WESTLAKE CORPORATION WLK
COM · Common Stock · CUSIP 960413102 · ISIN US9604131022
American petrochemical company
- SectorMaterials
- IndustryIndustrial Organic Chemicals
- HeadquartersHouston, TX
- Founded1986
- Websitewestlake.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($19.9m this quarter). Holder counts are more reliable. Shares outstanding: 128.6m as of 2024-07-30, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $144.81. Options: 10 managers hold calls ($49.8m notional), 12 hold puts ($23.7m).
Trends to Q2 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 321 |
| Q4 2022 | 343 |
| Q1 2023 | 342 |
| Q2 2023 | 340 |
| Q3 2023 | 335 |
| Q4 2023 | 357 |
| Q1 2024 | 347 |
| Q2 2024 | 382 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 167 | 159 |
| Q1 2023 | 156 | 165 |
| Q2 2023 | 143 | 176 |
| Q3 2023 | 124 | 182 |
| Q4 2023 | 145 | 165 |
| Q1 2024 | 159 | 170 |
| Q2 2024 | 187 | 164 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2023 | $11.0m | $5.7m | 0.52 |
| Q4 2023 | $9.1m | $5.9m | 0.65 |
| Q1 2024 | $17.0m | $118.8m | 6.98 |
| Q2 2024 | $49.8m | $23.7m | 0.48 |
Biggest buyers
| VANGUARD GROUP INC | Added | +480.0k |
| Nuveen Asset Management, LLC | Added | +324.2k |
| JANE STREET GROUP, LLC | Added | +210.3k |
| 1832 Asset Management L.P. | New | +187.7k |
| BANK OF MONTREAL /CAN/ | Added | +145.7k |
| BARCLAYS PLC | Added | +111.6k |
| MOORE CAPITAL MANAGEMENT, LP | New | +98.9k |
| HRT FINANCIAL LP | New | +82.4k |
| JACOBS LEVY EQUITY MANAGEMENT, INC | New | +74.5k |
| Man Group plc | Added | +71.4k |
Biggest sellers
| Pacer Advisors, Inc. | Reduced | -1.3m |
| MORGAN STANLEY | Reduced | -629.8k |
| Mirae Asset Global Investments Co., Ltd. | Reduced | -565.5k |
| VICTORY CAPITAL MANAGEMENT INC | Reduced | -365.9k |
| FMR LLC | Reduced | -242.8k |
| Balyasny Asset Management L.P. | Sold out | -201.3k |
| Appian Way Asset Management LP | Reduced | -115.8k |
| Invesco Ltd. | Reduced | -110.7k |
| Grantham, Mayo, Van Otterloo & Co. LLC | Reduced | -100.0k |
| BANK OF AMERICA CORP /DE/ | Reduced | -99.4k |
Biggest calls
| BARCLAYS PLC | New | $38.2m264.0k shares |
| CITADEL ADVISORS LLC | Reduced | $4.7m32.6k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $3.4m23.5k shares |
| Walleye Trading LLC | New | $1.7m11.8k shares |
| SIMPLEX TRADING, LLC | Reduced | $579.0k4.0k shares |
| GTS SECURITIES LLC | Reduced | $448.9k3.1k shares |
| WOLVERINE TRADING, LLC | New | $318.6k2.2k shares |
| Walleye Capital LLC | Added | $202.7k1.4k shares |
| PEAK6 Investments LLC | Unchanged | $144.8k1.0k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CITADEL ADVISORS LLC | Added | $6.2m43.0k shares |
| WOLVERINE TRADING, LLC | New | $4.9m33.8k shares |
| Twin Tree Management, LP | New | $3.7m25.4k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $2.7m18.9k shares |
| Walleye Trading LLC | Reduced | $1.9m13.1k shares |
| JANE STREET GROUP, LLC | Reduced | $1.1m7.8k shares |
| SIMPLEX TRADING, LLC | Reduced | $984.0k6.8k shares |
| PEAK6 Investments LLC | Added | $955.8k6.6k shares |
| GTS SECURITIES LLC | Added | $709.6k4.9k shares |
| Walleye Capital LLC | Added | $434.5k3.0k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Insider purchases and sales in Q2 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2022 | 0 | — | 2 | $157.0k | — |
| Q4 2022 | 0 | — | 0 | — | — |
| Q1 2023 | 0 | — | 0 | — | — |
| Q2 2023 | 0 | — | 0 | — | — |
| Q3 2023 | 0 | — | 1 | $131.0k | — |
| Q4 2023 | 0 | — | 1 | $550.1k | — |
| Q1 2024 | 0 | — | 2 | $1.9m | — |
| Q2 2024 | 0 | — | 2 | $1.3m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-05-09 | Buesinger Robert F. EVP, HIP, IT & Digital | Sold | $554.8k3.5k shares |
| 2024-05-03 | Bender Mark Steven EVP & CFO | Sold | $753.3k5.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2024
| Manager | Shares | Change |
|---|---|---|
| FMR LLC 0.04% of their portfolio | 4.1m $595.6m | Reduced -242.8k |
| VANGUARD GROUP INC 0.01% of their portfolio | 3.8m $556.4m | Added +480.0k |
| BlackRock Inc. 0.01% of their portfolio | 3.4m $493.5m | Reduced -71.8k |
