Vault-13

WESTLAKE CORPORATION WLK

COM · Common Stock · CUSIP 960413102 · ISIN US9604131022

American petrochemical company

340 institutional holders -2 vs Q1 2023
36,925,88036.9m shares reported held*
28.9% of all shares outstanding*
$4.4bnreported value*
40 new 103 added 129 reduced 47 sold out net sold ≈ $637.9m (-5.7m shares)

* 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 ($6.7m this quarter). Holder counts are more reliable. Shares outstanding: 127.7m as of 2023-07-27, 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 ≈ $119.47. Options: 11 managers hold calls ($18.6m notional), 9 hold puts ($7.2m).

Trends to Q2 2023

Institutional holders

Managers reporting a position, each quarter

0200400Q3 22: 321Q4 22: 343Q1 23: 342Q2 23: 340340Q3 22Q4 22Q1 23Q2 23
Numbers
QuarterHolders
Q3 2022321
Q4 2022343
Q1 2023342
Q2 2023340

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
2000200Q4 22: 167 bought or addedQ4 22: 159 cut or sold outQ4 22Q1 23: 156 bought or addedQ1 23: 165 cut or sold outQ1 23Q2 23: 143 bought or addedQ2 23: 176 cut or sold outQ2 23
Numbers
QuarterBought or addedCut or sold out
Q4 2022167159
Q1 2023156165
Q2 2023143176

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$10m$20m$30mQ3 22 calls: $21.2mQ3 22 puts: $18.0mQ3 22P/C 0.85Q4 22 calls: $15.7mQ4 22 puts: $15.5mQ4 22P/C 0.99Q1 23 calls: $9.4mQ1 23 puts: $11.5mQ1 23P/C 1.22Q2 23 calls: $18.6mQ2 23 puts: $7.2mQ2 23P/C 0.38
Numbers
QuarterCallsPutsP/C
Q3 2022$21.2m$18.0m0.85
Q4 2022$15.7m$15.5m0.99
Q1 2023$9.4m$11.5m1.22
Q2 2023$18.6m$7.2m0.38

Biggest buyers

Orbis Allan Gray Ltd Added +853,129+853.1k
BlackRock Inc. Added +236,332+236.3k
KGH Ltd Added +125,000+125.0k
Yaupon Capital Management LP New +120,201+120.2k
ExodusPoint Capital Management, LP Added +95,804+95.8k
VICTORY CAPITAL MANAGEMENT INC Added +84,846+84.8k
TUDOR INVESTMENT CORP ET AL Added +58,744+58.7k
Polar Asset Management Partners Inc. New +56,500+56.5k
UBS Group AG Added +52,179+52.2k
Mirae Asset Global Investments Co., Ltd. Added +50,434+50.4k

Biggest sellers

FMR LLC Reduced -3,914,459-3.9m
Balyasny Asset Management L.P. Reduced -606,391-606.4k
ENVESTNET ASSET MANAGEMENT INC Reduced -508,856-508.9k
FIRST TRUST ADVISORS LP Reduced -505,031-505.0k
Soroban Capital Partners LP Reduced -454,024-454.0k
CITADEL ADVISORS LLC Reduced -393,027-393.0k
Appian Way Asset Management LP Sold out -253,283-253.3k
DIMENSIONAL FUND ADVISORS LP Reduced -218,579-218.6k
AQR CAPITAL MANAGEMENT LLC Reduced -176,709-176.7k
Caisse de depot et placement du Quebec Reduced -156,382-156.4k

Biggest calls

Walleye Trading LLC Added $7.9m66.4k shares
CITADEL ADVISORS LLC Added $6.1m50.9k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $2.7m22.7k shares
SIMPLEX TRADING, LLC Added $740.0k6.2k shares
JANE STREET GROUP, LLC Reduced $370.4k3.1k shares
CSS LLC/IL New $358.4k3.0k shares
WOLVERINE TRADING, LLC Reduced $237.7k2.0k shares
GROUP ONE TRADING LLC Added $119.5k1.0k shares
PEAK6 Investments LLC New $59.7k500 shares
Walleye Capital LLC Reduced $35.8k300 shares

