WLK vs WLKP vs LYB Stock Comparison

Westlake, Westlake Chemical Partners and LyondellBasell Industries Prices as of Oct 27, 2026 Peers: Industry group
WLK Westlake Corp
$66.18 -2.3% 1M -17.0% 1Y
Market cap
$8.40B
P/E
–
Revenue (TTM)
$11.29B
Div. yield
0.03%
Commodity Chemicals Basic Materials
1 win

Head to Head

11 decided of 12

Westlake Chemical Partners leads on 7 of the 12 questions below (Westlake Chemical Partners 7, LyondellBasell Industries 3, Westlake 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionWLKWLKPLYBLeader
Larger companyMarket capitalisation $8.40B $744.75M $43.40B LYB
Cheaper on earningsLower P/E, profitable companies only -6.8x 12.9x -122.9x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS 38.9x 14.3x 7.2x LYB
Faster revenue growthRevenue growth, trailing twelve months -4.0% +12.1% -1.7% WLKP
More profitableNet margin, trailing twelve months -10.9% 4.7% -1.1% WLKP
Better return on capitalReturn on invested capital -8.0% 30.1% 4.1% WLKP
Less leveragedLower net debt / EBITDA -42.9x 0.7x 4.3x WLK
Higher dividend yieldTrailing dividend yield 0.03% 0.09% 0.03% WLKP
Better 1-year returnPrice return, last 12 months -17.0% +7.0% +37.4% LYB
Better 5-year returnAnnualised price return, 5 years -7.5%/yr -4.0%/yr -6.9%/yr WLKP
Less volatileAnnualised volatility, 1 year 43.4% 18.5% 42.7% WLKP
Higher overall scoreMean of the five percentile scores vs peers 42/100 86/100 40/100 WLKP

Percentile Scorecard

WLKWLKPLYB

Each axis is the mean percentile of its metrics against the company's industry group. 100 is the best in the group, 50 the middle.

Scores by Axis

AxisWLKWLKPLYB
Valuation 46 #51 of 94 99 #2 of 94 41 #56 of 94
Growth 1 #90 of 91 57 #40 of 91 24 #69 of 91
Profitability 24 #66 of 86 100 #1 of 86 55 #39 of 86
Financial Health 54 #44 of 95 85 #15 of 95 32 #65 of 95
Shareholder Returns 84 #12 of 70 87 #10 of 70 46 #38 of 70
Overall 42 86 40
  • WLK ranked among 99 companies in Chemicals
  • WLKP ranked among 99 companies in Chemicals
  • LYB ranked among 99 companies in Chemicals

Price Performance

Price return, split-adjusted, before dividends. Click a name to hide or show it.

Returns

PeriodWLKWLKPLYBSPY
1 month -2.3%-2.5%+16.0% -0.2%
3 months -8.3%-4.4%+15.8% +3.9%
6 months -40.0%-7.9%-5.7% +8.2%
Year to date -10.5%+10.6%+55.7% +12.9%
1 year -17.0%+7.0%+37.4% +12.3%
3 years -42.2%-1.3%-25.4% +87.4%
3 years, per year -16.7%-0.4%-9.3% +23.3%
5 years -32.2%-18.2%-30.0% +67.9%
5 years, per year -7.5%-4.0%-6.9% +10.9%
10 years +29.2%-0.4%-16.0% +261.1%
10 years, per year +2.6%0.0%-1.7% +13.7%

Risk

MeasureWLKWLKPLYBSPY
Volatility, 1Y 43.4%18.5%42.7% 12.7%
Downside volatility, 1Y 38.5%17.7%40.8% 12.7%
Beta vs S&P 500, 1Y 0.460.21-0.59 1.00
Return / volatility, 1Y -0.390.380.87 0.97
Max drawdown, 5Y -65.2%-38.8%-63.9% -25.4%
From 52-week high -46.4%-11.4%-18.1% -1.2%
52-week high $123.39$23.72$82.38 $779.14
52-week low $56.38$17.87$42.28 $631.97

Valuation History

Weekly multiples on trailing twelve-month fundamentals. Negative or extreme readings (a loss year, a collapsed denominator) are left out so the chart stays readable.

