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CoStar Group vs Welltower: Which Stock Looks Stronger in 2026?

Welltower holds the cleaner structural position, with stability as the main driver and growth adding further support. CoStar does not offset that deficit through any equally strong structural edge elsewhere. On the market side, Welltower is in better shape — its trend is intact while CoStar's trend has broken down. That puts structure and market broadly in agreement — Welltower'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

The lead is spread across stability and growth, rather than sitting in one isolated gap. Welltower Inc. leads by 23 points on the overall comparison score.

Trajectory Similarity
0.51
Loose match
Peer-set rank: #10
within CoStar Group, Inc.'s functional peer set

These two companies are linked by measured long-term financial trajectory similarity within the selected peer universe.

The pair still fits the compare framework, though the long-term structural overlap is relatively light.

The clearest structural overlap shows up in revenue stability and investment intensity.

Similarity drivers
revenue stabilityinvestment 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
CSGP
CoStar Group, Inc.
13
Peer-Score
Signal qualitylow
Peer basis: S&P 500
vs
WELL
Welltower Inc.
36
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: CSGP vs WELL Profitability 0 13 Stability 4 60 Valuation 8 16 Growth 50 74 CSGP WELL
Gap Ranking
#1 Stability +56
#2 Growth +24
#3 Profitability +13
#4 Valuation +8
Price Setup

Left means cheaper relative valuation. Higher means stronger structure.

Price setup map for CSGP and WELL Stronger + cheaper Stronger + richer Weaker + cheaper Weaker + richer CSGPWELL Relative valuation Structural strength

The setup is mixed: neither company clearly combines the stronger profile with the more supportive price setup.

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

Entry today — historical context

Where CSGP and WELL each sit in their own 5-year price and valuation history.

BASED ON 5-YEAR HISTORY CSGP Lower · above norm 0th 50th 100th 98 pct gap WELL Elevated · above norm 0th 50th 100th 1st 99th
Today CSGP sits in the lower portion of its own 5-year history (1st percentile), while WELL sits higher in its own history (99th). Within each stock's own 5-year context, CSGP is at a historically more favourable entry position than WELL. 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
On stability, Welltower Inc. is positioned higher in the group, while CoStar Group, Inc. is closer to the middle.
Growth
Both look solid on growth, though Welltower Inc. still holds the stronger peer position.
Stability — Dominant Gap
CSGP
4
WELL
60
Gap+56in favour of WELL

The clearest distance comes from a steadier profile over time.

What else supports the lead

Earnings growth is one contributing factor within the growth lead.

What this means for the comparison

Stability is the clearest driver, and growth also supports Welltower Inc.'s broader structural position.

Explore full peer positioning in AssetNext

Break down the CSGP vs WELL comparison across all dimensions with the full interactive tool.

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Similar stability-driven comparisons

Explore how CSGP and WELL 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.