Biggest puts

CITADEL ADVISORS LLC Added $3.6m29.9k shares
JANE STREET GROUP, LLC Reduced $955.8k8.0k shares
Walleye Trading LLC Reduced $800.4k6.7k shares
SIMPLEX TRADING, LLC Added $645.0k5.4k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $621.2k5.2k shares
Walleye Capital LLC Reduced $310.6k2.6k shares
WOLVERINE TRADING, LLC Reduced $202.1k1.7k shares
GROUP ONE TRADING LLC Reduced $59.7k500 shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 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 2023

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)

BuyingSelling
404Q3 21: 0 buyingQ3 21: 0 sellingQ4 21: 0 buyingQ4 21: 2 sellingQ4 21Q1 22: 0 buyingQ1 22: 4 sellingQ2 22: 0 buyingQ2 22: 4 sellingQ2 22Q3 22: 0 buyingQ3 22: 2 sellingQ4 22: 0 buyingQ4 22: 0 sellingQ4 22Q1 23: 0 buyingQ1 23: 0 sellingQ2 23: 0 buyingQ2 23: 0 sellingQ2 23
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q3 20210—0——
Q4 20210—2$6.6m—
Q1 20220—4$9.1m—
Q2 20220—4$9.7m—
Q3 20220—2$157.0k—
Q4 20220—0——
Q1 20230—0——
Q2 20230—0——

None reported in Q2 2023.

