Stock fact sheet · data as of
Westlake Corporation (WLK): fair value, margin of safety and Wheel Score
Basic Materials · Chemicals - Specialty · United States · Speculative / Distressed
Is WLK undervalued?
WLK closed at 62.21 on 16 Oct 2026 against a GLS average fair value of 61.73 - 0.8% above fair value, which our screens read as "fairly priced". 1 of 2 models are above the current price. There is no discount to lean on here, so the margin of safety is not the reason to look at the stock.
Only 2 of the nine models produced a value (DCF, DDM); the others need a dividend, positive free cash flow or positive book value the company does not have yet, so the average rests on a narrow base.
The nightly engine files WLK under Speculative / Distressed - negative earnings or a Piotroski score of 3 or less - which caps its Wheel Score at 45 and keeps it out of the Sunday Scan.
Nine valuation models for WLK
Each model turns the latest filed numbers into a value per share; the GLS fair value is the simple average of the ones that produce a positive number. The last two rows are shown for reference and never enter the average. The Quote page lets you switch any model off and add your own margin of safety.
| Model | Value | vs price | What it measures |
|---|---|---|---|
| DCF | 92.23 | +48% | Present value of the projected free cash flows, discounted at the cost of capital |
| Graham Number | - | - | The most a defensive investor pays for the earnings and book value per share; no value tonight |
| Graham Growth | - | - | Graham's growth formula: EPS × (8.5 + 2 × growth), adjusted for bond yields; no value tonight |
| Lynch | - | - | EPS × the earnings growth rate (PEG of 1), growth capped at 25%; no value tonight |
| GLS Growth | - | - | EPS compounded ten years at the blended growth rate, discounted back at 15% a year; no value tonight |
| 10 Cap | - | - | Owner's earnings (operating cash flow less maintenance capex) capitalised at 10%; no value tonight |
| Payback Time | - | - | Eight years of compounded free cash flow: the price at which the business pays for itself; no value tonight |
| DDM | 31.24 | -50% | Dividend discount model: next year's dividend ÷ (10% − 3% growth); needs a dividend |
| EPV | - | - | Earnings power value: current EPS capitalised at 9% with no growth; no value tonight |
| Zombie (liquidation) | -34.82 | -156% | Current assets less all liabilities, per share: the balance-sheet floor. Not in the average |
| Wall St target | 84.89 | +36% | Analysts' average 12-month price target. Not in the average |
Quality and financial health
Financial health is average - WLK passes 5 of the nine Piotroski tests, which falls one point short of the Sunday Scan's "6 or more" rule. The Financials tab on the Quote page shows which tests fail. The GLS Moat score is low at 1.1 out of 10, which says the ten-year record of revenue, earnings, margins and returns on capital has been inconsistent - growth and shocks rather than steady compounding.
Returns on capital are thin or negative - ROIC -9.9%, ROE -17.2%, ROA -7.6% - with debt at 0.73 times equity and negative free cash flow.
The dividend yield is 3.41% at a payout ratio of -22%; for a wheel trader holding assigned shares the dividend adds to the covered-call premium, and the ex-dividend date is worth knowing before a call is sold. Revenue comes mainly from Performance and Essential Materials 62%, Housing and Infrastructure Products 38% (quarter Q2 FY2026).
Institutional ownership scores 4/10, insider activity 3/10 and Congressional trading 5/10 on the GLS smart-money scales.
| Piotroski F-score | 5 / 9 | ROIC | -9.9% |
|---|---|---|---|
| GLS Moat | 1.1 / 10 | ROE | -17.2% |
| Debt / equity | 0.73 | ROA | -7.6% |
| Free-cash-flow yield | -3.3% | Payout ratio | -22% |
| Institutions | 4 / 10 | Insiders · Congress | 3 · 5 / 10 |
Wheel Score 45: Weak
WLK scores 45 out of 100 on the Wheel Score, in the Weak band (under 50), capped at 45 because the engine files it as Speculative / Distressed. Value 12/25, Health 11/20, Moat 2/15, Premium 20/20, Stability 17/20. The score is not a judgement on the company; it says the price, quality and premium do not line up for selling puts on it today.
Implied volatility is 50% on the near-the-money contracts 20-60 days out - inside the 35-60% range the Wheel Score pays full marks for: enough premium to be worth selling, not so much that the risk is unpaid. Chain open interest is 4,174 contracts across all expiries - enough for the wheel at normal size.
