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Puma Biotechnology, Inc. (PBYI) Stock Analysis

Educational signal · not a buy or sell recommendation · How to read this

$9.17 +$0.12 (+1.33%) |Weak · 36
Puma Biotechnology, Inc. (PBYI) bottom line: signals are mixed — the Council read leans Split View (47/100) while the AI fundamental score is 36/100 (grade D); the two lenses disagree, so weigh the breakdown below. Strongest signal: Ray Dalio bullish · Biggest watch-out: Seth Klarman bearish.Educational signal, not a buy or sell recommendation. Compare sector peers → · Read the method →
MCap: $473M| P/E Ratio: 17.10| Vol: 173K| Target: $5.00 (estimate, not advice)| 52-wk range: $4.30 – $9.74

P/E 17.10 means the share price is 17.10 times one year of earnings per share; the S&P 500 usually sits near 20-25. Market cap $473M is the value of all shares combined. Beta 1.18: the stock has moved about 18% more than the S&P 500.

Data from FMP · Methodology

For informational purposes only. Not financial advice. Machine-generated analysis by Stock Expert AI — model gemini-2.0-flash, generated May 10, 2026. Editorial oversight is systemic, not page-by-page. Editorially accountable: Sedat ANAK, Founder and Editor-in-Chief. Data sources: Financial Modeling Prep, Yahoo Finance, SEC EDGAR

Quick Answer

Puma Biotechnology, Inc. (PBYI) trades at $9.17 with MoonshotScore 36/100 (Grade D). Puma Biotechnology, Inc. is a biopharmaceutical company focused on developing and commercializing innovative products for cancer care. Market cap: $473M, Sector: Healthcare.

Price as of Sep 11, 2026 · Last analyzed: May 10, 2026
Puma Biotechnology, Inc. is a biopharmaceutical company focused on developing and commercializing innovative products for cancer care. Their lead product, Neratinib, targets HER2-positive breast cancer and other solid tumors.

PBYI stock analysis for 2026: The stored analyst price target for Puma Biotechnology, Inc. is $5.00; its date is unknown, so no upside or downside is derived from it against the current price of $9.17. The AI MoonshotScore is 36/100, in the Weak band (below 45) — a research signal, not a recommendation. Key factors: analyst coverage, AI-driven quantitative scoring.

Watch the PBYI film Every key number, told as a short cinematic story — just press play. ~2 min

These figures come from statements filed 12 months ago — the most recent this company has published.

Council Score · Weighted Average of 3 Disciplines
Split View 47/100 · C

PBYI: 1/3 scored disciplines lean bearish. Dominant signal: Seth Klarman bearish.

How is this calculated? →
MoonshotScore · Five-pillar engine · 36/100
Business Quality
Strong Is this a genuinely good business?
Financial Safety
Strong Could this blow up on me?
Valuation
Strong Am I paying a fair price?
Growth Durability
Moderate Is the growth real and likely to last?
Momentum
Strong Is the market already moving on this?

Strongest side: Business Quality (9/10, Strong). Weakest side: Growth Durability (6/10, Moderate).

Legends Council · 5 Legends + Moon AI

AI simulations built from the named investors' published principles. Not affiliated with, endorsed by, or the opinion of these individuals. How these lenses are built

Dalio-style lens (simulated)Ray Dalio
Favorable read
Griffin-style lens (simulated)Ken Griffin
Favorable read
Englander-style lens (simulated)Izzy Englander
Unfavorable read
Klarman-style lens (simulated)Seth Klarman
Unfavorable read
Moon AI lens (model)
Favorable read
Munger's Mindset · Balance Sheet & Valuation
Financial Health
Moderate
Margin of Safety
Fairly Valued
Council Score · Weighted Average of 3 Disciplines · See tabs for details →
The lenses are modelled on the published principles of the investors named. We are not affiliated with them, they have not endorsed this, and it is not their opinion of this stock.