Holders, Q2 2023

#ManagerLocationShares Value% of their portfolioChangeShares change
1 FMR LLC 0.05% of their portfolio BOSTON, MA 4,534,8234.5m $541.8m $541.8m 0.05% Reduced -3.9m -3,914,459
2 BlackRock Inc. 0.01% of their portfolio New York, NY 3,803,2503.8m $454.4m $454.4m 0.01% Added +236.3k +236,332
3 VANGUARD GROUP INC 0.01% of their portfolio Valley Forge, PA 3,449,5213.4m $412.1m $412.1m 0.01% Reduced -12.2k -12,231
4 VICTORY CAPITAL MANAGEMENT INC 0.45% of their portfolio San Antonio, TX 3,405,5753.4m $406.9m $406.9m 0.45% Added +84.8k +84,846
5 Orbis Allan Gray Ltd 2.49% of their portfolio HamiltoN, D0 2,915,0292.9m $348.3m $348.3m 2.49% Added +853.1k +853,129
6 DIMENSIONAL FUND ADVISORS LP 0.05% of their portfolio AUSTIN, TX 1,251,8711.3m $149.6m $149.6m 0.05% Reduced -218.6k -218,579
7 STATE STREET CORP 0.01% of their portfolio BOSTON, MA 1,164,2841.2m $139.1m $139.1m 0.01% Added +20.2k +20,212
8 Pacer Advisors, Inc. 0.56% of their portfolio Malvern, PA 1,161,1411.2m $138.7m $138.7m 0.56% Reduced -26.3k -26,253
9 Soroban Capital Partners LP 1.45% of their portfolio New York, NY 898,837898.8k $107.4m $107.4m 1.45% Reduced -454.0k -454,024
10 CITADEL ADVISORS LLC 0.11% of their portfolio MIAMI, FL 833,349833.3k $99.6m $99.6m 0.11% Reduced -393.0k -393,027
11 GOLDMAN SACHS GROUP INC 0.02% of their portfolio NEW YORK, NY 776,556776.6k $92.8m $92.8m 0.02% Added +39.1k +39,115
12 Mirae Asset Global Investments Co., Ltd. 0.16% of their portfolio SEOUL, M5 619,009619.0k $74.0m $74.0m 0.16% Added +50.4k +50,434
13 Nuveen Asset Management, LLC 0.02% of their portfolio CHICAGO, IL 521,129521.1k $62.3m $62.3m 0.02% Reduced -29.5k -29,530
14 FIRST TRUST ADVISORS LP 0.07% of their portfolio Wheaton, IL 520,211520.2k $62.1m $62.1m 0.07% Reduced -505.0k -505,031
15 GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio BOSTON, MA 486,009486.0k $58.0m $58.0m 0.01% Added +15.5k +15,543
16 FEDERATED HERMES, INC. 0.14% of their portfolio PITTSBURGH, PA 477,144477.1k $57.0m $57.0m 0.14% Reduced -179 -179
17 Bank of New York Mellon Corp 0.01% of their portfolio NEW YORK, NY 403,091403.1k $48.2m $48.2m 0.01% Reduced -13.3k -13,301
18 NORGES BANK 0.01% of their portfolio OSLO, Q8 365,931365.9k $43.7m $43.7m 0.01% Added +33.6k +33,649
19 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio SAN FRANCISCO, CA 353,055353.1k $42.2m $42.2m 0.01% Added +8.3k +8,255
20 Allspring Global Investments Holdings, LLC 0.07% of their portfolio CHARLOTTE, NC 342,923342.9k $41.0m $41.0m 0.07% Reduced -760 -760
21 NORTHERN TRUST CORP 0.01% of their portfolio CHICAGO, IL 316,487316.5k $37.8m $37.8m 0.01% Added +13.2k +13,173
22 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 313,786313.8k $37.5m $37.5m 0.00% Reduced -18.1k -18,112
23 AQR CAPITAL MANAGEMENT LLC 0.07% of their portfolio Greenwich, CT 292,773292.8k $34.7m $34.7m 0.07% Reduced -176.7k -176,709
24 ProShare Advisors LLC 0.10% of their portfolio BETHESDA, MD 290,185290.2k $34.7m $34.7m 0.10% Reduced -22.5k -22,454
25 ROBOTTI ROBERT 4.41% of their portfolio NEW YORK, NY 228,359228.4k $27.3m $27.3m 4.41% Reduced -857 -857
26 Grantham, Mayo, Van Otterloo & Co. LLC 0.12% of their portfolio Boston, MA 225,522225.5k $26.9m $26.9m 0.12% Reduced -11.2k -11,178
27 Legal & General Group Plc 0.01% of their portfolio London, X0 216,550216.6k $25.9m $25.9m 0.01% Reduced -10.9k -10,855
28 Invesco Ltd. 0.01% of their portfolio ATLANTA, GA 194,996195.0k $23.3m $23.3m 0.01% Reduced -56.3k -56,312
29 KGH Ltd 1.52% of their portfolio NASSAU, C5 180,000180.0k $21.5m $21.5m 1.52% Added +125.0k +125,000
30 Erste Asset Management GmbH 0.34% of their portfolio VIENNA, C4 163,370163.4k $19.5m $19.5m 0.34% Reduced -181 -181
31 STOREBRAND ASSET MANAGEMENT AS 0.08% of their portfolio LYSAKER, Q8 153,447153.4k $18.3m $18.3m 0.08% Reduced -2.2k -2,240
32 GUGGENHEIM CAPITAL LLC 0.14% of their portfolio CHICAGO, IL 146,996147.0k $17.6m $17.6m 0.14% Added +7.4k +7,434
