Is RYTM or SEPN more undervalued in 2026?

CirclFi compares Rhythm Pharmaceuticals, Inc. (RYTM) and Septerna, Inc. (SEPN) using 13 institutional-grade valuation models. RYTM has a Quality of Company score of 6.1/10 while SEPN scores 7.0/10.

Which is a better buy — RYTM or SEPN?

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 RYTM and SEPN valuations compare?

RYTM at $92.98 and SEPN at $31.05 are compared across Bayesian DCF, EPV, EROIC Spread, First Chicago, Markov DDM, and 8 additional models.

RYTM vs SEPN Valuation Comparison 2026 — Intrinsic Value Analysis

RYTM

Biotechnology

Rhythm Pharmaceuticals, Inc.

Quality

6.1

out of 10

Value Trap

SAFE

Price

$92.98

Last close

Models

12/13

Active

SEPN

Biotechnology

Septerna, Inc.

Quality

7.0

out of 10

Value Trap

SAFE

Price

$31.05

Last close

Models

10/13

Active

Model-by-Model Comparison

Model	Type	RYTM Fair Value	RYTM Upside	SEPN Fair Value	SEPN Upside
Bayesian DCF	Intrinsic	$26.90	-71.1%	$15.59	-49.8%
Earnings Power Value	Intrinsic	$3.54	-95.7%	—	—
EROIC Spread	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
First Chicago	Scenario	$•••.••	••.•%	$•••.••	••.•%
Markov DDM	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
ML-RIV	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
Dynamic NAV	Asset-Based	$2.57	-97.2%	$4.39	-85.9%
PWERM	Option-Based	$•••.••	••.•%	$•••.••	••.•%
Regime Cross-Sectional	Relative	$•••.••	••.•%	$•••.••	••.•%
Sentiment SOTP	Hybrid	$•••.••	••.•%	$•••.••	••.•%
CUCE Ensemble	Ensemble	$•••.••	••.•%	$•••.••	••.•%
FTNN Topology	Relative	$•••.••	••.•%	$•••.••	••.•%
RCMH-DCF	Intrinsic	$•••.••	••.•%	$•••.••	••.•%

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RYTM vs SEPN — Which Stock Is More Undervalued?

SEPN scores higher with a 7.0/10 quality rating vs RYTM's 6.1/10. Both stocks are analyzed daily using SEC EDGAR filings across 13 independent models.

Comparing Rhythm Pharmaceuticals, Inc. (RYTM) and Septerna, Inc. (SEPN) 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.

RYTM currently trades at $92.98 with a QOC of 6.1/10, while SEPN trades at $31.05 with a QOC of 7.0/10.

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).