Why this analysis is different

  • A sector-relative MoonshotScore — five pillars (business quality, financial safety, valuation, growth durability, momentum) re-ranked nightly against the full universe of US-listed common stocks.
  • An AI Council read across up to eight perspectives — value, macro, quantitative, and momentum lenses — that shows where they disagree instead of averaging the tension away.
  • Figures come straight from FMP and Yahoo Finance filings data. The AI writes the narrative around the numbers — it never edits the numbers.

Puma Biotechnology, Inc. (PBYI) Healthcare & Pipeline Overview

CEOAlan H. Auerbach
Employees179
HeadquartersLos Angeles, CA, US
IPO Year2012

Puma Biotechnology, Inc. is a biopharmaceutical firm specializing in the development and commercialization of cancer therapies, primarily focused on its lead drug Neratinib for HER2-positive breast cancer. With licensing agreements spanning globally, Puma aims to enhance cancer treatment outcomes and expand its therapeutic applications.

Data Provenance | Financial Data Quantitative Analysis NASDAQ Analysis: May 10, 2026

What Is the Investment Thesis for PBYI?

AI-written as of May 10, 2026 — figures and tone reflect the data available then, not today's score.

Puma Biotechnology presents a focused investment opportunity within the biotechnology sector, primarily driven by the potential of Neratinib. With a P/E ratio of 17.10 and a profit margin of 10.7%, Puma demonstrates current profitability. Key growth catalysts include expanding Neratinib's indications and penetrating new geographic markets through existing licensing agreements. The company's gross margin of 74.5% suggests strong pricing power. However, investors should be aware of the risks associated with pharmaceutical development, including regulatory hurdles and competition from other cancer therapies. Successful clinical trials and regulatory approvals for new indications are critical for future growth.

Based on FMP financials and quantitative analysis

PBYI Key Highlights

AI-written as of May 10, 2026 — figures and tone reflect the data available then, not today's score.

Market capitalization of $473M reflects investor valuation of Puma Biotechnology's current and future potential.

  • P/E ratio of 17.10 indicates the company's profitability relative to its stock price.
  • Gross margin of 74.5% demonstrates efficient cost management in producing and selling its products.
  • Profit margin of 10.7% shows the percentage of revenue that turns into profit after all expenses, including cost of goods sold, are deducted.
  • Beta of 1.18 suggests that Puma Biotechnology's stock is slightly more volatile than the overall market.

Who Are PBYI's Competitors?

PBYI is benchmarked below against 8 industry peers on price, market cap, and our AI MoonshotScore.

Company Price Change Market Cap MoonshotScore
PFE Pfizer Inc. $27.65 -0.47% $158B 665-pillar
NWPHF Newron Pharmaceuticals S.p.A. $20.00 0.00% $416M 689-signal
CRMD CorMedix Inc. $7.96 -0.06% $624M 885-pillar
MDXG MiMedx Group, Inc. $4.60 -1.71% $671M 875-pillar
QTTB Q32 Bio Inc. $10.93 +1.96% $325M 685-pillar
ZVRA Zevra Therapeutics, Inc. $12.01 -0.41% $710M 925-pillar
CLYM Climb Bio, Inc. $14.32 -4.21% $820M 745-pillar
RIGL Rigel Pharmaceuticals, Inc. $47.26 -0.04% $874M 935-pillar

AI Score by Stock Expert AI · Price data: FMP / Yahoo Finance This table mixes two scoring engines — compare a number only with others carrying the same tag.

What Are PBYI's Key Strengths?

Approved drug (Neratinib) for HER2-positive breast cancer.

  • Established licensing agreements for global distribution.
  • Experienced management team.
  • Strong gross margin.

What Are PBYI's Weaknesses?

Reliance on a single product (Neratinib).

  • Competition from established pharmaceutical companies.
  • Potential for generic competition upon patent expiration.
  • Relatively small company size.

What Could Drive PBYI Stock Higher?

Potential FDA approval for Neratinib in new indications (e.g., HER2 mutation-positive solid tumors).

