What is WLK's market cap?

$8.87B, based on the Nov 4 close of $69.38.

Does Westlake pay a dividend?

Yes. The latest regular dividend was $0.533 per share (ex-date Aug 25), an annualised yield of 3.07%.

How much of WLK is sold short?

4.3M shares, 12.9% of float, as of Oct 15, 2026.

What sector is WLK in?

Materials, in the Industrial Chemicals industry.

NYSE · WLKMaterialsIndustrial Chemicals

Westlake Corporation (WLK)

$69.38+1.33%

Close Nov 4, 2026 · split-adjusted

Nov 4, 2026$69.38▲ 1.61% in range

Nov 3, 2025Low $56.38 · High $123.39Nov 4, 2026

What changed · written from our data

As of Nov 4, 2026

Westlake closed at $69.38 on Nov 4, up 1.33%, 43.8% below its 52-week closing high. Volume of 624.3K shares was 0.66× its 20-day average (below normal).

Split-adjusted performance: +9.4% over one month, -30.6% over six months, +1.6% over one year.

In the quarter ended Jun 30, 2026, revenue was $3.27B, up 10.8% from a year earlier, with a net margin of 7.9%.

Short interest was 4.3M shares at the Oct 15 settlement, down 12.5% from the prior report (12.9% of float, 3.9 days to cover).

Market cap$8.87B127.8M shares

Revenue · quarter$3.27B+10.8% YoY

Diluted EPS$2.01—

P/E · TTM—P/S 0.8×

Net margin7.9%Gross 19.9%

Dividend yield3.07%$0.533 last paid

52-week range56.38 – 123.39−43.8% from high

Volume624.3K0.66× 20-day avg

Volatility · 60d32.0%Annualised

Short % of float12.9%3.9 days to cover

Net cash-$3.21BCash $1.85B

Next earnings—Not scheduled

Split-adjusted performance

1W +5.4%1M +9.4%3M −10.4%6M −30.6%YTD −6.2%1Y +1.6%3Y −39.7%5Y −27.6%

Earnings reactions

History →

No reported quarters with price history yet.

Rank within Industrial Chemicals

Percentile among 29 companies (100 = best)

6-month momentum37

Revenue growth67

Net margin58

Value (low P/E)—

Size86

Industry medians: 6-month return −17.9%, revenue growth +8.0%, net margin 4.8%, P/E 15.1×.

Short interest

Details →

Shares short4.3M−12.5% vs prior

Days to cover3.9Settled Oct 15

% of float12.9%

Short vol. 10d53.0%of daily volume

Closest peers by size in Industrial Chemicals

Company	Price	Today	6M	Rev. growth	Net margin	P/E	Mkt cap
WLKWestlake	$69.38	+1.33%	−30.6%	+10.8%	7.9%	—	$8.87B
NEUNewMarket	$717.16	−4.34%	+4.1%	+3.8%	17.3%	14.5	$6.60B	Compare
SXTSensient Technology	$123.71	+5.85%	+3.9%	+10.6%	10.6%	31.1	$5.27B	Compare
LYBLyondellBasell Industries N.V	$62.80	−4.98%	−14.5%	+10.0%	8.9%	15.7	$20.30B	Compare
IFFInternational Flavors & Fragrances	$88.15	−4.37%	+6.3%	+1.8%	2.6%	77.6	$22.49B	Compare
MTXMinerals Technologies	$65.25	+2.85%	−17.7%	+4.2%	7.7%	—	$2.03B	Compare
STDNStandard Nuclear	$11.95	−3.71%	—	—	—	—	$1.87B	Compare
REXREX American Resources	$39.38	+0.10%	−18.0%	+17.9%	18.7%	10.8	$1.31B	Compare
APDAir Products & Chemicals	$318.04	+1.62%	+5.9%	+4.6%	−45.6%	—	$70.82B	Compare

News about Westlake

All news →

Westlake Partners (WLKP) Q3 2026 Earnings Call TranscriptThe Motley Fool · 3h agoNeutral Westlake (WLK) Q3 Earnings and Revenues Lag EstimatesZacks Investment Research · 12h ago▼ Negative Westlake Completes PVCO Pipe Manufacturing Expansion in TexasZacks Investment Research · 5d ago▲ Positive Westlake Pipe & Fittings Completes PVCO Pipe Manufacturing ExpansionGlobeNewswire Inc. · 6d ago▲ Positive Westlake (WLK) Reports Next Week: Wall Street Expects Earnings GrowthZacks Investment Research · Oct 28, 2026▼ Negative

Quick answers

What does Westlake do?: Westlake is a forward-integrated commodity chemicals firm based in Houston. It began as a single low-density polyethylene plant and expanded its capabilities to include ethylene, vinyl chloride monomers, and polyvinyl chloride over the next two decades.
What is WLK's market cap?: $8.87B, based on the Nov 4 close of $69.38.
Does Westlake pay a dividend?: Yes. The latest regular dividend was $0.533 per share (ex-date Aug 25), an annualised yield of 3.07%.
How much of WLK is sold short?: 4.3M shares, 12.9% of float, as of Oct 15, 2026.
What sector is WLK in?: Materials, in the Industrial Chemicals industry.

About Westlake

Westlake is a forward-integrated commodity chemicals firm based in Houston. It began as a single low-density polyethylene plant and expanded its capabilities to include ethylene, vinyl chloride monomers, and polyvinyl chloride over the next two decades. The acquisition of Axiall in 2016 made it a North American leader in chlor-alkali and PVC. Today, Westlake has two defined segments: performance and essential materials, and housing and infrastructure products. The HIP segment began operating in 2022 following a series of acquisitions in the building products space. The firm aims to maximize the value of its chemical production by integrating with the HIP segment, realizing the higher margins of finished commercial goods.

HQ: Houston, TX14,600 employeesListed Aug 11, 2004westlake.com

Sources: Massive / Polygon daily aggregates (split-adjusted) · SEC filings via Massive · FINRA settlements via Massive · Financial Modeling Prep. Figures are dated where shown; research is informational, not investment advice. Methodology