33 JANUS HENDERSON GROUP PLC 0.01% of their portfolio LONDON, X0 146,574146.6k $17.5m $17.5m 0.01% Reduced -49.1k -49,055
34 Swiss National Bank 0.01% of their portfolio ZURICH, V8 137,800137.8k $16.5m $16.5m 0.01% Reduced -13.9k -13,900
35 AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio KANSAS CITY, MO 134,170134.2k $16.0m $16.0m 0.01% Reduced -27.9k -27,867
36 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 130,603130.6k $15.6m $15.6m 0.00% Reduced -1.2k -1,156
37 SCOUT INVESTMENTS, INC. 0.35% of their portfolio KANSAS CITY, MO 130,147130.1k $17.4m $17.4m 0.35% Reduced -14.6k -14,555
38 PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio DES MOINES, IA 129,251129.3k $15.4m $15.4m 0.01% Reduced -6.9k -6,885
39 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% of their portfolio NEW YORK, NY 128,242128.2k $14.9m $14.9m 0.01% Unchanged
40 LUMINUS MANAGEMENT LLC 4.44% of their portfolio HOUSTON, TX 121,649121.6k $14.5m $14.5m 4.44% Added +3.0k +3,049
41 Yaupon Capital Management LP 1.94% of their portfolio NEW YORK, NY 120,201120.2k $14.4m $14.4m 1.94% New
42 Caisse de depot et placement du Quebec 0.03% of their portfolio Montreal, A8 104,530104.5k $12.5m $12.5m 0.03% Reduced -156.4k -156,382
43 RHUMBLINE ADVISERS 0.01% of their portfolio BOSTON, MA 102,838102.8k $12.3m $12.3m 0.01% Added +970 +970
44 VIRGINIA RETIREMENT SYSTEMS ET Al 0.12% of their portfolio RICHMOND, VA 102,561102.6k $12.3m $12.3m 0.12% Added +200 +200
45 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 100,417100.4k $12.0m $12.0m 0.00% Reduced -42.6k -42,571
46 SPROTT INC. 1.09% of their portfolio TORONTO, A6 100,000100.0k $11.9m $11.9m 1.09% Reduced -5.0k -5,000
47 ExodusPoint Capital Management, LP 0.14% of their portfolio NEW YORK, NY 98,35098.3k $11.8m $11.8m 0.14% Added +95.8k +95,804
48 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 97,48997.5k $11.6m $11.6m 0.00% Reduced -15.1k -15,060
49 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 96,58896.6k $11.5m $11.5m 0.00% Reduced -9.0k -9,028
50 TUDOR INVESTMENT CORP ET AL 0.19% of their portfolio STAMFORD, CT 95,98896.0k $11.5m $11.5m 0.19% Added +58.7k +58,744
51 Sumitomo Mitsui Trust Group, Inc. 0.01% of their portfolio CHIYODA-KU, TOKYO, M0 91,20491.2k $10.9m $10.9m 0.01% Reduced -22.3k -22,300
52 SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.39% of their portfolio BALA CYNWYD, PA 89,27289.3k $10.7m $10.7m 0.39% Unchanged
53 LAZARD ASSET MANAGEMENT LLC 0.01% of their portfolio NEW YORK, NY 86,79686.8k $10.4m $10.4m 0.01% Reduced -38.0k -38,010
54 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 78,51178.5k $9.4m $9.4m 0.00% Reduced -952 -952
55 Moran Wealth Management, LLC 0.35% of their portfolio NAPLES, FL 78,05478.1k $9.3m $9.3m 0.35% Added +3.1k +3,150
56 Alyeska Investment Group, L.P. 0.07% of their portfolio CHICAGO, IL 76,06776.1k $9.1m $9.1m 0.07% Added +27.0k +26,990
57 WEDGE CAPITAL MANAGEMENT L L P/NC 0.14% of their portfolio CHARLOTTE, NC 72,62272.6k $8.7m $8.7m 0.14% Added +19.3k +19,307
58 Vident Investment Advisory, LLC 0.29% of their portfolio Alpharetta, GA 71,64671.6k $8.6m $8.6m 0.29% Reduced -3.7k -3,696
59 AVIVA PLC 0.03% of their portfolio LONDON, X0 71,57871.6k $8.6m $8.6m 0.03% Added +46.8k +46,845
60 WINMILL & CO. INC 2.99% of their portfolio WALPOLE, NH 70,00070.0k $8.4m $8.4m 2.99% Unchanged
61 CONTRAVISORY INVESTMENT MANAGEMENT, INC. 2.10% of their portfolio Norwell, MA 66,41066.4k $7.9m $7.9m 2.10% Added +1.7k +1,694
62 UBS Group AG 0.00% of their portfolio ZURICH, V8 64,72564.7k $7.7m $7.7m 0.00% Added +52.2k +52,179
63 CREDIT SUISSE AG/ 0.01% of their portfolio ZURICH, V8 62,87362.9k $7.5m $7.5m 0.01% Added +6.7k +6,679
64 Cerity Partners LLC 0.03% of their portfolio NEW YORK, NY 61,44061.4k $7.3m $7.3m 0.03% Reduced -452 -452
65 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio WEST SACRAMENTO, CA 56,94856.9k $6.8m $6.8m 0.01% Reduced -1.4k -1,355
66 Polar Asset Management Partners Inc. 0.13% of their portfolio TORONTO, A6 56,50056.5k $6.8m $6.8m 0.13% New
