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Westlake Chemical Partners LP

WLKP
62
Chemicals · Basic Materials
Price
$21.56
+0.03 (+0.14%)
Market Cap
$759.9M
Winston Score
62
Winston is curious
A decent business — some strong pillars, some weaker.
Data as of Aug 23, 2026 · filings through Jun 30, 2026
How the score breaks down
Quality
Strong
Growth
Mixed
Cash Flow
Exceptional
Stability
Mixed
Valuation
Strong
Dividends
Good

Winston Score History

The full picture

Westlake Chemical Partners LP is a limited partnership that makes ethylene, a basic chemical building block used to produce plastics, packaging, and other everyday materials. It operates chemical plants in the United States and sells nearly all of its ethylene to its parent company, Westlake Chemical Corporation, under long-term supply agreements. This structure makes it one of the simpler, more predictable businesses in the chemicals industry.

The partnership earns money by producing and selling ethylene at prices set by those long-term contracts, which helps keep revenue stable even when chemical markets get volatile. It operates primarily in Louisiana and Texas, where it runs a small number of large facilities. The biggest strength here is the guaranteed customer relationship with its parent, which reduces sales risk — but that same dependence on one buyer means the partnership's future is closely tied to Westlake Chemical's own health and demand for its products.

Growth Profile

When traditional metrics don't capture the full picture, these are the signals growth stock investors use instead.

Revenue Growth

-0.0% YoY

YoY Growth Rate

Revenue declining

EPS Growth

-197.6% YoY

YoY Growth Rate

Earnings declining

R&D Spend

$0/ year

0.0% of revenue

Below sector average (3%)

Research and development spending

Insider Activity

44.3%ownership

Declining

Insider ownership declining — could be dilution or selling

Cash Position

Cash flow positive

$49M cash & investments

Quarterly Free Cash Flow

↑ Burn rate improving

Company generates more cash than it spends — no dilution risk from fundraising

Revenue declining

Westlake Chemical Partners LP's revenue is actually shrinking. In a growth stock, that removes the core investment thesis. The low Winston Score here may be warranted — unless there's a turnaround story.

The Winston Score above measures business quality today. Growth stocks often score lower because they invest in the future rather than maximising current profits. These metrics show what matters most for evaluating that future.

Share count broadly stable

+0.1% over 4y

The share count has stayed roughly flat over this period — little dilution or buyback activity.

Diluted shares outstanding: 35.2M (2021) → 35.2M (2025)

Score breakdown

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Quality

Profit per sale
Gross Margin
31.9%
Modest — 31.9% gross margin
Profit after running costs
Operating Margin
29.4%
Excellent — 29.4% operating margin
Return on the money invested
ROCE
46.2%
Exceptional — 46.2% return on capital

ROIC above 25%. Every dollar invested in the business earns more than 25 cents back per year.

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Growth

Sales growth
Sales YoY
+12.1%
Fast-growing sales (+12.1% YoY)
Profit growth
EPS YoY
-44.3%
Earnings shrinking (-44.3% YoY)

Earnings per share down more than 10%. Either a bad year, or a real decline.

How steady the profit is
EPS Consistency
3/8 quarters
Earnings rarely grow — volatile business

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Cash Flow

Profit that turns into cash
Cash Conversion
370%
Turns 370% of profit into real cash
Spare cash per sale
FCF Margin
34.1%
Converts sales into free cash efficiently (34.1%)

Free cash flow margin above 20%. Out of every $100 in sales, more than $20 is real cash they keep.

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Stability

What it owes vs what it owns
Debt / Equity
N/A
Data not available
Covers its interest
Interest Cover
14.73x
Comfortably covers interest (14.7x)

Interest coverage above 8. Profits cover interest many times over.

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Valuation

Price vs profit
P/E Ratio (TTM)
13.2x
Attractive valuation — P/E 13.2

P/E in the normal range. Price is roughly $15 for every $1 of yearly profit.

Cheaper or dearer next year
P/E vs Forward
+1.8
GROWING
Earnings expected to grow — slightly cheaper on forward P/E

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Dividends

Dividend
Dividend Yield
8.68%
Healthy income — 8.68% yield

Yield above 6% — often a flag the market is pricing in a cut.

Dividend record
Dividend Growth
+0.0%
Dividend flat

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