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Cellnex Telecom vs Iron Mountain: Which Stock Looks Stronger in 2026?

Iron Mountain holds the cleaner structural position, with growth as the main driver and valuation adding further support. Cellnex Telecom, still has the edge on valuation, which keeps the comparison from looking entirely one-sided. On the market side, Iron Mountain is in better shape — its trend is intact while Cellnex Telecom,'s trend has broken down. That puts structure and market broadly in agreement — Iron Mountain's lead looks more confirmed than conflicted.

The comparison is based on similar long-term financial trajectories, not sector labels. Peer scores are normalised within each company's primary universe (CLNX.MC: STOXX 600, IRM: S&P 500).

Updated 2026-05-17

Most of the separation is still concentrated in growth. Iron Mountain Incorporated leads by 16 points on the overall comparison score.

Trajectory Similarity
0.75
Similar
Peer-set rank: #9
within Cellnex Telecom, S.A.'s functional peer set

These two companies are linked by measured 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.

The match is driven mainly by revenue stability and margin consistency.

Similarity drivers
revenue stabilitymargin consistency
What reduces the match
investment intensity
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
CLNX.MC
Cellnex Telecom, S.A.
19
Peer-Score
Signal qualitylow
Peer basis: STOXX 600
vs
IRM
Iron Mountain Incorporated
35
Peer-Score
Signal qualitylow
Peer basis: S&P 500

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

Score differences across key dimensions.

Dimension spread: CLNX.MC vs IRM Profitability 4 18 Stability 42 33 Valuation 30 11 Growth 0 97 CLNX.MC IRM
Gap Ranking
#1 Growth +97
#2 Valuation +19
#3 Profitability +14
#4 Stability +9
Price Setup

Left means cheaper relative valuation. Higher means stronger structure.

Price setup map for CLNX.MC and IRM Stronger + cheaper Stronger + richer Weaker + cheaper Weaker + richer CLNX.MCIRM Relative valuation Structural strength

The price setup looks more supportive for Iron Mountain Incorporated, but Cellnex Telecom, S.A. still has the stronger structure.

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

Entry today — historical context

Where CLNX.MC and IRM each sit in their own 5-year price and valuation history.

BASED ON 5-YEAR HISTORY CLNX.MC Lower · below norm 0th 50th 100th 91 pct gap IRM Elevated · above norm 0th 50th 100th 8th 99th
Today CLNX.MC sits in the lower portion of its own 5-year history (8th percentile), while IRM sits higher in its own history (99th). Within each stock's own 5-year context, CLNX.MC is at a historically more favourable entry position than IRM. 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
Growth
Iron Mountain Incorporated ranks near the top of the group on growth; Cellnex Telecom, S.A. sits in the weaker half.
Valuation
Neither side looks especially strong on valuation, though Cellnex Telecom, S.A. still ranks somewhat higher.
Growth — Dominant Gap
CLNX.MC
0
IRM
97
Gap+97in favour of IRM

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

Cellnex Telecom, S.A. still carries lower volatility exposure — that difference is real enough to prevent the comparison from becoming one-sided.

What this means for the comparison

Growth settles the comparison, while pricing and valuation keep the broader setup from looking fully aligned.

Explore full peer positioning in AssetNext

Break down the CLNX.MC vs IRM comparison across all dimensions with the full interactive tool.

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Similar growth-driven comparisons

Explore how CLNX.MC and IRM 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.