67 Gotham Asset Management, LLC 0.14% of their portfolio NEW YORK, NY 55,11155.1k $6.6m $6.6m 0.14% Added +34.2k +34,182
68 AMERICAN INTERNATIONAL GROUP, INC. 0.04% of their portfolio New York, NY 51,96252.0k $6.2m $6.2m 0.04% Reduced -1.2k -1,156
69 STRS OHIO 0.03% of their portfolio COLUMBUS, OH 50,69350.7k $6.1m $6.1m 0.03% Reduced -90.6k -90,607
70 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 50,32550.3k $6.0m $6.0m 0.00% Added +17.0k +17,035
71 CITIGROUP INC 0.01% of their portfolio NEW YORK, NY 45,90345.9k $5.5m $5.5m 0.01% Added +24.2k +24,217
72 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 45,23045.2k $5.4m $5.4m 0.00% Reduced -508.9k -508,856
73 Retirement Systems of Alabama 0.02% of their portfolio MONTGOMERY, AL 44,41344.4k $5.3m $5.3m 0.02% Reduced -581 -581
74 Squarepoint Ops LLC 0.03% of their portfolio NEW YORK, NY 43,04843.0k $5.1m $5.1m 0.03% Added +20.7k +20,719
75 Amundi 0.00% of their portfolio Paris, I0 42,45942.5k $5.1m $5.1m 0.00% Added +11.5k +11,483
76 PINEBRIDGE INVESTMENTS, L.P. 0.05% of their portfolio NEW YORK, NY 37,83337.8k $4.5m $4.5m 0.05% Added +15.1k +15,137
77 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 36,61636.6k $4.4m $4.4m 0.00% Added +9.3k +9,349
78 WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio Boston, MA 36,61136.6k $4.4m $4.4m 0.00% Added +7.9k +7,855
79 FORT PITT CAPITAL GROUP, LLC 0.16% of their portfolio Pittsburgh, PA 36,39236.4k $4.3m $4.3m 0.16% Reduced -11.1k -11,147
80 Smith, Graham & Co., Investment Advisors, LP 0.52% of their portfolio Houston, TX 35,67535.7k $4.3m $4.3m 0.52% Reduced -350 -350
81 OCCUDO QUANTITATIVE STRATEGIES LP 0.44% of their portfolio FORT LAUDERDALE, FL 35,33735.3k $4.2m $4.2m 0.44% Added +29.6k +29,576
82 STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio MADISON, WI 34,75134.8k $4.2m $4.2m 0.01% Reduced -4.2k -4,231
83 Quantinno Capital Management LP 0.23% of their portfolio NEW YORK, NY 33,45633.5k $4.0m $4.0m 0.23% Added +1.1k +1,135
84 Ensign Peak Advisors, Inc 0.01% of their portfolio SALT LAKE CITY, UT 33,04033.0k $3.9m $3.9m 0.01% Reduced -32.5k -32,510
85 State of Tennessee, Department of Treasury 0.02% of their portfolio NASHVILLE, TN 32,58432.6k $3.9m $3.9m 0.02% Reduced -2.4k -2,398
86 STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.01% of their portfolio TALLAHASSEE, FL 32,55432.6k $3.9m $3.9m 0.01% Reduced -1.6k -1,599
87 California Public Employees Retirement System 0.00% of their portfolio Sacramento, CA 32,54432.5k $3.9m $3.9m 0.00% Added +12.1k +12,080
88 RAYMOND JAMES & ASSOCIATES 0.00% of their portfolio ST PETERSBURG, FL 31,67431.7k $3.8m $3.8m 0.00% Added +19.3k +19,270
89 HSBC HOLDINGS PLC 0.00% of their portfolio LONDON, X0 31,62131.6k $3.8m $3.8m 0.00% Added +19.2k +19,210
90 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 31,27131.3k $3.7m $3.7m 0.00% Reduced -2.2k -2,223
91 Faithward Advisors, LLC 0.94% of their portfolio LANCASTER, PA 30,69830.7k $4.1m $4.1m 0.94% Reduced -852 -852
92 BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio PARIS, I0 30,67030.7k $3.7m $3.7m 0.01% Reduced -11.3k -11,337
93 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 30,61430.6k $3.7m $3.7m 0.00% Added +1.4k +1,441
94 TEXAS PERMANENT SCHOOL FUND CORP 0.03% of their portfolio AUSTIN, TX 30,34430.3k $3.6m $3.6m 0.03% Reduced -538 -538
95 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 29,58729.6k $3.5m $3.5m 0.00% Added +1.5k +1,461
96 CLARK ESTATES INC/NY 0.58% of their portfolio NEW YORK, NY 28,60028.6k $3.4m $3.4m 0.58% Unchanged
97 State of Alaska, Department of Revenue 0.04% of their portfolio JUNEAU, AK 28,20828.2k $3.4m $3.4m 0.04% Reduced -471 -471
98 WORLDQUANT MILLENNIUM ADVISORS LLC 0.06% of their portfolio NEW YORK, NY 27,71227.7k $3.3m $3.3m 0.06% New
99 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 27,44927.4k $3.3m $3.3m 0.00% Added +2.2k +2,159
100 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 27,03627.0k $3.2m $3.2m 0.00% Reduced -965 -965