STRL vs TTEK

Sterling Infrastructure, Inc. vs Tetra Tech, Inc. — Valuation Comparison 2026

By CirclFi Research Team · Updated 2026-06-03 · Data from SEC EDGAR, FRED & GDELT

Quick Summary — STRL scores higher on quality with 10.0/10 vs TTEK's 9.2/10. STRL trades at $875.52 while TTEK trades at $27.13. Both analyzed daily using SEC EDGAR data across 13 institutional models.

STRL

Engineering & Construction
Sterling Infrastructure, Inc.
Quality
10.0
out of 10
Value Trap
6
SAFE
Price
$875.52
Last close
Models
12/13
Active
VS

TTEK

Engineering & Construction
Tetra Tech, Inc.
Quality
9.2
out of 10
Value Trap
29
LOW
Price
$27.13
Last close
Models
13/13
Active
STRL
Quality Score 10.0/10 — top tier
Limited to 2/13 visible models
TTEK
Bayesian DCF sees +4.7% upside
Limited to 2/13 visible models

STRL vs TTEK — Fair Value Comparison

STRL
$0$344$689$1K Price$875.52 Bayesian …$190.52 (-78.2%) Earnings …$126.52 (-85.5%)
TTEK
$0$11$22$34 Price$27.13 Bayesian …$28.40 (+4.7%) Earnings …$4.63 (-82.9%)
Market Price Model 1 Model 2

Model-by-Model Comparison

ModelType STRL Fair ValueSTRL Upside TTEK Fair ValueTTEK Upside
Bayesian DCF Intrinsic $190.52 -78.2% $28.40 +4.7%
Earnings Power Value Intrinsic $126.52 -85.5% $4.63 -82.9%
EROIC Spread Intrinsic $•••.•• ••.•% $•••.•• ••.•%
First Chicago Scenario $•••.•• ••.•% $•••.•• ••.•%
Markov DDM Intrinsic $•••.•• ••.•% $•••.•• ••.•%
ML-RIV Intrinsic $•••.•• ••.•% $•••.•• ••.•%
Dynamic NAV Asset-Based $•••.•• ••.•% $•••.•• ••.•%
PWERM Option-Based $•••.•• ••.•% $•••.•• ••.•%
Regime Cross-Sectional Relative $•••.•• ••.•% $•••.•• ••.•%
Sentiment SOTP Hybrid $•••.•• ••.•% $•••.•• ••.•%
CUCE Ensemble Ensemble $•••.•• ••.•% $•••.•• ••.•%
FTNN Topology Relative $•••.•• ••.•% $•••.•• ••.•%
RCMH-DCF Intrinsic $•••.•• ••.•% $•••.•• ••.•%

STRL vs TTEK — Which Stock Is More Undervalued in 2026?

STRL scores higher with a 10.0/10 quality rating vs TTEK's 9.2/10. Both stocks are analyzed daily using SEC EDGAR filings across 13 independent models.

How Do STRL and TTEK Valuations Compare?

At $875.52, STRL trades +78.2% above its Bayesian DCF fair value of $190.52, while TTEK at $27.13 trades +4.7% below its estimate of $28.40. STRL shows a wider gap between price and intrinsic value.

Quality of Company: STRL vs TTEK

STRL earns a Quality of Company score of 10.0/10 compared to TTEK's 9.2/10. The scores are closely matched, indicating similar fundamental quality profiles. The QOC score synthesizes 32 signals spanning profitability margins, revenue growth, free cash flow, capital allocation, and leverage.

Value Trap Risk: STRL vs TTEK

STRL carries a SAFE value trap risk (6/100) while TTEK shows LOW risk (29/100). Both companies show manageable value trap risk, suggesting their current valuations are not artificially depressed by fundamental deterioration.

Both in Engineering & Construction

Both STRL and TTEK operate in Engineering & Construction, which has 53 stocks tracked by CirclFi. Same-industry comparisons provide the most direct insight into relative valuation since both companies face similar regulatory environments, market dynamics, and competitive pressures. Both companies are analyzed with models spanning intrinsic (Bayesian DCF, EPV), scenario-based (First Chicago), regime-switching (Markov DDM, RCMH-DCF), machine learning (ML-RIV, FTNN), and ensemble methods (CUCE).

2 of 13 MODELS UNLOCKED

You’re comparing 2 models. 11 more have an opinion.

11 hidden models compare STRL vs TTEK differently — including EROIC Spread, First Chicago, Markov DDM, PWERM, and 7 more. Some may disagree with the 2 you see above.

11 additional fair values per stock Full confidence breakdown Live terminal — 5,000+ stocks

Bloomberg Terminal: ~$2,000/mo  ·  FactSet: ~$1,000/mo  ·  CirclFi: $0.90/day

See All 13 Models — $0.90/day

We don’t predict prices. We show you what 13 independent mathematical frameworks say a stock is worth — and let you decide.

See all Engineering & Construction stocks →