  • Ongoing clinical trials evaluating Neratinib in combination with other therapies.
  • Expansion of licensing agreements to new geographic regions.
  • Publication of clinical trial data supporting the efficacy of Neratinib.

What Are the Key Risks for PBYI?

Financial-distress signal — its Altman Z-Score of -1.79 sits in the distress zone (elevated bankruptcy risk).

  • Insider selling — insiders were net sellers of roughly $1.1M recently.
  • Regulatory setbacks or delays in obtaining approvals for new indications.
  • Unsuccessful clinical trial results.
  • Competition from other cancer therapies.
  • Patent expiration and generic competition.
  • Reliance on a single product (Neratinib).

What Are the Growth Opportunities for PBYI?

  • Expanding Neratinib's Indications: Puma has the opportunity to expand the use of Neratinib beyond its current approved indication for early-stage HER2-overexpressed/amplified breast cancer. Investigating Neratinib for HER2 mutation-positive solid tumors could significantly broaden its market reach. The market for solid tumor therapies is substantial, with a global market size estimated at billions of dollars. Success in clinical trials and subsequent regulatory approvals are crucial for realizing this growth opportunity. Timeline: Ongoing clinical trials with potential data readouts within the next 2-3 years.
  • Geographic Expansion Through Licensing Agreements: Puma's existing licensing agreements with companies like Specialised Therapeutics Asia Pte Ltd. and CANbridge BIOMED Limited provide a pathway for geographic expansion. These partnerships allow Puma to enter new markets without significant direct investment. The global market for cancer therapies is expanding, particularly in Asia. Successful execution of these partnerships is key to unlocking this growth potential. Timeline: Ongoing, with potential for increased revenue generation within the next 1-2 years.
  • Combination Therapies: Exploring Neratinib in combination with other cancer therapies represents another growth opportunity. The combination of Neratinib with capecitabine for advanced or metastatic HER2-positive breast cancer is one such example. Combination therapies can often improve treatment outcomes and address drug resistance. The market for combination cancer therapies is growing, driven by the need for more effective treatments. Timeline: Ongoing clinical trials with potential data readouts within the next 2-3 years.
  • Strategic Acquisitions or Partnerships: Puma could pursue strategic acquisitions or partnerships to expand its product pipeline or access new technologies. Acquiring complementary assets or partnering with other biotechnology companies could accelerate growth and diversify risk. The biotechnology industry is characterized by frequent mergers and acquisitions. Successful execution of such deals requires careful due diligence and integration. Timeline: Opportunistic, depending on market conditions and available opportunities.
  • Direct Sales Force Expansion: While Puma currently relies on partnerships for some geographic regions, expanding its direct sales force in key markets could enhance its commercial capabilities. A direct sales force allows for greater control over marketing and sales efforts. The market for cancer therapies is highly competitive, and effective commercialization is essential for success. Timeline: Potential expansion within the next 3-5 years, contingent on market analysis and financial resources.

What Are PBYI's Competitive Advantages?

  • Patent protection for Neratinib, providing exclusivity in key markets.
  • Established licensing agreements with global pharmaceutical companies, expanding market reach.
  • Clinical data supporting the efficacy and safety of Neratinib.
  • Expertise in developing and commercializing cancer therapies.

What Does PBYI Do?

Puma Biotechnology, Inc., founded in 2010 and headquartered in Los Angeles, California, is a biopharmaceutical company dedicated to innovating cancer care. The company's primary focus is on the development and commercialization of PB272 neratinib (oral), a kinase inhibitor. Neratinib is approved for use in patients with early-stage HER2-overexpressed/amplified breast cancer following adjuvant trastuzumab-based therapy. Puma is also investigating neratinib in combination with capecitabine for adult patients with advanced or metastatic HER2-positive breast cancer, as well as for HER2 mutation-positive solid tumors. The company operates both in the United States and internationally, collaborating with partners through licensing and sub-licensing agreements. These agreements include partnerships with Pfizer, Inc., Specialised Therapeutics Asia Pte Ltd., CANbridge BIOMED Limited, Pint Pharma International SA, Knight Therapeutics, Inc., Pierre Fabre Medicament SAS, and Bixink Therapeutics Co., Ltd., expanding the global reach of its therapies.

