WLK
Westlake CorporationBasic Materials · $8.0B market cap
Verdict
Share price
$63.50
close of Oct 3, 2026
Fair value
$160.30
Sticker Price
Payback Price
$64.12
buy price
WLK is On Sale: at $63.50 it trades less than 1% below its buy price (Payback Price) of $64.12 and 60% below its fair value of $160.30. Business quality is solid: 3 of 5 key numbers clear the 10% bar.
How we valued it
Buffett Normalized. A profitable, growing business, so we project its earnings 10 years ahead and work out what that is worth today.
Business quality
3 of 5 clear the 10% bar. What are the Big Five?
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1 of the investors we track holds WLK. In Q2 2026, 1 trimmed. Who we track
Moves in Q2 2026
Trimmed: First Eagle Investment Management
Insider activity
Since Jun 15, 2026: no open-market purchases, 2 sales worth $3.1M and 22 other filings (stock awards, tax withholding and similar). Why purchases matter
Sales
Chao Albert
Executive Chairman · 2026-08-11
Sold
$2.5M
Chao Albert
Executive Chairman · 2026-08-11
Sold
$597K
Other filings
Darby Tommy
VP and CAO · 2026-08-31
Award
1,791 shares
Chao Catherine T.
director · 2026-08-14
Award
2,184 shares
Chao David Tsung-Hung
director · 2026-08-14
Award
2,184 shares
CREGG ROGER A
director · 2026-08-14
Award
2,184 shares
Graff Michael J
director · 2026-08-14
Award
2,184 shares
Show all 22 other filingsShow fewer
Lubel Kimberly S
director · 2026-08-14
Award
2,184 shares
MCCOLLUM MARK A
director · 2026-08-14
Award
2,184 shares
NORTHCUTT R BRUCE
director · 2026-08-14
Award
2,184 shares
Patel Bhavesh V.
director · 2026-08-14
Award
2,184 shares
Sabat Carolyn Chao
director · 2026-08-14
Award
2,184 shares
Sheets Jeffrey Wayne
director · 2026-08-14
Award
2,184 shares
Chao Albert
Executive Chairman · 2026-08-11
Option exercise
$2.4M
Chao Catherine T.
director · 2026-08-08
Option exercise
2,168 shares
Chao David Tsung-Hung
director · 2026-08-08
Option exercise
2,168 shares
CREGG ROGER A
director · 2026-08-08
Option exercise
2,168 shares
Graff Michael J
director · 2026-08-08
Option exercise
2,168 shares
Lubel Kimberly S
director · 2026-08-08
Option exercise
2,168 shares
MCCOLLUM MARK A
director · 2026-08-08
Option exercise
2,168 shares
NORTHCUTT R BRUCE
director · 2026-08-08
Option exercise
2,168 shares
Sabat Carolyn Chao
director · 2026-08-08
Option exercise
2,168 shares
Sheets Jeffrey Wayne
director · 2026-08-08
Option exercise
2,168 shares
Baksht Jonathan
SVP and CFO · 2026-06-15
Award
20,580 shares
About Westlake Corporation
Westlake Corporation operates as a global producer and supplier of petrochemicals, polymers, and a diverse range of building materials. Its business activities are structured into two main divisions: Performance and Essential Materials, and Housing and Infrastructure Products. The Performance and Essential Materials segment focuses on the manufacture and distribution of various chemical components, including…
Chemicals - Specialty
Fair value and Payback Price are estimates from the company's reported financials, not investment advice. Prices as of the close of Oct 3, 2026. How the Payback Price works