8-K - WESTLAKE CORP (0001262823) (Filer)
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8-K - WESTLAKE filed an 8-K with the SEC on Nov 4 (a notice of a material company event).
Directly affected
- WLK Westlake
Named in this report.
Indirectly affected
- XLB Materials Select Sector SPDR+1.1% 30d
Materials Select Sector SPDR holds the materials sector that Westlake belongs to, so it often moves with news about it.
- IFF International Flavors & Fragrances+9.3% 19d
International Flavors & Fragrances is a peer of Westlake in industrial organic chemicals; rivals often move on the same news.
- LYB LyondellBasell Industries N.V
LyondellBasell Industries N.V is a peer of Westlake in industrial organic chemicals; rivals often move on the same news.
- MEOH Methanex
Methanex is a peer of Westlake in industrial organic chemicals; rivals often move on the same news.
Price reaction, T-5 to T+3
| Ticker | T-5 | T-3 | T-1 | T0 | T+1 | T+2 | T+3 |
|---|---|---|---|---|---|---|---|
| WLK | -3.97% | -0.23% | base | after close | after close | after close | after close |
| XLB | -1.33% | +0.34% | base | after close | after close | after close | after close |
| IFF | -1.61% | +0.97% | base | after close | after close | after close | after close |
| LYB | +1.54% | +3.90% | base | after close | after close | after close | after close |
| MEOH | -8.95% | +2.42% | base | after close | after close | after close | after close |
Closing-price change versus T-1, the last close before the story. T0 to T+3 fill in after each market close. Prices: Alpaca IEX.
Filed: 2026-11-04 AccNo: 0001262823-26-000076 Size: 3 MB Item 2.02: Results of Operations and Financial Condition Item 7.01: Regulation FD Disclosure Item 9.01: Financial Statements and Exhibits
Source: sec-edgar
The price since 4 Nov 2026: Westlake (WLK) versus the S&P 500
| Company | When | Move | Status |
|---|---|---|---|
| International Flavors & Fragrances (IFF) | three days earlier | +0.97% | final price |
| International Flavors & Fragrances (IFF) | five days earlier | -1.61% | final price |
| LyondellBasell Industries N.V (LYB) | three days earlier | +3.90% | final price |
| LyondellBasell Industries N.V (LYB) | five days earlier | +1.54% | final price |
| Methanex (MEOH) | three days earlier | +2.42% | final price |
| Methanex (MEOH) | five days earlier | -8.95% | final price |
| Westlake (WLK) | three days earlier | -0.23% | final price |
| Westlake (WLK) | five days earlier | -3.97% | final price |
| Select Sector Spdr Tr (XLB) | three days earlier | +0.34% | final price |
| Select Sector Spdr Tr (XLB) | five days earlier | -1.33% | final price |
Who is named in “8-K - WESTLAKE CORP (0001262823) (Filer)”
Companies mentioned with this story
- WLK Westlake
In “8-K - WESTLAKE CORP (0001262823) (Filer),” Westlake (WLK) is linked, with no stored direction, high confidence. Reason on file: SEC 8-K filing -> direct issuer disclosure -> WLK
- XLB Select Sector Spdr Tr
In “8-K - WESTLAKE CORP (0001262823) (Filer),” Select Sector Spdr Tr (XLB) is linked, with no stored direction, medium confidence. Reason on file: Materials Select Sector SPDR holds the materials sector that Westlake belongs to, so it often moves with news about it
- IFF International Flavors & Fragrances
International Flavors & Fragrances (IFF) is linked, with no stored direction, medium confidence in the 4 Nov 2026 story “8-K - WESTLAKE CORP (0001262823) (Filer).” Reason on file: International Flavors & Fragrances is a peer of Westlake in industrial organic chemicals; rivals often move on the same news
- LYB LyondellBasell Industries N.V
For “8-K - WESTLAKE CORP (0001262823) (Filer),” LyondellBasell Industries N.V (LYB) is linked, with no stored direction, medium confidence. Reason on file: LyondellBasell Industries N.V is a peer of Westlake in industrial organic chemicals; rivals often move on the same news
- MEOH Methanex
For “8-K - WESTLAKE CORP (0001262823) (Filer),” Methanex (MEOH) is linked, with no stored direction, medium confidence. Reason on file: Methanex is a peer of Westlake in industrial organic chemicals; rivals often move on the same news
How “8-K - WESTLAKE CORP (0001262823) (Filer)” reaches Westlake (WLK)
The 4 Nov 2026 story “8-K - WESTLAKE CORP (0001262823) (Filer)” names Westlake (WLK) because of this story.
The link for Westlake (WLK) is this: SEC 8-K filing -> direct issuer disclosure -> WLK
Also listed, Select Sector Spdr Tr (XLB): Materials Select Sector SPDR holds the materials sector that Westlake belongs to, so it often moves with news about it
Dates in the story, and the Westlake (WLK) price range
IFF traded between 81.54 and 94.36 across 16 sessions. The latest close on file is 92.22. XLB traded between 47.81 and 51.51 across 17 sessions. The latest close on file is 50.93.
How solid “8-K - WESTLAKE CORP (0001262823) (Filer)” looks
40 out of 100
“8-K - WESTLAKE CORP (0001262823) (Filer)” scores 40 out of 100. The score uses 1 sources, and 5 linked companies.