What Products and Services Does PBYI Offer?

  • Develop and commercialize pharmaceutical products for cancer treatment.
  • Focus on therapies for HER2-positive breast cancer and other solid tumors.
  • Market Neratinib (PB272), an oral kinase inhibitor, for early-stage HER2-overexpressed/amplified breast cancer.
  • Conduct clinical trials to evaluate Neratinib in combination with other therapies.
  • Establish licensing agreements with other pharmaceutical companies for global distribution.
  • Seek regulatory approvals for new indications and markets.

How Does PBYI Make Money?

  • Develop proprietary cancer therapies.
  • Commercialize approved therapies through direct sales and marketing in some regions.
  • License and sub-license rights to other companies for distribution in specific territories.
  • Generate revenue from product sales and licensing fees.

What Industry Does PBYI Operate In?

Puma Biotechnology operates within the competitive biotechnology industry, which is characterized by rapid innovation and stringent regulatory requirements. The market for cancer therapies is substantial and growing, driven by an aging population and increased cancer incidence. Puma's focus on HER2-positive breast cancer positions it within a specific niche of this market. Competition includes established pharmaceutical companies and other biotechnology firms developing similar therapies. Success in this industry requires strong research and development capabilities, successful clinical trials, and effective commercialization strategies.

Who Are PBYI's Key Customers?

  • Patients with HER2-positive breast cancer.
  • Oncologists and other healthcare professionals who prescribe cancer therapies.
  • Hospitals and cancer treatment centers.
  • Pharmaceutical companies that license Puma's products.
Model self-rating on this text: 66% (not a measure of the evidence) Updated: May 10, 2026

Research confidence

High 100/100

Broad, current evidence sits behind this analysis.

  • Scored on 97% of our measures
  • Price is current
  • Latest filing 36 days ago
  • Covered by analysts

Why 36?

Measured against companies in the same sector. The figures below are the factor contributions the scoring engine itself produced.

What is helping

  • +0.78 Gross profit per dollar of assets (Business Quality)
  • +0.54 Financial-health checklist (Financial Strength)
  • +0.47 Return on equity (Business Quality)

What is holding it back

  • -0.07 Volatility vs the market (Financial Strength)

Risk penalties applied

  • -1.89 Bankruptcy-risk score in the distress zone

Contribution = how far the company sits from its sector on that measure, weighted by how much the pillar counts. Not investment advice. How the score is built →

MoonshotScore History

Recorded daily since 2026-08-23 · 19 snapshots

2026-08-23 34
2026-08-26 34
2026-08-29 35
2026-09-01 36
2026-09-04 36
2026-09-07 36
2026-09-10 36

What changed?

The grade moved from 34 to 36 (+2).

What moved it up or down:

  • +8 Momentum
  • +2 Growth Durability
  • +1 Business Quality

Held back by:

  • -2 Financial Safety
  • -2 Valuation

Over the same 18 days the stock moved -2.1%.

Company Profile

Puma Biotechnology, Inc. operates in the Biotechnology industry within the Healthcare sector. It is headquartered in Los Angeles, US. The company is led by CEO Alan H. Auerbach. PBYI has traded publicly since 2012.

ROE 21%

Key Financial Metrics

Return on equity for Puma Biotechnology, Inc. stands at 20.9%, a gauge of how efficiently it converts shareholder capital into profit. Return on assets is 13.9%, showing how much profit it generates from its asset base. PBYI trades at a trailing price-to-earnings ratio of 17.10, below the Healthcare sector average of ~21.50x. Its free cash flow yield is 8.9%, a gauge of the cash the business throws off relative to its market value. A current ratio of 2.91 indicates the company holds enough short-term assets to cover its near-term obligations. Its earnings yield is 5.8%, the inverse of the P/E and a quick read on earnings relative to price.

