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Stock Comparison · Structural lead, mixed market

Martin Marietta Materials vs Union Pacific: Which Stock Looks Stronger in 2026?

Union Pacific holds the cleaner structural position, with the lead spread across profitability and growth. Martin Marietta Materials still has the edge on growth, which keeps the comparison from looking entirely one-sided. The market setup broadly confirms the structural lead — Union Pacific holds the more constructive position. That puts structure and market broadly in agreement — Union Pacific'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 S&P 500 universe, making them directly comparable.

Updated 2026-05-17

This is not just a one-metric split: both profitability and stability materially support the lead. The overall score gap is 26 points in favour of Union Pacific Corporation.

Trajectory Similarity
0.68
Moderately similar
Peer-set rank: #4
within Martin Marietta Materials, Inc.'s functional peer set

This pair is matched through long-term financial trajectory similarity within the selected peer universe.

A moderate similarity means the pair is structurally comparable, but not a near-twin trajectory match.

The strongest overlap appears in revenue growth trajectory and margin consistency.

Similarity drivers
revenue growth trajectorymargin consistency
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
MLM
Martin Marietta Materials, Inc.
40
Peer-Score
Signal qualityMedium
Peer basis: S&P 500
vs
UNP
Union Pacific Corporation
66
Peer-Score
Signal qualitylow
Peer basis: S&P 500

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: MLM vs UNP Profitability 4 76 Stability 28 65 Valuation 46 73 Growth 98 40 MLM UNP
Gap Ranking
#1 Profitability +72
#2 Growth +58
#3 Stability +37
#4 Valuation +27
Price Setup

Left means cheaper relative valuation. Higher means stronger structure.

Price setup map for MLM and UNP Stronger + cheaper Stronger + richer Weaker + cheaper Weaker + richer MLMUNP Relative valuation Structural strength

Union Pacific Corporation looks stronger on relative valuation, while the broader price setup remains mixed.

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

Entry today — historical context

Where MLM and UNP each sit in their own 5-year price and valuation history.

BASED ON 5-YEAR HISTORY MLM Elevated · above norm 0th 50th 100th 26 pct gap UNP Elevated · above norm 0th 50th 100th 73rd 99th
Today MLM sits in the upper-middle of its own 5-year history (73rd percentile), while UNP sits higher in its own history (99th). Within each stock's own 5-year context, MLM is at a historically more favourable entry position than UNP. 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
Profitability
Union Pacific Corporation ranks near the top of the group on profitability; Martin Marietta Materials, Inc. sits in the weaker half.
Growth
On growth, the edge is clear — both rank well, but Martin Marietta Materials, Inc. sits noticeably higher.
Profitability — Dominant Gap
MLM
4
UNP
76
Gap+72in favour of UNP

The profitability lead is mainly driven by a 28-point operating margin advantage.

What keeps the gap from being one-sided

Earnings growth also leans toward MLM, which keeps the score lead from reading as a full growth sweep.

What this means for the comparison

The profitability edge is decisive, but growth still pushes back — the result holds, but not without a real counterweight.

Explore full peer positioning in AssetNext

Break down the MLM vs UNP comparison across all dimensions with the full interactive tool.

Explore full breakdown →
Other comparisons with conflicting dimension signals

Explore how MLM and UNP 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.