownership
Funds ownership: 36.21% → 34.48% (-1.7%)
Holders
336
Holders Change
+40
Holders Change %
+13.51%
% of All Funds
4.14%
Holding in Top 10
3
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.04%
New
93
Increased
116
Reduced
86
Closed
46
Calls
$26.7M
Puts
$16.9M
Net Calls
+$9.78M
Net Calls Change
+$42.6M
Top Buyers
| 1 |
Capital World Investors
Los Angeles,
California
|
+$198M |
| 2 |
Fidelity Investments
Boston,
Massachusetts
|
+$105M |
| 3 |
OAG
Orbis Allan Gray
Hamilton,
Bermuda
|
+$87.9M |
| 4 |
Goldman Sachs
New York
|
+$62M |
| 5 |
Citadel Advisors
Miami,
Florida
|
+$49.7M |
Top Sellers
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
-$235M |
| 2 |
Victory Capital Management
San Antonio,
Texas
|
-$104M |
| 3 |
TSW
Thompson Siegel & Walmsley
Richmond,
Virginia
|
-$51.7M |
| 4 |
Holocene Advisors
New York
|
-$47.6M |
| 5 |
Dimensional Fund Advisors
Austin,
Texas
|
-$40.7M |