PBYI Valuation & Market Position

With a $473M market cap, Puma Biotechnology, Inc. sits in the small-cap segment of the market. Relative to its peer group, PBYI's quantitative score of 36/100 is below the peer average of 80/100.

Quarterly Financial Performance: Puma Biotechnology, Inc.

Revenue for Puma Biotechnology, Inc. came in at $56.5M during Q2 FY2026, a 26.1% improvement versus the preceding quarter. The company recorded net income of $8.2M, with diluted EPS of $0.16. Quarter-over-quarter revenue has been mixed, typical for a small-cap company operating in Healthcare. Across the four most recent quarters, PBYI averaged $0.13 in diluted EPS.

F-Score 7/9

Financial Health

Puma Biotechnology, Inc.'s Piotroski F-Score is 7/9, a 9-point checklist of profitability, leverage and efficiency — signaling solid underlying fundamentals. Its Altman Z-Score of -1.79 places it in the distress zone, a signal of elevated financial risk.

8/8 beats

Earnings Track Record

Puma Biotechnology, Inc. has beaten Wall Street's EPS estimate in 8 of its last 8 reported quarters — a consistent record of delivering on expectations. Reported results have landed about 172.7% above estimates on average.

Net buying

Insider Activity

Over the past six months, Puma Biotechnology, Inc. insiders filed 15 SEC Form 4 transactions — 8 sales and 7 purchases. On net that is roughly 48K shares acquired (about $1.1M) — insiders putting money in tends to read as conviction.

PBYI Financials

Fundamental Snapshot

Revenue Growth (FY)
-0.9%
Net Income Growth (FY)
+2.8%
Free Cash Flow Growth (FY)
+7.4%
P/E (TTM)
17.10
Return on Equity (TTM)
+20.9%
Current Ratio
2.9
EV/EBITDA (TTM)
9.0

Based on FMP financials and quantitative analysis · FY 2025

Bull Case vs Bear Case

Bull Case

  • Approved drug (Neratinib) for HER2-positive breast cancer.
  • Established licensing agreements for global distribution.
  • Experienced management team.
  • Strong gross margin.

Bear Case

  • Reliance on a single product (Neratinib).
  • Competition from established pharmaceutical companies.
  • Potential for generic competition upon patent expiration.
  • Relatively small company size.

AI-generated arguments based on insider flow, news sentiment and technicals — not financial advice · September 2026

Recent Quarterly Results

Quarter Revenue Net Income EPS
Q2 FY2026 $57M $8M $0.16
Q1 FY2026 $45M -$4M -$0.07
Q4 FY2025 $75M $13M $0.26
Q3 FY2025 $54M $9M $0.17

Q2 FY2026 · filed 6 Aug 2026 · SEC EDGAR →

Based on FMP financials and quantitative analysis

PBYI Latest News

PBYI Analyst Consensus

Consensus Rating

Aggregated Buy/Hold/Sell recommendations collected by Financial Modeling Prep for PBYI.

Price Targets

Consensus target: $5.00

PBYI MoonshotScore

36/100

What does this score mean?

MoonshotScore is Stock Expert AI's proprietary 0-100 research rating, not a buy or sell recommendation. PBYI scores 36/100 (Grade D): the number comes from the five-pillar engine (business quality, financial safety, valuation, growth durability, momentum), re-ranked daily against sector peers.

Leadership: Alan H. Auerbach

CEO

Alan H. Auerbach is the CEO of Puma Biotechnology, Inc. He has extensive experience in the biotechnology and pharmaceutical industries. Prior to founding Puma Biotechnology, Auerbach held various leadership positions in other biotech companies. His background includes expertise in finance, business development, and strategic planning. Auerbach's experience in the industry spans several decades, providing him with a deep understanding of the challenges and opportunities in the biotechnology sector.

Track Record: Under Alan Auerbach's leadership, Puma Biotechnology has successfully developed and commercialized Neratinib, a key drug for HER2-positive breast cancer. He has also secured strategic licensing agreements with major pharmaceutical companies, expanding the global reach of Puma's therapies. Auerbach has overseen the company's growth from its founding to its current market position. His strategic decisions have been instrumental in driving Puma's success.

