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Aon vs Brown & Brown: Which Stock Looks Stronger in 2026?

Aon holds the cleaner structural position, with stability as the main driver and profitability adding further support. Brown & Brown still has the edge on growth, 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. Both peer scores are relative to the S&P 500 universe, making them directly comparable.

Updated 2026-05-17

Most of the lead runs through stability, while profitability helps make the separation broader. The overall score gap is 12 points in favour of Aon plc.

INDUSTRY COMPARISON

Both operate in: Insurance Brokers

This comparison is based on industry proximity, not on functional trajectory similarity. AON and BRO share the same industry classification.

For a similarity-based comparison, see how Aon and Brown & Brown each position within their functional peer groups in AssetNext.

Peer-Relative Score
AON
Aon plc
65
Peer-Score
Signal qualitylow
Peer basis: S&P 500
vs
BRO
Brown & Brown, Inc.
53
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: AON vs BRO Profitability 67 43 Stability 61 20 Valuation 83 83 Growth 41 54 AON BRO
Gap Ranking
#1 Stability +41
#2 Profitability +24
#3 Growth +13
#4 Valuation
Price Setup

Left means cheaper relative valuation. Higher means stronger structure.

Price setup map for AON and BRO Stronger + cheaper Stronger + richer Weaker + cheaper Weaker + richer AONBRO Relative valuation Structural strength

Neither company combines the stronger profile with the cheaper valuation.

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

Entry today — historical context

Where AON and BRO each sit in their own 5-year price and valuation history.

BASED ON 5-YEAR HISTORY AON Neutral · below norm 0th 50th 100th 39 pct gap BRO Lower · below norm 0th 50th 100th 53rd 15th
Today BRO sits in the lower portion of its own 5-year history (15th percentile), while AON sits higher in its own history (53rd). Within each stock's own 5-year context, BRO is at a historically more favourable entry position than AON. 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
Aon plc sits in the stronger part of the group on stability, while Brown & Brown, Inc. is closer to mid-pack.
Profitability
Both profiles are strong on profitability, but Aon plc leads clearly.
Stability — Dominant Gap
AON
61
BRO
20
Gap+41in favour of AON

The stability gap is very wide, with the stronger side looking materially steadier through time.

What keeps the gap from being one-sided

Brown & Brown still pushes back on growth, with a 29-point revenue-growth advantage that keeps the read from becoming one-way.

What this means for the comparison

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

Explore full peer positioning in AssetNext

Break down the AON vs BRO comparison across all dimensions with the full interactive tool.

Explore full breakdown →
Similar stability-and-profitability comparisons

Explore how AON and BRO 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.