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Stock Comparison · Clear separation

Illumina vs Merck & Co.: Which Stock Looks Stronger in 2026?

Merck holds the cleaner structural position, with stability as the main driver and growth adding further support. The remaining gap is narrow enough that the comparison remains open to different readings. The market setup is broadly comparable for both — no clear directional signal from price behavior. The market is not adding a decisive signal either way — the structural read carries the weight.

The comparison is based on similar long-term financial trajectories, not sector labels. Both peer scores are relative to the Russell 1000 universe, making them directly comparable.

Updated 2026-05-17

This is not just a one-metric split: both stability and growth materially support the lead.

Trajectory Similarity
0.66
Moderately similar
Peer-set rank: #5
within Illumina, Inc.'s functional peer set

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

The pair shares a valid long-term profile match, but the trajectories are not especially close.

The match is driven mainly by capital structure and recent revenue growth.

Similarity drivers
capital structurerecent revenue growth
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
ILMN
Illumina, Inc.
51
Peer-Score
Signal qualityMedium
Peer basis: Russell 1000
vs
MRK
Merck & Co., Inc.
57
Peer-Score
Signal qualitylow
Peer basis: Russell 1000

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

Score differences across key dimensions.

Dimension spread: ILMN vs MRK Profitability 75 67 Stability 20 49 Valuation 60 54 Growth 30 54 ILMN MRK
Gap Ranking
#1 Stability +29
#2 Growth +24
#3 Profitability +8
#4 Valuation +6
Price Setup

Left means cheaper relative valuation. Higher means stronger structure.

Price setup map for ILMN and MRK Stronger + cheaper Stronger + richer Weaker + cheaper Weaker + richer ILMNMRK Relative valuation Structural strength

The price setup looks more supportive for Merck & Co., Inc., but Illumina, Inc. still has the stronger structure.

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

Entry today — historical context

Where ILMN and MRK each sit in their own 5-year price and valuation history.

BASED ON 5-YEAR HISTORY ILMN Neutral · above norm 0th 50th 100th 34 pct gap MRK Elevated · near norm 0th 50th 100th 51st 84th
Today ILMN sits in the upper-middle of its own 5-year history (51st percentile), while MRK sits higher in its own history (84th). Within each stock's own 5-year context, ILMN is at a historically more favourable entry position than MRK. 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
Merck & Co., Inc. sits higher in the group on stability, adding to the overall structural advantage.
Growth
On growth, Merck & Co., Inc. is positioned higher in the group, while Illumina, Inc. is closer to the middle.
Stability — Dominant Gap
ILMN
20
MRK
49
Gap+29in favour of MRK

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

What else supports the lead

Growth still reinforces the same direction, which makes the lead look broader across the profile.

What this means for the comparison

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

Explore full peer positioning in AssetNext

Break down the ILMN vs MRK comparison across all dimensions with the full interactive tool.

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Similar stability-and-growth comparisons

Explore how ILMN and MRK 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.