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LyondellBasell Industries N.V. vs Westlake: Which Stock Looks Stronger in 2026?

LyondellBasell Industries holds the cleaner structural position, with the lead spread across growth and profitability. Westlake does not offset that deficit through any equally strong structural edge elsewhere. The market setup broadly confirms the structural lead — LyondellBasell Industries holds the more constructive position. That puts structure and market broadly in agreement — LyondellBasell Industries's lead looks more confirmed than conflicted.

The comparison is based on similar long-term financial trajectories, not sector labels. Both peer scores are relative to the Russell 1000 universe, making them directly comparable.

Updated 2026-08-16

This is not just a one-metric split: both growth and profitability materially support the lead. The overall score gap is 26 points in favour of LyondellBasell Industries N.V..

INDUSTRY COMPARISON

Both operate in: Specialty Chemicals

This comparison is based on industry proximity, not on functional trajectory similarity. LYB and WLK share the same industry classification.

For a similarity-based comparison, see how LyondellBasell Industries and Westlake each position within their functional peer groups in AssetNext.

Peer-Relative Score
LYB
LyondellBasell Industries N.V.
62
Peer-Score
Signal qualitylow
Peer basis: Russell 1000
vs
WLK
Westlake Corporation
36
Peer-Score
Signal qualityMedium
Peer basis: Russell 1000

Scores reflect position relative to comparable companies with similar long-term financial trajectories.

The largest gaps do not all point in the same direction.

Dimension spread: LYB vs WLK Profitability 33 8 Stability 47 42 Valuation 88 74 Growth 81 18 LYB WLK
Gap Ranking
#1 Growth +63
#2 Profitability +25
#3 Valuation +14
#4 Stability +5
Price Setup

Left means cheaper relative valuation. Higher means stronger structure.

Price setup map for LYB and WLK Stronger + cheaper Stronger + richer Weaker + cheaper Weaker + richer LYBWLK Relative valuation Structural strength

LyondellBasell Industries N.V. looks stronger on relative valuation, while the broader price setup remains mixed.

Valuation position uses Forward P/E where available.

Entry today — historical context

Where LYB and WLK each sit in their own 5-year price and valuation history.

BASED ON 5-YEAR HISTORY LYB Lower · near norm 0th 50th 100th 1 pct gap WLK Lower · near norm 0th 50th 100th 26th 27th
LYB (26th percentile) and WLK (27th percentile) both sit in the lower-middle of their own 5-year ranges. The historical entry context is broadly similar for both. This reflects entry timing, not which company is structurally stronger.

Describes historical entry positioning only. Descriptive — not investment advice.

Relative Position vs Comparable Companies
Growth
On growth, LyondellBasell Industries N.V. ranks near the top of the group; Westlake Corporation sits in the weaker half.
Profitability
Both sit in the weaker half on profitability, with LyondellBasell Industries N.V. still coming out ahead.
Growth — Dominant Gap
LYB
81
WLK
18
Gap+63in favour of LYB

One company is still expanding while the other is contracting, which creates a very wide growth split.

What keeps the gap from being one-sided

Westlake Corporation still shows lower market-fundamental divergence, which keeps the wider picture mixed rather than completely one-sided.

What this means for the comparison

The lead is built on both growth and profitability, making it broader than a single-dimension result.

Explore full peer positioning in AssetNext

Break down the LYB vs WLK comparison across all dimensions with the full interactive tool.

Explore full breakdown →
Similar growth-driven comparisons

Explore how LYB and WLK each compare against other companies in their peer groups.

Rule-based, descriptive analysis only. Derived from peer percentile dimensions. Not investment advice. Peer groups are determined algorithmically based on structural similarity — not by sector classification alone.

How AssetNext Peer Scores Work

AssetNext scores reflect each company's structural position within its functional peer group — not a ranking against all stocks simultaneously. Peers are identified by similarity across eight financial dimensions, including revenue growth trajectory, margin structure, capital intensity, and earnings stability. A score of 75 means the company ranks in the top quartile within its own peer group, not the entire market.

Four dimension scores drive the overall peer score: Growth (revenue trajectory and expansion dynamics), Quality (margin structure and capital efficiency), Valuation (peer-relative pricing on standard multiples), and Stability (earnings consistency and financial predictability). Each dimension is scored 0–100 relative to the peer group, then combined into an overall peer score using equal weighting.

Because scores are peer-relative, the same company can have slightly different scores in different index universes. On comparison pages, both companies are shown within their shared peer universe wherever possible — so the scores are directly comparable. The peer basis is stated on each score card.

Scores are recalculated periodically as underlying financial data is updated. All analysis is descriptive and rule-based — AssetNext describes structural realities and never issues buy, sell or hold recommendations.