Is ABVX or ACHV more undervalued in 2026?

CirclFi compares Abivax SA (ABVX) and Achieve Life Sciences, Inc. (ACHV) using 13 institutional-grade valuation models. ABVX has a Quality of Company score of 4.4/10 while ACHV scores 4.3/10.

Which is a better buy — ABVX or ACHV?

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 ABVX and ACHV valuations compare?

ABVX at $129.50 and ACHV at $5.30 are compared across Bayesian DCF, EPV, EROIC Spread, First Chicago, Markov DDM, and 8 additional models.

ABVX vs ACHV Valuation Comparison 2026 — Intrinsic Value Analysis

ABVX

Biotechnology

Abivax SA

Quality

4.4

out of 10

Value Trap

SAFE

Price

$129.50

Last close

Models

9/13

Active

ACHV

Biotechnology

Achieve Life Sciences, Inc.

Quality

4.3

out of 10

Value Trap

LOW

Price

$5.30

Last close

Models

7/13

Active

Model-by-Model Comparison

Model	Type	ABVX Fair Value	ABVX Upside	ACHV Fair Value	ACHV Upside
Bayesian DCF	Intrinsic	$16.45	-87.3%	$1.57	-70.5%
Earnings Power Value	Intrinsic	$47.73	-58.3%	—	—
EROIC Spread	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
First Chicago	Scenario	$•••.••	••.•%	$•••.••	••.•%
Markov DDM	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
ML-RIV	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
Dynamic NAV	Asset-Based	$5.59	-95.7%	$0.41	-92.3%
PWERM	Option-Based	$•••.••	••.•%	$•••.••	••.•%
Regime Cross-Sectional	Relative	$•••.••	••.•%	$•••.••	••.•%
Sentiment SOTP	Hybrid	$•••.••	••.•%	$•••.••	••.•%
CUCE Ensemble	Ensemble	$•••.••	••.•%	$•••.••	••.•%

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ABVX vs ACHV — Which Stock Is More Undervalued?

ABVX scores higher with a 4.4/10 quality rating vs ACHV's 4.3/10. Both stocks are analyzed daily using SEC EDGAR filings across 13 independent models.

Comparing Abivax SA (ABVX) and Achieve Life Sciences, Inc. (ACHV) 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.

ABVX currently trades at $129.50 with a QOC of 4.4/10, while ACHV trades at $5.30 with a QOC of 4.3/10.

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).