Pennon holds the cleaner structural position, with the lead spread across growth and valuation. Iron Mountain still has the edge on stability, which keeps the comparison from looking entirely one-sided. In the market, Iron Mountain carries the stronger setup — intact trend against Pennon's broken trend. That leaves a split case: the structural lead stays with Pennon, but the market is not currently confirming it.
The comparison is based on similar long-term financial trajectories, not sector labels. Peer scores are normalised within each company's primary universe (IRM: S&P 500, PNN.L: STOXX 600).
The clearest score difference appears in growth, while stability still leans the other way. Pennon Group Plc leads by 13 points on the overall comparison score.
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.
Most of the shared profile comes through revenue stability and margin trend.
Scores reflect position relative to comparable companies with similar long-term financial trajectories.
The largest gaps do not all point in the same direction.
Left means cheaper relative valuation. Higher means stronger structure.
The structural gap is limited here, but current pricing still leans against Iron Mountain Incorporated.
Valuation position uses peer-relative PE percentile (idx_pct_pe) where available.
The current lead is backed by a stronger multi-year growth trajectory.
Stability still tilts materially toward Iron Mountain Incorporated, which stops the result from looking dominant across the whole profile.
The lead is built on both growth and valuation — though stability still provides a counterweight.
Break down the IRM vs PNN.L comparison across all dimensions with the full interactive tool.
Explore how IRM and PNN.L 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.
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.