Is RLYB or RNTX more undervalued in 2026?

CirclFi compares Rallybio Corporation (RLYB) and Rein Therapeutics, Inc. (RNTX) using 13 institutional-grade valuation models. RLYB has a Quality of Company score of 5.4/10 while RNTX scores 3.6/10.

Which is a better buy — RLYB or RNTX?

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 RLYB and RNTX valuations compare?

RLYB at $14.52 and RNTX at $1.11 are compared across Bayesian DCF, EPV, EROIC Spread, First Chicago, Markov DDM, and 8 additional models.

RLYB vs RNTX Valuation Comparison 2026 — Intrinsic Value Analysis

RLYB

Biotechnology

Rallybio Corporation

Quality

5.4

out of 10

Value Trap

SAFE

Price

$14.52

Last close

Models

9/13

Active

RNTX

Biotechnology

Rein Therapeutics, Inc.

Quality

3.6

out of 10

Value Trap

LOW

Price

$1.11

Last close

Models

7/13

Active

Model-by-Model Comparison

Model	Type	RLYB Fair Value	RLYB Upside	RNTX Fair Value	RNTX Upside
Bayesian DCF	Intrinsic	$8.15	-43.8%	$0.03	-97.2%
First Chicago	Scenario	$•••.••	••.•%	$•••.••	••.•%
ML-RIV	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
Dynamic NAV	Asset-Based	$17.56	+20.9%	$0.32	-69.0%
PWERM	Option-Based	$•••.••	••.•%	$•••.••	••.•%
Regime Cross-Sectional	Relative	$•••.••	••.•%	$•••.••	••.•%
Sentiment SOTP	Hybrid	$•••.••	••.•%	$•••.••	••.•%
CUCE Ensemble	Ensemble	$•••.••	••.•%	$•••.••	••.•%
FTNN Topology	Relative	$•••.••	••.•%	$•••.••	••.•%

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RLYB vs RNTX — Which Stock Is More Undervalued?

RLYB scores higher with a 5.4/10 quality rating vs RNTX's 3.6/10. Both stocks are analyzed daily using SEC EDGAR filings across 13 independent models.

Comparing Rallybio Corporation (RLYB) and Rein Therapeutics, Inc. (RNTX) 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.

RLYB currently trades at $14.52 with a QOC of 5.4/10, while RNTX trades at $1.11 with a QOC of 3.6/10.

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).