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Pentair vs The Weir Group: Which Stock Looks Stronger in 2026?

Pentair holds the cleaner structural position, with valuation as the main driver and profitability adding further support. The Weir still has the edge on stability, which keeps the comparison from looking entirely one-sided. Both sides have seen trend damage — neither carries a clear market edge right now. With both trends damaged, the structural comparison carries most of the weight here.

The comparison is based on similar long-term financial trajectories, not sector labels. Peer scores are normalised within each company's primary universe (PNR: Russell 1000, WEIR.L: STOXX 600).

Updated 2026-05-17

The lead is spread across valuation and profitability, rather than sitting in one isolated gap. The overall score gap is 15 points in favour of Pentair plc.

INDUSTRY COMPARISON

Both operate in: Specialty Industrial Machinery

This comparison is based on industry proximity, not on functional trajectory similarity. PNR and WEIR.L share the same industry classification.

For a similarity-based comparison, see how Pentair and The Weir each position within their functional peer groups in AssetNext.

Peer-Relative Score
PNR
Pentair plc
56
Peer-Score
Signal qualitylow
Peer basis: Russell 1000
vs
WEIR.L
The Weir Group PLC
41
Peer-Score
Signal qualityMedium
Peer basis: STOXX 600

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: PNR vs WEIR.L Profitability 45 26 Stability 30 49 Valuation 88 55 Growth 50 36 PNR WEIR.L
Gap Ranking
#1 Valuation +33
#2 Profitability +19
#3 Stability +19
#4 Growth +14
Price Setup

Left means cheaper relative valuation. Higher means stronger structure.

Price setup map for PNR and WEIR.L Stronger + cheaper Stronger + richer Weaker + cheaper Weaker + richer PNRWEIR.L Relative valuation Structural strength

The two profiles are relatively close, but the price setup still leans toward Pentair plc.

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

Relative Position vs Comparable Companies
Valuation
Both rank well on valuation, but Pentair plc still holds a clear edge.
Profitability
Pentair plc sits higher in the group on profitability, adding to the overall structural advantage.
Valuation — Dominant Gap
PNR
88
WEIR.L
55
Gap+33in favour of PNR

The multiple-based pricing edge comes from a forward P/E that is 3.9 turns lower.

What keeps the gap from being one-sided

Stability still leans toward The Weir Group PLC, so the lead is real without reading as one-way.

What this means for the comparison

Valuation is the clearest driver of the lead, with profitability adding further support — though stability still provides a real counterweight.

Explore full peer positioning in AssetNext

Break down the PNR vs WEIR.L comparison across all dimensions with the full interactive tool.

Explore full breakdown →
Similar valuation-and-profitability comparisons

Explore how PNR and WEIR.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.

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.