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SEPNSepterna, Inc.Sell5.0·$36.80-1.87%
SellModerate Confidence
Investment thesis

Septerna is a pre-revenue biotech with elite cash conversion (FCF margin 33%) and strong analyst support, but a consistent earnings miss streak and high short interest of 11% create meaningful downside risk that outweighs the 10.5% upside at current prices.

Thesis pillars

  • Analyst Conviction Price Target UpsideImproving
  • Fcf Positive Pre Revenue BiotechStable
  • High Implied Volatility Options RiskStable
  • +1 more pillar — see the Why tab for full reasoning

Full reasoning →

Open full analysis

Septerna, Inc. (SEPN) Stock Analysis

SellVALUE-TRAP 2/5GrowthModerate Confidence

Healthcare · Biotechnology

Sell if holding. Momentum 2.8/10 is below the 5.0 floor at $36.80 — engine's falling-knife protection flags exit rather than catching a breakdown. Specifics: Consecutive earnings misses (2); V7 low-quality RISK_OFF penalty: -0.5 (Q=5.3).

Septerna, Inc., a clinical-stage biotechnology company, discovers and develops G protein-coupled receptor (GPCR) oral small molecule products for the treatment of endocrinology, immunology and inflammation, and metabolic diseases. It develops PTH1R Program, oral small molecule... Read more

$36.80+28.2% A.UpsideScore 5.0/10#173 of 259 Biotechnology
QualityF-score8 / 9FCF yield1.69%
Stop $35.37Target $47.17(analyst − 13%)A.R:R 3.0:1
Analyst target$54.22+47.3%9 analysts
$47.17our TP
$36.80price
$54.22mean
$62

Sell if holding. Momentum 2.8/10 is below the 5.0 floor at $36.80 — engine's falling-knife protection flags exit rather than catching a breakdown. Specifics: Consecutive earnings misses (2); V7 low-quality RISK_OFF penalty: -0.5 (Q=5.3). Chart setup: No clear chart pattern; technical signals are mixed. Score 5.0/10, moderate confidence.

Passes 6/8 gates (favorable risk/reward ratio, no SEC red flags, news events none recent, earnings proximity 67d clear, semi cycle peak clear, materials cycle peak clear). Fails on weak momentum and clean insider activity. Suitability: speculative.

news + 30-day 8-K events · 5-min refresh

Recent developments

updated 2026-09-04

Recent Developments — Septerna, Inc.

Generated 2026-09-04T11:12:11Z.

TrendMatrix Research · upcoming catalyst calendar

Upcoming dated catalysts

Mon, Nov 9, 202667d to earnings· next earnings call

Thesis

Rewards
Sector modifier (Healthcare): +0.5
Analyst upside: 28%
Risks
V7 low-quality RISK_OFF penalty: -0.5 (Q=5.3)
Consecutive earnings misses (2)
Weak overall score: 5.0/10

Key Metrics

P/E (TTM)
P/E (Fwd)-19.3
Mkt Cap$1.8B
EV/EBITDA-25.7
Profit Mgn-24.5%
ROE-6.3%
Rev Growth22375.6%
Beta
DividendNone
Rating analysts16

Quality Signals

Piotroski F8/9MoatNarrow

Options Flow

P/C1.93bearish
IV86%elevated

Model-generated analysis — not investment advice. Not a registered investment advisor. Past performance does not guarantee future results.

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About TrendMatrix. TrendMatrix is a publisher of general securities research and market commentary. We publish on a regular schedule. All content is the same for every subscriber in a tier — we do not provide personalized investment advice and we do not take into account any individual subscriber's financial situation, investment objectives, risk tolerance, tax situation, or holdings.