Common Questions About PBYI (Healthcare)

What does the AI Score mean for PBYI?

PBYI holds an AI Score of 36/100 (Grade: D). This is an educational research signal, not a buy or sell recommendation. The number comes from the five-pillar engine (business quality, financial safety, valuation, growth durability, momentum), re-ranked daily against sector peers. Puma Biotechnology, Inc. is a biopharmaceutical company focused on developing and commercializing innovative products for cancer care.

Is PBYI a good stock?

Stock Expert AI does not rate PBYI buy, sell or hold. Puma Biotechnology, Inc. carries a MoonshotScore of 36/100 on the five-pillar engine, a research rating against its peers. Whether it fits is your call: check what it sells, whether it earns, what the price assumes, and what would prove you wrong.

What do analysts say about PBYI stock?

Analyst coverage of Puma Biotechnology (PBYI) typically focuses on the potential of Neratinib and its future growth prospects. Key valuation metrics include the company's P/E ratio and market capitalization.

What are the key factors to evaluate for PBYI?

Puma Biotechnology, Inc. (PBYI) holds a MoonshotScore of 36/100 (low). P/E: 17.10x vs the S&P 500's ~20-25x. Not financial advice.

How frequently does PBYI data refresh on this page?

PBYI's price was last updated on Sep 11, 2026 and refreshes on page view during U.S. market hours; the quote is a provider snapshot, not an exchange feed. Fundamentals update after quarterly filings; the MoonshotScore recalculates nightly; news aggregates continuously.

What has driven PBYI's recent stock price performance?

Puma Biotechnology, Inc. (PBYI) moves on earnings results, analyst revisions, sector rotation, and market sentiment. Notable catalyst: Approved drug (Neratinib) for HER2-positive breast cancer. See the News tab for the latest drivers. Past performance does not predict future results.

Should investors consider PBYI overvalued or undervalued right now?

Puma Biotechnology, Inc. (PBYI) trades at 17.10x earnings. Compare P/E, P/S, and EV/EBITDA against sector peers for a full view.

Can I buy fractional shares of PBYI?

Yes, most major brokerages offer fractional shares of Puma Biotechnology, Inc. (PBYI) with no minimum purchase requirement. This means you can invest any dollar amount regardless of the share price. Check your brokerage platform for specific terms, fees, and fractional share availability.

How can I track PBYI's earnings and financial reports?

Puma Biotechnology, Inc. (PBYI) reports quarterly earnings approximately 4-6 weeks after each fiscal quarter ends. You can track earnings dates, revenue and EPS estimates, and actual results on this page's Financials tab. Earnings surprises (beats or misses) often cause significant short-term price moves. Your brokerage can send alerts for PBYI earnings announcements.

Disclaimer: This content is for informational purposes only and does not constitute investment advice. Always do your own research and consult a financial advisor.

Official Resources

Price as of Analysis updated MoonshotScore as of
Data Sources & Methodology
Market data powered by Financial Modeling Prep & Yahoo Finance. AI analysis by Stock Expert AI proprietary algorithms. Technical indicators via industry-standard calculations. Last updated: .
Data Provenance
Sources: Financial Modeling Prep (FMP) — Primary · Yahoo Finance — Fallback · Alpaca — Tertiary
Last fetched:
Cache TTL: Quote 5min · Profile 7d · Financials 7d · Insider 48h
How we use AI: Numbers are pulled directly from FMP & Yahoo Finance — our AI writes the analysis, it never edits the figures.
Data provided as-is for educational purposes. Not financial advice. Methodology

Data provided for informational purposes only.

Analysis Notes
  • Information is based on available data and may be subject to change.
  • Investment decisions should be based on individual risk tolerance and financial circumstances.
Data Sources
Financial Modeling Prep (FMP)Stock Expert AI proprietary analysis

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