MultipleWLKWLKPLYB
P/E now vs peer median -6.9xmedian 22.0x 12.9xmedian 22.0x -123.4xmedian 22.0x
P/S now vs peer median 0.7xmedian 1.4x 0.6xmedian 1.4x 1.4xmedian 1.4x
EV/EBITDA now vs peer median -155.6xmedian 12.4x 2.2xmedian 12.4x 22.4xmedian 12.4x
P/FCF now vs peer median -31.9xmedian 15.1x 1.8xmedian 15.1x 27.6xmedian 15.1x
P/B now vs peer median 0.9xmedian 1.6x 1.0xmedian 1.6x 4.1xmedian 1.6x
PEG now vs peer median 0.16median 1.66 —median 1.66 4.19median 1.66

Financial History

Reported figures by fiscal period, placed on the calendar year (or quarter) each period ended in, so companies with different fiscal years line up.

Trailing twelve monthsWLKWLKPLYB
Revenue $11.29B $1.23B $31.19B
Gross profit $1.09B $384.80M $3.98B
Operating income -$1.25B $355.62M $963.00M
Net income -$1.21B $334.49M -$346.00M
Free cash flow -$265.00M $409.14M $1.58B
R&D – – $137.00M
EPS (diluted) $-9.61 – $-0.55
Cash & equivalents $1.64B $49.32M $2.63B
Total debt $5.07B $1.60B $12.91B
Shares (diluted) 128.50M – 646.00M
Enterprise value -$976.46M $568.93M $32.91B

All Metrics

58 metrics · best in bold

Bold marks the best reading: the lowest positive value for multiples, leverage and payout, the highest for everything else. The bar under each value is its percentile against that company's own peers. Hover a value for its rank and the peer median.

Valuation

12 metrics
MetricWLKWLKPLYB
P/E -6.9x 12.9x -123.4x
P/FCF -31.9x 1.8x 27.6x
P/Operating cash flow 13.4x 1.6x 14.7x
P/S 0.7x 0.6x 1.4x
P/B 0.9x 1.0x 4.1x
P/Tangible book 1.0x 1.0x 4.2x
EV/EBITDA -155.6x 2.2x 22.4x
EV/EBIT -9.4x 3.1x 55.9x
EV/Revenue 1.0x 0.9x 1.7x
EV/FCF -44.0x 2.7x 34.1x
EV/Operating cash flow 18.5x 2.3x 18.1x
PEG (3Y EPS CAGR) 0.16 – 4.19

Growth

14 metrics
MetricWLKWLKPLYB
Revenue growth (1Y) -4.0% 12.1% -1.7%
Revenue CAGR (3Y) -6.6% -3.0% -10.2%
Gross profit growth (1Y) -17.5% 4.8% 15.6%
Gross profit CAGR (3Y) -26.8% 0.2% -6.3%
Operating income growth (1Y) -1,286% 4.7% 44.4%
Operating income CAGR (3Y) -39.3% 0.0% -31.7%
Net income growth (1Y) -3,089% 4.7% -232.1%
Net income CAGR (3Y) -42.3% -0.2% -29.3%
EPS growth (1Y) -1,740% – -238.0%
EPS CAGR (3Y) -43.1% – -29.4%
Operating cash flow growth (1Y) -34.7% 48.6% 26.1%
Operating cash flow CAGR (3Y) -39.5% -1.1% -14.7%
Free cash flow growth (1Y) -390.7% 67.7% 240.8%
Free cash flow CAGR (3Y) -29.1% -2.6% -21.2%

Profitability

14 metrics
MetricWLKWLKPLYB
Gross margin 9.6% 31.2% 12.8%
EBITDA margin -0.7% 40.0% 7.7%
Operating margin -11.0% 28.8% 3.1%
Pretax margin -11.4% 27.1% -0.2%
Net margin -10.9% 4.7% -1.1%
FCF margin -2.3% 33.1% 5.1%
Operating cash flow margin 5.6% 37.7% 9.5%
Return on equity -13.0% 42.8% -3.3%
Return on assets -6.1% 27.3% -1.0%
Return on invested capital -8.0% 30.1% 4.1%
Return on capital employed -7.2% 30.1% 3.6%
Asset turnover 0.6x 1.0x 0.9x
Cash conversion (OCF / net income) -0.5x 1.4x -8.6x
Stock comp / revenue 0.4% – 0.3%

Financial Health

11 metrics
MetricWLKWLKPLYB
Debt / assets 26.1% 32.8% 37.4%
Debt / equity 0.6x 0.5x 1.2x
Net debt / EBITDA -42.9x 0.7x 4.3x
Debt / FCF -19.1x 1.0x 8.2x
Liabilities / assets 52.6% 36.8% 69.0%
Equity / assets 47.4% 63.2% 31.0%
Interest coverage -6.1x 16.4x 1.8x
Current ratio 2.5x 3.4x 1.6x
Quick ratio 1.7x 1.9x 0.9x
Cash ratio 0.8x 1.1x 0.4x
Altman Z-score 1.70 – 2.54

