Westlake Corp
358 hedge funds and large institutions have $2.9B invested in Westlake Corp in 2026 Q2 according to their latest regulatory filings, with 87 funds opening new positions, 109 increasing their positions, 119 reducing their positions, and 64 closing their positions.
115% more call options, than puts
Call options by funds: $12.6M | Put options by funds: $5.84M
36% more first-time investments, than exits
New positions opened: 87 | Existing positions closed: 64
6% more funds holding
Funds holding: 339 → 358 (+19)
8% less repeat investments, than reductions
Existing positions increased: 109 | Existing positions reduced: 119
3.48% less ownership
Funds ownership: 34.49% → 31.01% (-3.5%)
33% less funds holding in top 10
Funds holding in top 10: 3 → 2 (-1)
44% less capital invested
Capital invested by funds: $5.15B → $2.9B (-$2.24B)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AQR Capital Management
Greenwich,
Connecticut
|
+$128M |
| 2 |
Dimensional Fund Advisors
Austin,
Texas
|
+$57.2M |
| 3 |
Jacobs Levy Equity Management
Florham Park,
New Jersey
|
+$35.2M |
| 4 |
Citadel Advisors
Miami,
Florida
|
+$33.1M |
| 5 |
ECM
ExodusPoint Capital Management
New York
|
+$32M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
OAG
Orbis Allan Gray
Hamilton,
Bermuda
|
-$313M |
| 2 |
Wellington Management Group
Boston,
Massachusetts
|
-$161M |
| 3 |
Capital World Investors
Los Angeles,
California
|
-$134M |
| 4 |
Fidelity Investments
Boston,
Massachusetts
|
-$92.9M |
| 5 |
Holocene Advisors
New York
|
-$85.3M |
WLK Hedge Fund Activity: Q2 2026 in Review
358 of the 8,305 institutional investors tracked by Wall St. Rank reported a position in Westlake Corp (WLK) for Q2 2026, worth a combined $2.9B — down 44% from $5.15B a quarter earlier.
Buyers outnumbered sellers: 87 funds opened new WLK positions and 64 closed out — a net gain of 23 holders — while 109 added to existing stakes and 119 trimmed.
The largest buyer was AQR Capital Management, adding an estimated $128M. The largest seller was Orbis Allan Gray, cutting an estimated $313M.
- 358 institutional investors held Westlake Corp (WLK) as of Q2 2026, up from 339 in Q1 2026.
- Funds reported $2.9B of Westlake Corp stock for Q2 2026, down 44% quarter-over-quarter.
- 87 funds opened new Westlake Corp positions in Q2 2026 and 64 closed out, a net change of +23 holders.
- The largest Westlake Corp buyer in Q2 2026 was AQR Capital Management, an estimated $128M added.
- The largest Westlake Corp seller in Q2 2026 was Orbis Allan Gray, an estimated $313M sold.
Based on aggregated 13F filings for Q2 2026.