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Stock Comparison · Structural lead, mixed market

IDEXX Laboratories vs SEI Investments Company: Which Stock Looks Stronger in 2026?

SEI Investments Company holds the cleaner structural position, with the lead spread across stability and valuation. IDEXX Laboratories does not offset that deficit through any equally strong structural edge elsewhere. The market setup broadly confirms the structural lead — SEI Investments Company holds the more constructive position. That puts structure and market broadly in agreement — SEI Investments Company'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 Russell 1000 universe, making them directly comparable.

Updated 2026-06-14

The clearest separation starts in stability, with valuation adding a second layer of support. SEI Investments Company leads by 17 points on the overall comparison score.

Trajectory Similarity
0.73
Similar
Peer-set rank: #13
within IDEXX Laboratories, Inc.'s functional peer set

This pair is matched through long-term financial trajectory similarity within the selected peer universe.

The pair sits on a clearly comparable long-term path, though it is not a near-twin match.

The strongest overlap appears in investment intensity and revenue stability.

Similarity drivers
investment intensityrevenue stability
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
IDXX
IDEXX Laboratories, Inc.
56
Peer-Score
Signal qualitylow
Peer basis: Russell 1000
vs
SEIC
SEI Investments Company
73
Peer-Score
Signal qualityMedium
Peer basis: Russell 1000

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: IDXX vs SEIC Profitability 83 74 Stability 26 83 Valuation 47 80 Growth 59 50 IDXX SEIC
Gap Ranking
#1 Stability +57
#2 Valuation +33
#3 Growth +9
#4 Profitability +9
Price Setup

Left means cheaper relative valuation. Higher means stronger structure.

Price setup map for IDXX and SEIC Stronger + cheaper Stronger + richer Weaker + cheaper Weaker + richer IDXXSEIC Relative valuation Structural strength

SEI Investments Company still looks stronger, and the price setup does not materially undermine that lead.

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

Entry today — historical context

Where IDXX and SEIC each sit in their own 5-year price and valuation history.

BASED ON 5-YEAR HISTORY IDXX Elevated · below norm 0th 50th 100th 27 pct gap SEIC Elevated · near norm 0th 50th 100th 72nd 99th
Today IDXX sits in the upper-middle of its own 5-year history (72nd percentile), while SEIC sits higher in its own history (99th). Within each stock's own 5-year context, IDXX is at a historically more favourable entry position than SEIC. 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, SEI Investments Company ranks near the top of the group; IDEXX Laboratories, Inc. sits in the weaker half.
Valuation
On valuation, the same pattern holds: both are strong, but SEI Investments Company still leads clearly.
Stability — Dominant Gap
IDXX
26
SEIC
83
Gap+57in favour of SEIC

The clearest distance comes from a steadier profile over time.

What keeps the gap from being one-sided

Stability is the one area where IDEXX Laboratories, Inc. still pushes back materially — it is the steadier name on this dimension, which keeps the result from reading as one-way.

What this means for the comparison

The lead is built on both stability and valuation, making it broader than a single-dimension result.

Explore full peer positioning in AssetNext

Break down the IDXX vs SEIC comparison across all dimensions with the full interactive tool.

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Similar stability-and-valuation comparisons

Explore how IDXX and SEIC 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.