Is ATRA or BCAB more undervalued in 2026?

CirclFi compares Atara Biotherapeutics, Inc. (ATRA) and BioAtla, Inc. (BCAB) using 13 institutional-grade valuation models. ATRA has a Quality of Company score of 4.8/10 while BCAB scores 3.4/10.

Which is a better buy — ATRA or BCAB?

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 ATRA and BCAB valuations compare?

ATRA at $10.51 and BCAB at $3.93 are compared across Bayesian DCF, EPV, EROIC Spread, First Chicago, Markov DDM, and 8 additional models.

ATRA vs BCAB Valuation Comparison 2026 — Intrinsic Value Analysis

ATRA

Biological Products, (No Diagnostic Substances)

Atara Biotherapeutics, Inc.

Quality

4.8

out of 10

Value Trap

SAFE

Price

$10.51

Last close

Models

10/13

Active

BCAB

Biological Products, (No Diagnostic Substances)

BioAtla, Inc.

Quality

3.4

out of 10

Value Trap

LOW

Price

$3.93

Last close

Models

7/13

Active

Model-by-Model Comparison

Model	Type	ATRA Fair Value	ATRA Upside	BCAB Fair Value	BCAB Upside
Bayesian DCF	Intrinsic	$1.88	-82.2%	$1.60	-59.2%
Earnings Power Value	Intrinsic	$49.72	+496.1%	—	—
EROIC Spread	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
First Chicago	Scenario	$•••.••	••.•%	$•••.••	••.•%
ML-RIV	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
Dynamic NAV	Asset-Based	$11.00	+4.6%	$22.05	+461.0%
PWERM	Option-Based	$•••.••	••.•%	$•••.••	••.•%
Regime Cross-Sectional	Relative	$•••.••	••.•%	$•••.••	••.•%
Sentiment SOTP	Hybrid	$•••.••	••.•%	$•••.••	••.•%
CUCE Ensemble	Ensemble	$•••.••	••.•%	$•••.••	••.•%
FTNN Topology	Relative	$•••.••	••.•%	$•••.••	••.•%
RCMH-DCF	Intrinsic	$•••.••	••.•%	$•••.••	••.•%

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ATRA vs BCAB — Which Stock Is More Undervalued?

ATRA scores higher with a 4.8/10 quality rating vs BCAB's 3.4/10. Both stocks are analyzed daily using SEC EDGAR filings across 13 independent models.

Comparing Atara Biotherapeutics, Inc. (ATRA) and BioAtla, Inc. (BCAB) 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.

ATRA currently trades at $10.51 with a QOC of 4.8/10, while BCAB trades at $3.93 with a QOC of 3.4/10.

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).