Volume runs at 831k shares a day on a market cap of $8.0B, with a beta of 0.69 - a low beta, so day-to-day moves are smaller than the market's; the Stability part of the Wheel Score gives that 17 of 20.
| Part | Points | From | |
|---|---|---|---|
| Value | 12 / 25 | -1% margin of safety | |
| Health | 11 / 20 | Piotroski 5/9 | |
| Moat | 2 / 15 | moat 1.1/10 | |
| Premium | 20 / 20 | implied volatility 50% | |
| Stability | 17 / 20 | 831k shares/day, $8.0B cap, beta 0.69 |
The Wheel Score ranks ~7,400 US stocks for selling cash-secured puts and covered calls; it is updated nightly and is not a recommendation. The walkthrough lesson shows how the score fits into a trade, start to finish.
Upcoming events
Westlake Corporation reports earnings on 29 Oct 2026 (before the open) - inside the 14-day window the Sunday Scan avoids, because a put sold now would carry the report's gap risk.
Earnings, dividend, IPO, split and economic calendars for the whole market, filterable to your watchlists.
Similar stocks in Chemicals - Specialty
The 12 companies below are the closest to Westlake Corporation by market cap within the Chemicals - Specialty industry, each with its own fact sheet; the Compare page puts up to eight of them side by side.
| Stock | Close | Fair value | MoS | Wheel | Mkt cap |
|---|---|---|---|---|---|
| NEU NewMarket Corporation | 887.82 | 1,257.42 | +29% | 76Good | $8.2B |
| EMN Eastman Chemical Company | 63.87 | 64.37 | +1% | 73Good | $7.3B |
| ESI Element Solutions Inc | 35.53 | 11.90 | -199% | 57Fair | $8.7B |
| AXTA Axalta Coating Systems Ltd. | 33.73 | 46.66 | +28% | 88Prime | $7.2B |
| SOLS Solstice Advanced Materials Inc. | 60.13 | 46.12 | -30% | 60Fair | $9.6B |
| SXT Sensient Technologies Corporation | 132.85 | 76.23 | -74% | 52Fair | $5.7B |
| ALB Albemarle Corporation | 98.18 | 69.68 | -41% | 58Fair | $11.6B |
| BCPC Balchem Corp | 170.53 | 79.03 | -116% | 60Fair | $5.4B |
| CLMT Calumet Inc. | 58.24 | 10.34 | -463% | 45Weak | $5.1B |
| RPM RPM International Inc. | 97.95 | 92.95 | -5% | 73Good | $12.5B |
| PRM Perimeter Solutions, Inc. | 27.49 | 1.20 | -2200% | 45Weak | $4.5B |
| CBT Cabot Corp. | 75.48 | 112.28 | +33% | 79Good | $3.9B |
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Start free See the Sunday ScanQuestions about WLK
Is WLK undervalued right now?
Not meaningfully: at 62.21 the stock trades within a few percent of the GLS average fair value of 61.73 (0.8% above fair value, data as of 16 Oct 2026).
What is the Wheel Score of WLK and what does it mean?
WLK scores 45 out of 100 (Weak). The Wheel Score blends the margin of safety (25 points), Piotroski health (20), the GLS moat (15), the option premium on offer (20) and trading stability (20) into one number that ranks stocks for the wheel strategy - selling cash-secured puts, then covered calls if assigned. 80 and above is Prime, 65-79 Good, 50-64 Fair, under 50 Weak.
What is the GLS fair value for WLK?
61.73 per share as of 16 Oct 2026 - the simple average of the 2 valuation models (out of nine: DCF, Graham Number, Graham Growth, Lynch, GLS Growth, 10 Cap, Payback Time, DDM and EPV) that produced a positive value. The models run every night on the latest filings; the Quote page lets you switch any of them off and add a margin of safety of your own.
When does Westlake Corporation report earnings next?
The next earnings report is due on 29 Oct 2026 (before the open), 13 days from the data date of 16 Oct 2026. The Calendars page lists every upcoming report with its time of day.
Does WLK have listed options, and how liquid are they?
Yes. The nightly snapshot found 258 listed contracts with 4,174 open interest across all expiries and implied volatility of 50% on the near-the-money contracts. The Options scanner lists the cash-secured put and covered call set-ups with premium and annualised yield worked out.