| VICTORY CAPITAL MANAGEMENT INC 0.41% of their portfolio | 2.8m $411.8m | Reduced -365.9k |
| Orbis Allan Gray Ltd 2.51% of their portfolio | 2.8m $402.5m | Added +64.8k |
| Capital World Investors 0.03% of their portfolio | 1.3m $193.3m | Added +17 |
| STATE STREET CORP 0.01% of their portfolio | 1.2m $172.2m | Added +1.8k |
| Nuveen Asset Management, LLC 0.04% of their portfolio | 942.3k $136.5m | Added +324.2k |
| DIMENSIONAL FUND ADVISORS LP 0.04% of their portfolio | 927.0k $134.3m | Reduced -42.5k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.28% of their portfolio | 816.1k $118.2m | First filing |
| GOLDMAN SACHS GROUP INC 0.02% of their portfolio | 658.4k $95.3m | Reduced -4.3k |
| CITADEL ADVISORS LLC 0.08% of their portfolio | 578.0k $83.7m | Added +15.8k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 529.1k $76.5m | Added +21.7k |
| FIRST TRUST ADVISORS LP 0.07% of their portfolio | 444.0k $64.3m | Reduced -46.8k |
| NORGES BANK 0.01% of their portfolio | 395.3k $57.3m | Added +3.7k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 338.6k $49.0m | Reduced -2.0k |
| MORGAN STANLEY 0.00% of their portfolio | 324.2k $47.0m | Reduced -629.8k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 274.0k $39.7m | Added +27.5k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 238.1k $34.5m | Added +5.2k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% of their portfolio | 235.7k $34.1m | Added +29.8k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 230.9k $33.4m | Reduced -32.0k |
| Merewether Investment Management, LP 1.71% of their portfolio | 223.4k $32.3m | Added +33.1k |
| JANE STREET GROUP, LLC 0.03% of their portfolio | 218.8k $31.7m | Added +210.3k |
| ProShare Advisors LLC 0.08% of their portfolio | 209.1k $30.3m | Reduced -11.2k |
| Allspring Global Investments Holdings, LLC 0.05% of their portfolio | 202.8k $29.4m | Reduced -10.8k |
| Invesco Ltd. 0.01% of their portfolio | 199.2k $28.9m | Reduced -110.7k |
| 1832 Asset Management L.P. 0.05% of their portfolio | 187.7k $27.2m | New |
| SCOPUS ASSET MANAGEMENT, L.P. 0.85% of their portfolio | 186.8k $27.0m | Added +50.0k |
| ExodusPoint Capital Management, LP 0.27% of their portfolio | 172.4k $25.0m | Reduced -19.1k |
| Legal & General Group Plc 0.01% of their portfolio | 168.8k $24.4m | Reduced -26.0k |
| BARCLAYS PLC 0.01% of their portfolio | 165.4k $24.0m | Added +111.6k |
| ROBOTTI ROBERT 3.73% of their portfolio | 164.3k $23.8m | Reduced -3.4k |
| BANK OF MONTREAL /CAN/ 0.01% of their portfolio | 150.0k $23.8m | Added +145.7k |
| AQR CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 142.9k $20.7m | Reduced -854 |
| STOREBRAND ASSET MANAGEMENT AS 0.07% of their portfolio | 141.2k $20.5m | Reduced -789 |
| MILLENNIUM MANAGEMENT LLC 0.02% of their portfolio | 131.6k $19.1m | Added +35.3k |
| Erste Asset Management GmbH 0.23% of their portfolio | 117.8k $17.1m | Reduced -1.0k |
| Swiss National Bank 0.01% of their portfolio | 113.8k $16.5m | Reduced -1.3k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 112.4k $16.3m | Added +17.9k |
| JANUS HENDERSON GROUP PLC 0.01% of their portfolio | 109.4k $15.8m | Added +228 |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 107.2k $15.5m | Reduced -13.5k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 105.7k $15.3m | Reduced -4.1k |
| MOORE CAPITAL MANAGEMENT, LP 0.31% of their portfolio | 98.9k $14.3m | New |
| SCOUT INVESTMENTS, INC. 0.37% of their portfolio | 95.1k $13.8m | Reduced -2.5k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 90.1k $13.0m | Reduced -99.4k |
| HRT FINANCIAL LP 0.07% of their portfolio | 82.4k $11.9m | New |
| Man Group plc 0.03% of their portfolio | 79.5k $11.5m | Added +71.4k |
| Sumitomo Mitsui Trust Group, Inc. 0.01% of their portfolio | 79.1k $11.5m | Reduced -8.0k |
| GUGGENHEIM CAPITAL LLC 0.08% of their portfolio | 75.1k $10.9m | Reduced -22.0k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.04% of their portfolio | 74.5k $10.8m | New |
| Moran Wealth Management, LLC 0.35% of their portfolio | 74.0k $10.7m | Reduced -1.7k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 72.6k $10.5m | Added +1.4k |
