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Clean Harbors vs Southwest Airlines Co.: Which Stock Looks Stronger in 2026?

The structural profiles are close, with Clean Harbors carrying a narrow edge on stability. Southwest Airlines Co still has the edge on valuation, which keeps the comparison from looking entirely one-sided. On the market side, Clean Harbors is in better shape — its trend is intact while Southwest Airlines Co's trend has broken down. That puts structure and market broadly in agreement — Clean Harbors'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 2026-05-17

Stability still does most of the heavy lifting in this comparison.

Trajectory Similarity
0.72
Similar
Peer-set rank: #71
within Clean Harbors, Inc.'s functional peer set

This comparison is anchored in long-term financial trajectory similarity within the selected peer universe.

This level of similarity signals a strong structural match, even though some dimensions still separate the two companies.

Most of the shared profile comes through recent revenue growth and capital structure.

Similarity drivers
recent revenue growthcapital structure
How to read the score
0.85–1.00 · Very similar0.70–0.84 · Similar0.55–0.69 · Moderately similarbelow 0.55 · Loose match
Peer-Relative Score
CLH
Clean Harbors, Inc.
45
Peer-Score
Signal qualitylow
Peer basis: Russell 1000
vs
LUV
Southwest Airlines Co.
44
Peer-Score
Signal qualitylow
Peer basis: Russell 1000

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

The clearest separation appears in stability.

Dimension spread: CLH vs LUV Profitability 28 29 Stability 69 30 Valuation 48 67 Growth 42 48 CLH LUV
Gap Ranking
#1 Stability +39
#2 Valuation +19
#3 Growth +6
#4 Profitability +1
Price Setup

Left means cheaper relative valuation. Higher means stronger structure.

Price setup map for CLH and LUV Stronger + cheaper Stronger + richer Weaker + cheaper Weaker + richer CLHLUV Relative valuation Structural strength

Clean Harbors, Inc. still looks stronger overall, though current pricing looks more supportive for Southwest Airlines Co..

Valuation position uses peer-relative PE percentile (idx_pct_pe) where available.

Entry today — historical context

Where CLH and LUV each sit in their own 5-year price and valuation history.

BASED ON 5-YEAR HISTORY CLH Elevated · above norm 0th 50th 100th 26 pct gap LUV Elevated · above norm 0th 50th 100th 99th 73rd
Today LUV sits in the upper-middle of its own 5-year history (73rd percentile), while CLH sits higher in its own history (99th). Within each stock's own 5-year context, LUV is at a historically more favourable entry position than CLH. This reflects entry timing, not which company is structurally stronger — peer-relative analysis is a separate question addressed above.

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

Relative Position vs Comparable Companies
Stability
Clean Harbors, Inc. ranks near the top of the group on stability; Southwest Airlines Co. sits in the weaker half.
Valuation
On valuation, the edge is clear — both rank well, but Southwest Airlines Co. sits noticeably higher.
Stability — Dominant Gap
CLH
69
LUV
30
Gap+39in favour of CLH

The clearest distance comes from a steadier profile over time.

What keeps the gap from being one-sided

Absolute pricing still looks more supportive for Southwest Airlines Co, with a forward P/E that is 23.3 turns lower there.

What this means for the comparison

The main read on stability is clearer than the broader score gap.

Explore full peer positioning in AssetNext

Break down the CLH vs LUV comparison across all dimensions with the full interactive tool.

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Similar stability-driven comparisons

Explore how CLH and LUV 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.