Is ACA or ACM more undervalued in 2026?

CirclFi compares Arcosa, Inc. (ACA) and AECOM (ACM) using 13 institutional-grade valuation models. ACA has a Quality of Company score of 8.6/10 while ACM scores 8.7/10.

Which is a better buy — ACA or ACM?

Compare intrinsic values from 13 independent models against current market prices. CirclFi also calculates Value Trap scores. This is not financial advice — conduct your own analysis.

How do ACA and ACM valuations compare?

ACA at $127.14 and ACM at $70.87 are compared across Bayesian DCF, EPV, EROIC Spread, First Chicago, Markov DDM, and 8 additional models.

ACA vs ACM Valuation Comparison 2026 — Intrinsic Value Analysis

ACA

Engineering & Construction

Arcosa, Inc.

Quality

8.6

out of 10

Value Trap

SAFE

Price

$127.14

Last close

Models

13/13

Active

ACM

Engineering & Construction

AECOM

Quality

8.7

out of 10

Value Trap

SAFE

Price

$70.87

Last close

Models

11/13

Active

Model-by-Model Comparison

Model	Type	ACA Fair Value	ACA Upside	ACM Fair Value	ACM Upside
Bayesian DCF	Intrinsic	$14.28	-88.6%	$49.30	-30.4%
Earnings Power Value	Intrinsic	$13.48	-89.4%	$66.19	-6.6%
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	$•••.••	••.•%	$•••.••	••.•%

🔒

Unlock Full 13-Model Comparison

Access all valuation models for ACA vs ACM — including EROIC Spread, First Chicago, Markov DDM, PWERM, and 7 more.

Access Full Analysis — From $27/mo →

ACA vs ACM — Which Stock Is More Undervalued?

ACM scores higher with a 8.7/10 quality rating vs ACA's 8.6/10. Both stocks are analyzed daily using SEC EDGAR filings across 13 independent models.

Comparing Arcosa, Inc. (ACA) and AECOM (ACM) across 13 institutional-grade valuation models reveals how each company's intrinsic value stacks up against its market price. CirclFi's engine processes SEC EDGAR 10-K and 10-Q filings, FRED macroeconomic data, and GDELT news sentiment to generate independent fair value estimates daily.

ACA currently trades at $127.14 with a QOC of 8.6/10, while ACM trades at $70.87 with a QOC of 8.7/10.

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 Topology), and ensemble methods (CUCE).