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SPTXSeaport Therapeutics, Inc.Sell5.7·$20.38
SellModerate Confidence
Investment thesis

Seaport Therapeutics is a speculative, pre-revenue biotech with institutional accumulation and a $32.19 analyst target 56.2% above the $20.61 price, but quality is 2.5/10 and its last two reports missed estimates by wide margins.

Thesis pillars

  • Large Analyst Target Gap→Stable
  • Widening Losses Vs Estimates↑Improving
  • Binary Biotech Risk→Stable
  • +2 more pillars — see the Why tab for full reasoning

Pillars as of Oct 24, 2026

Full reasoning →

Open full analysis

Seaport Therapeutics, Inc. (SPTX) Stock Analysis

Inst Constrain edge

SellQualityModerate Confidence

Healthcare · Biotechnology

Sell if holding. Engine safety override at $20.38: Quality below floor (2.5 < 4.0) triggers a hard block regardless of the otherwise-positive setup — overall score 5.7/10 and A.R:R 3.9:1 is above the 1.5:1 BUY gate. Specifically: Below-average business quality.

Seaport Therapeutics, Inc., a clinical-stage therapeutics company, focuses on inventing and developing new medicines for patients with depression, anxiety, and other debilitating neuropsychiatric disorders. It is leveraging its proprietary Glyph platform to advance a pipeline of... Read more

$20.38+57.9% A.UpsideScore 5.7/10#80 of 241 Biotechnology
QualityF-score4 / 9FCF yield—
Stop $18.95Analyst target $32.19(−13% haircut)A.R:R 3.9:1
Analyst consensus$37.00+81.6%8 analysts
$32.19Analyst target
$20.38price
$37.00mean
$50

Sell if holding. Engine safety override at $20.38: Quality below floor (2.5 < 4.0) triggers a hard block regardless of the otherwise-positive setup — overall score 5.7/10 and A.R:R 3.9:1 is above the 1.5:1 BUY gate. Specifically: Below-average business quality. Chart setup: No clear chart pattern; technical signals are mixed. Score 5.7/10, moderate confidence.

Passes 7/8 gates (positive momentum, favorable risk/reward ratio, clean insider activity, no SEC red flags, news events none recent, semi cycle peak clear, materials cycle peak clear). Suitability: speculative.

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

Recent developments

updated 2026-10-29
TrendMatrix Research · upcoming catalyst calendar

Upcoming dated catalysts

Thu, Nov 12, 202613d to earnings· next earnings call

Thesis

Rewards
No bull case signals
Risks
Quality below floor (2.5 < 4.0)

Key Metrics

P/E (TTM)—
P/E (Fwd)-8.1
Mkt Cap$1.1B
EV/EBITDA-5.7
Profit Mgn0.0%
ROE—
Rev Growth—
Beta—
DividendNone
Rating analysts14

Quality Signals

Piotroski F4/9MoatNarrow

Model-generated analysis — not investment advice. Not a registered investment advisor. Past performance does not guarantee future results. How we score · Editorial policy

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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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Conflicts and positions. People who build TrendMatrix, or entities they control, may hold positions, long or short, in securities it covers, and may trade them at any time. Positions are not disclosed individually. Verdicts are generated by an automated model applied by the same rules to every covered stock, and are not adjusted for any position held by the people who build TrendMatrix. We do not accept payment from issuers for coverage.

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Performance. Past performance is not indicative of future results. Performance figures reflect the published model only and do not reflect any individual subscriber's actual results.

Methodology · Editorial policy & full disclaimer

Rating Breakdown

3 floor-breakers·1 ceiling hit

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

Gross Margin
0.0
Operating Margin
0.0
Net Margin
0.0
Piotroski F
4.4
Current Ratio
5.0
Moat
5.5
Quality concerns

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

Earnings History
0.0
Surprise Avg
0.0
Erm
5.0
Earnings Timing
5.0
News Activity
5.0
Earnings concerns: 0B/2MEarnings in 13 days

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

Bollinger
2.1
Support Resistance
2.7
52w Position
4.4
Gap
6.0
GatesEARNINGS PROXIMITY 13d<=14d (soft)Momentum 5.8>=5.5A.R:R 3.9 ≥ 1.5Insider activity: OKNo SEC red flagsNEWS EVENTS NONE RECENTSEMI CYCLE PEAK CLEARMATERIALS CYCLE PEAK CLEARSuitability: Speculative
RSI
64 · Neutral
↑ 20D MA↓ 50D MA↓ 200D MASupport $15.79Resistance $22.05

Price Targets

$19
$32
A.Upside+57.9%
A.R:R3.9:1

Position Sizing

ConvictionNone
Suggested %0%
Max %0%
RegimeSteady

Risk Alerts

! Quality below floor (2.5 < 4.0)

Earnings

M
M
M
M
0/4 beats
Next Earnings2026-11-12 (13d)

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 SPTX stock a buy right now?

Sell if holding. Engine safety override at $20.38: Quality below floor (2.5 < 4.0) triggers a hard block regardless of the otherwise-positive setup — overall score 5.7/10 and A.R:R 3.9:1 is above the 1.5:1 BUY gate. Specifically: Below-average business quality. Chart setup: No clear chart pattern; technical signals are mixed. Prior stop was $18.95. Score 5.7/10, moderate confidence.

What is the SPTX stock price target?

Analyst target: $32.19 (+57.9% upside). Prior stop was $18.95. Stop-loss: $18.95.

What are the risks of investing in SPTX?

Quality below floor (2.5 < 4.0).

Is SPTX overvalued or undervalued?

Seaport Therapeutics, Inc. trades at a P/E of N/A (forward -8.1). TrendMatrix value score: 9.0/10. Verdict: Sell.

What do analysts say about SPTX?

14 analysts cover SPTX with a consensus score of 4.3/5. Average price target: $37.

What does Seaport Therapeutics, Inc. do?Seaport Therapeutics, Inc., a clinical-stage therapeutics company, focuses on inventing and developing new medicines...

Seaport Therapeutics, Inc., a clinical-stage therapeutics company, focuses on inventing and developing new medicines for patients with depression, anxiety, and other debilitating neuropsychiatric disorders. It is leveraging its proprietary Glyph platform to advance a pipeline of therapies to address the unmet needs in depression and anxiety. The company's lead product candidate, GlyphAllo (SPT-300 or Glyph Allopregnanolone), is a novel, Glyphed oral prodrug of allopregnanolone, an endogenous molecule that has been clinically validated in third-party trials for the treatment of postpartum depression. Its second product candidate, GlyphAgo (SPT-320 or Glyph Agomelatine), is a novel, Glyphed oral prodrug of agomelatine, a clinically validated anxiolytic and antidepressant that is approved for the treatment of generalized anxiety disorder in Australia and major depressive disorder in Australia and the European Union. The company was founded in 2024 and is based in Boston, Massachusetts.

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