| Point72 Asset Management, L.P. 0.03% of their portfolio | 71.1k $10.3m | New |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 70.4k $10.2m | Reduced -2.2k |
| California Public Employees Retirement System 0.01% of their portfolio | 68.1k $9.9m | Added +3.6k |
| WEDGE CAPITAL MANAGEMENT L L P/NC 0.17% of their portfolio | 66.8k $9.7m | Reduced -4.5k |
| LAZARD ASSET MANAGEMENT LLC 0.01% of their portfolio | 66.8k $9.7m | Reduced -1.1k |
| SPROTT INC. 0.70% of their portfolio | 65.0k $9.4m | Reduced -5.0k |
| Squarepoint Ops LLC 0.03% of their portfolio | 62.9k $9.1m | Reduced -11.1k |
| Alyeska Investment Group, L.P. 0.05% of their portfolio | 62.1k $9.0m | Reduced -44.6k |
| Cerity Partners LLC 0.02% of their portfolio | 62.1k $9.0m | Reduced -82.0k |
| CONTRAVISORY INVESTMENT MANAGEMENT, INC. 1.95% of their portfolio | 60.9k $8.8m | Reduced -2.3k |
| Quantinno Capital Management LP 0.16% of their portfolio | 59.9k $8.7m | Added +1.3k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 59.1k $8.6m | New |
| Polar Asset Management Partners Inc. 0.20% of their portfolio | 52.9k $7.7m | Reduced -11.6k |
| Concentric Capital Strategies, LP 0.46% of their portfolio | 51.1k $7.4m | New |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 50.3k $7.3m | Reduced -606 |
| Appian Way Asset Management LP 1.82% of their portfolio | 48.8k $7.1m | Reduced -115.8k |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 48.7k $7.0m | New |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 48.5k $7.0m | Added +545 |
| Janney Montgomery Scott LLC 0.02% of their portfolio | 46.2k $6.7m | Reduced -10.2k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 45.0k $6.5m | Added +5.7k |
| WORLDQUANT MILLENNIUM ADVISORS LLC 0.06% of their portfolio | 44.6k $6.5m | Reduced -4.3k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 44.2k $6.4m | Added +20.9k |
| Trexquant Investment LP 0.10% of their portfolio | 43.5k $6.3m | New |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 42.6k $6.2m | Added +20 |
| Amundi 0.00% of their portfolio | 41.6k $6.0m | Added +4.2k |
| Knights of Columbus Asset Advisors LLC 0.39% of their portfolio | 41.3k $6.0m | Added +464 |
| Corebridge Financial, Inc. 0.03% of their portfolio | 40.7k $5.9m | First filing |
| Retirement Systems of Alabama 0.02% of their portfolio | 39.7k $5.7m | Reduced -555 |
| FEDERATED HERMES, INC. 0.01% of their portfolio | 37.4k $5.4m | Reduced -58.7k |
| CANADA LIFE ASSURANCE Co 0.01% of their portfolio | 36.5k $5.3m | Added +5.0k |
| Ensign Peak Advisors, Inc 0.01% of their portfolio | 36.2k $5.2m | Reduced -1.5k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 35.5k $5.1m | Added +20.3k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.12% of their portfolio | 35.3k $5.1m | Added +14.0k |
| Susquehanna Portfolio Strategies, LLC 0.20% of their portfolio | 33.0k $4.8m | Unchanged |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 30.7k $4.4m | Reduced -4.5k |
| LMCG INVESTMENTS, LLC 0.25% of their portfolio | 29.3k $4.2m | Added +500 |
| DNB Asset Management AS 0.02% of their portfolio | 29.0k $4.2m | Added +22.8k |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.01% of their portfolio | 28.9k $4.2m | Added +6.7k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 27.9k $4.0m | Added +23.7k |
| State of Alaska, Department of Revenue 0.04% of their portfolio | 27.4k $4.0m | Unchanged |
| STRS OHIO 0.02% of their portfolio | 27.0k $3.9m | Added +410 |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.01% of their portfolio | 26.2k $3.8m | Reduced -8.0k |
| KBC Group NV 0.01% of their portfolio | 26.2k $3.8m | Reduced -6.2k |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 26.1k $3.8m | Reduced -4.9k |
| Point72 Hong Kong Ltd 0.22% of their portfolio | 25.3k $3.7m | New |
| Cresset Asset Management, LLC 0.02% of their portfolio | 25.2k $3.6m | Added +1.4k |
| LPL Financial LLC 0.00% of their portfolio | 24.3k $3.5m | Added +2.3k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 23.7k $3.4m | Reduced -678 |