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Westlake Corp

294 hedge funds and large institutions have $3.19B invested in Westlake Corp in 2025 Q3 according to their latest regulatory filings, with 55 funds opening new positions, 99 increasing their positions, 104 reducing their positions, and 55 closing their positions.

New
Increased
Maintained
Reduced
Closed

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

more ownership

Funds ownership:

more first-time investments, than exits

New positions opened: | Existing positions closed:

5% less repeat investments, than reductions

Existing positions increased: 99 | Existing positions reduced: 104

3% less funds holding

Funds holding: 304294 (-10)

67% less call options, than puts

Call options by funds: $19.3M | Put options by funds: $57.8M

Holders
294
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
3
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$19.3M
Puts
$57.8M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
STA
126
Summit Trail Advisors
New York
$1.01M
Jane Street
127
Jane Street
New York
$1M
FC
128
Farringdon Capital
United Kingdom
$965K
JG
129
Jain Global
New York
$957K
LPL Financial
130
LPL Financial
California
$953K
ETC
131
Exchange Traded Concepts
Oklahoma
$943K
LIP
132
Lighthouse Investment Partners
Florida
$899K
YCM
133
Yousif Capital Management
Michigan
$864K
Ohio Public Employees Retirement System (OPERS)
134
Ohio Public Employees Retirement System (OPERS)
Ohio
$804K
SRL
135
Scientech Research LLC
New Jersey
$751K
BOTPPF
136
Board of the Pension Protection Fund
United Kingdom
$732K
Universal-Beteiligungs- und Servicegesellschaft
137
Universal-Beteiligungs- und Servicegesellschaft
Germany
$730K
VPIM
138
Vanguard Personalized Indexing Management
California
$720K
LSERS
139
Louisiana State Employees Retirement System
Louisiana
$717K
BCM
140
Bayesian Capital Management
New York
$712K
Pathstone Holdings
141
Pathstone Holdings
New Jersey
$694K
Susquehanna International Group
142
Susquehanna International Group
Pennsylvania
$682K
COPPSERS
143
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$659K
Handelsbanken Fonder
144
Handelsbanken Fonder
Sweden
$655K
SOMRS
145
State of Michigan Retirement System
Michigan
$609K
QCG
146
Quadrant Capital Group
Ohio
$608K
Thrivent Financial for Lutherans
147
Thrivent Financial for Lutherans
Minnesota
$590K
AAM
148
Advisors Asset Management
Colorado
$587K
NMIMC
149
Northwestern Mutual Investment Management Company
Wisconsin
$573K
BHCM
150
Brevan Howard Capital Management
Jersey
$571K