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Methodology · Editorial policy & full disclaimer

Rating Breakdown

2 floor-breakers

Momentum below the gate floor. Component breakdown shows what dragged the score down.static

Macd
0.0
Volume
0.1
Obv
1.0
Ma Position
4.0
Rsi
9.0
Oversold in uptrend (RSI 15)Volume distribution (falling OBV)Above 200-day MA

No near-term catalyst priced in. Thesis progression will come from fundamentals grinding, not event reaction.static

Surprise Avg
0.0
Earnings History
3.3
Erm
5.0
Earnings Timing
5.0
Earnings concerns: 2B/2M
GatesMomentum 2.8<4.5INSIDER 4.17%=EXTREMEA.R:R 3.0 ≥ 1.5No SEC red flagsNEWS EVENTS NONE RECENTEARNINGS PROXIMITY 67d clearSEMI CYCLE PEAK CLEARMATERIALS CYCLE PEAK CLEARSuitability: Speculative
RSI
15 · Oversold
20D MA 50D MA 200D MAGOLDEN CROSSSupport $36.46Resistance $51.10

Price Targets

$35
$47
A.Upside+28.2%
A.R:R3.0:1

Position Sizing

ConvictionNone
Suggested %0.5%
Max %1%
RegimeRisk-Off

Risk Alerts

! momentum at 2.8 (below the engine's 4.5 threshold)
! Insider activity: 4.17%=extreme

Earnings

B
B
M
M
2/4 beats
Next Earnings2026-11-09 (67d)

Verdict History

reverse chrono — latest first
Loading history...
Verdicts are recorded on every nightly pipeline run. Rows capture transitions (verdict flips, score deltas ≥0.3, entry/TP/SL changes). Rows with a ▶ can be expanded to see the change reason. Aggregate cohort performance is tracked in the recommendation ledger.
Frequently Asked Questions
Is SEPN stock a buy right now?

Sell if holding. Momentum 2.8/10 is below the 5.0 floor at $36.80 — engine's falling-knife protection flags exit rather than catching a breakdown. Specifics: Consecutive earnings misses (2); V7 low-quality RISK_OFF penalty: -0.5 (Q=5.3). Chart setup: No clear chart pattern; technical signals are mixed. Prior stop was $35.37. Score 5.0/10, moderate confidence.

What is the SEPN stock price target?

Take-profit target: $47.17 (+28.2% upside). Prior stop was $35.37. Stop-loss: $35.37.

What are the risks of investing in SEPN?

V7 low-quality RISK_OFF penalty: -0.5 (Q=5.3); Consecutive earnings misses (2); Weak overall score: 5.0/10.

Is SEPN overvalued or undervalued?

Septerna, Inc. trades at a P/E of N/A (forward -19.3). TrendMatrix value score: 5.4/10. Verdict: Sell.

What do analysts say about SEPN?

16 analysts cover SEPN with a consensus score of 4.3/5. Average price target: $54.

What does Septerna, Inc. do?Septerna, Inc., a clinical-stage biotechnology company, discovers and develops G protein-coupled receptor (GPCR) oral...

Septerna, Inc., a clinical-stage biotechnology company, discovers and develops G protein-coupled receptor (GPCR) oral small molecule products for the treatment of endocrinology, immunology and inflammation, and metabolic diseases. It develops PTH1R Program, oral small molecule Parathyroid Hormone 1 Receptor agonists for the treatment of hypoparathyroidism; SEP-631, an oral small molecule MRGPRX2 negative allosteric modulator (NAM) for chronic spontaneous urticaria and other mast cell diseases; and TSHR Program, an oral small molecule TSHR NAM for graves' disease and thyroid eye disease. In addition, it focuses on other therapeutic areas, including neurology, women's health, cardiovascular disease, and respiratory disease. It has global collaboration and license agreement with Novo Nordisk to discover, develop and commercialize multiple potential oral small molecule therapies for metabolic-related diseases based on certain specified molecular targets. The company was formerly known as GPCR NewCo, Inc. and changed its name to Septerna Inc. in June 2021. Septerna, Inc. was incorporated in 2019 and is headquartered in South San Francisco, California.

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