Shareholder Returns

7 metrics
MetricWLKWLKPLYB
Dividend yield 3.2% 9.0% 5.1%
Net buyback yield 0.7% – –
Shareholder yield 3.9% 9.0% 5.1%
Payout ratio (earnings) -22.5% 19.9% -385.5%
Payout ratio (FCF) -103.0% 16.2% 84.5%
Dividend growth (1Y) 1.1% 0.0% -23.9%
Dividend CAGR (3Y) 14.1% 0.0% -5.5%

Analyst Estimates

Solid lines are reported fiscal-year results; dashed lines are the consensus for the years ahead. Hover a year for the analysts' high and low, and how each result compared with its estimate.

ConsensusWLKWLKPLYB
Forward P/E 38.9xFY2026 14.3xFY2026 7.2xFY2026
EPS, next fiscal year $1.70FY2026 $1.47FY2026 $9.42FY2026
EPS growth, next FY – +6.5%FY2026 +454.1%FY2026
EPS growth, the year after +25.9% +20.4% -30.1%
Revenue, next fiscal year $12.04BFY2026 $1.31BFY2026 $32.43BFY2026
Revenue growth, next FY +7.8%FY2026 +11.8%FY2026 +7.6%FY2026
Revenue growth, the year after -3.9% +16.9% +0.8%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersWLKWLKPLYB
Held by institutions 31.0% 29.1% 37.4%
Institutions holding 362 56 878
Change in shares held, QoQ -9.9% -0.2% -1.9%
Institutions buying 199 26 469
Institutions selling 118 13 297
Buyers to sellers 1.69 2.00 1.58

Return Correlation

Daily returns, last 12 months

1.00 means two stocks move in lockstep, 0 that they move independently. Pairs below about 0.5 diversify each other.

WLKWLKPLYB
WLK 1.00 0.33 0.58
WLKP 0.33 1.00 0.19
LYB 0.58 0.19 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, WLK, WLKP and LYB?

LyondellBasell Industries (LYB) is the largest by market capitalisation: Westlake (WLK) $8.40B, Westlake Chemical Partners (WLKP) $744.75M, LyondellBasell Industries (LYB) $43.40B.

Which company is growing faster?

Westlake Chemical Partners (WLKP) grew revenue fastest over the trailing twelve months: Westlake (WLK) -4.0%, Westlake Chemical Partners (WLKP) +12.1%, LyondellBasell Industries (LYB) -1.7%.

Which company is more profitable?

Westlake Chemical Partners (WLKP) has the highest net margin (Westlake (WLK) -10.9%, Westlake Chemical Partners (WLKP) 4.7%, LyondellBasell Industries (LYB) -1.1%). On return on invested capital, Westlake Chemical Partners (WLKP) leads (Westlake (WLK) -8.0%, Westlake Chemical Partners (WLKP) 30.1%, LyondellBasell Industries (LYB) 4.1%).

Which stock has performed better?

Over the past year LyondellBasell Industries (LYB) returned the most: Westlake (WLK) -17.0%, Westlake Chemical Partners (WLKP) +7.0%, LyondellBasell Industries (LYB) +37.4%. Over five years, Westlake Chemical Partners (WLKP) compounded fastest (Westlake (WLK) -7.5%/yr, Westlake Chemical Partners (WLKP) -4.0%/yr, LyondellBasell Industries (LYB) -6.9%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Westlake Chemical Partners (WLKP) has the highest dividend yield: Westlake (WLK) 0.03%, Westlake Chemical Partners (WLKP) 0.09%, LyondellBasell Industries (LYB) 0.03%.

Which stock is riskier?

By one-year price volatility, Westlake Chemical Partners (WLKP) has been the steadiest (Westlake (WLK) 43.4%, Westlake Chemical Partners (WLKP) 18.5%, LyondellBasell Industries (LYB) 42.7%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, WLK, WLKP and LYB?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Westlake Chemical Partners (WLKP) leads on 7. Business Quant does not give investment advice; use the comparison as a starting point for your own research.

Data from SEC filings, exchange prices and consensus estimates, via Business Quant. Percentile scores compare each company with its own peer group, so two companies' scores are each relative to different peers unless you rank against the whole market. Price returns exclude dividends. Nothing on this page is investment advice.