Pulmonx Corp logo

Pulmonx Corp(LUNG)

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EXPLORE ADVISORIES AND THEIR HISTORY
QUALITY SIGNAL
1-STAR RATING
PASS
LAST CLOSE
$1.78
10/14/2026
(24-hour delay)

Advisory History & Simulated Performance *

*as per simulation (see disclosures)
  • ALL
  • 1Y
  • 1M
  • 1W
  • BUY Advisory
  • SELL Advisory (Profit)
  • SELL Advisory (Loss)
  • Profit
  • Loss
  • PASS (Skip)
Upturn Stock price based on last close iconStock price based on last close
Simulated performance—not actual client returns. Excludes advisory subscription fees, trading commissions, and taxes, which would reduce returns. Results depend on calculation assumptions and do not guarantee future outcomes. See Disclosures for full methodology, assumptions, and limitations.

Advisory Performance History (Simulated)Advisory Performance History info

Simulated performance—not actual client returns. Excludes advisory subscription fees, trading commissions, and taxes, which would reduce returns. Results depend on calculation assumptions and do not guarantee future outcomes. See Disclosures for full methodology, assumptions, and limitations.

Upturn Advisory & Investor View for LUNG

10/14/2026: LUNG (1-star) is currently NOT-A-BUY. Pass it for now.

Pulmonx Corp is a medical technology company focused on providing minimally invasive treatments for severe emphysema, primarily through its Zephyr Endobronchial Valve system. The company maintains a leading position in this specialized niche, supported by strong clinical data and its proprietary StratX AI diagnostic platform. Its primary investment story hinges on global market penetration and increasing the standard-of-care adoption for its procedures. Investors should weigh this potential against significant execution risks, including the need for specialized physician training and potential regulatory or reimbursement hurdles. This stock may suit growth-oriented investors looking for exposure to specialized medical technology, provided they are comfortable with the inherent volatility of a non-profitable, niche device company.

How to Read the Upturn Advisory

The Upturn Star Rating and the current BUY, SELL, or PASS advisory are generated by Upturn’s AI advisory engine based on proprietary signal analysis, price behavior, advisory history, and historical signal performance.

Company fundamentals, valuation, risks, and news provide supporting context about the business.

Investor Fit

Investor styleFitWhy
Growth investorStrong fitThe company is in an early commercial stage with significant potential for market expansion in the COPD sector.
Momentum investorMixed fitThis style is conditional on positive market sentiment and sustained volume growth.
Value investorWeak fitThe company is not currently profitable, making traditional value metrics like P/E inapplicable.
Dividend investorWeak fitPulmonx is a growth-focused medical device firm and does not pay dividends.
Low-risk investorWeak fitThe high volatility and regulatory risks of this sector are not suitable for low-risk portfolios.

Risk Profile

Risk factorLevelWhy it matters
Price volatilityHighSmall-cap medical device stocks often experience sharp price swings based on clinical or regulatory news.
Valuation riskMedium / highHigh growth expectations are priced into the stock, leaving little room for error in execution.
Competition risk (respiratory devices)MediumLarge incumbents with significant R&D budgets could potentially develop competing therapies.
Business qualityMediumThe company has strong intellectual property but lacks the diversified revenue base of large-cap peers.
Dividend incomeLow / noneInvestors should not expect income generation from this asset.
Execution riskHighThe company must continue to successfully train physicians and gain hospital adoption to achieve its long-term goals.

Price Behavior

Strong Uptrend
PRICE PATH

Strong Uptrend

The stock has maintained a strong upward price trend across the last three quarters.

Extreme Price Shocks
PRICE STABILITY

Extreme Price Shocks

The stock has experienced exceptionally large and disruptive price movements during the period.

Analysis of Past Performance

Type Stock
Historic Profit -70.45%
Avg. Invested days 22
Today’s Advisory PASS
Upturn Advisory Rating upturn star rating icon
Upturn Advisory Performance Upturn Advisory Performance icon 1.0
Stock Returns Performance Upturn Returns Performance icon 1.0
Upturn Profits based on simulation icon Profits based on simulation
Upturn last close icon Last Close 10/14/2026

Upturn Scorecard

Upturn Star Rating

★★★★★
LUNG receives a 3-star rating, supported by solid analyst coverage. The rating is constrained by weak unit economics, and weak price momentum.

Company Fundamentals

★★★★★
LUNG has moderate overall fundamentals (3 stars), with moderate financial health, moderate growth momentum, and solid ownership. In FY2025 versus FY2024, moderate earnings growth (+4.2%) is partially offset by weak cash generation (FCF margin -36.4%), moderate revenue growth (+8.0%), weak profitability (net margin -59.7%).

Financial Health Rating

★★★★★
LUNG's financial health is supported by solid liquidity, including working-capital and asset support (WC/assets 63.1%). Cash strength is soft (2 stars), which helps explain the 3-star overall score.

Growth Momentum Score

★★★★★
Revenue growth is LUNG's strongest growth driver at +8.0% FY2025 versus FY2024 (moderate, 3 stars). Earnings growth (+4.2%, moderate) and free-cash-flow growth (+0.3%, moderate) are also constructive, though not equally high across every growth measure.

Ownership

★★★★★
Institutional ownership is 62.8% and approximately 87.6% of outstanding shares are publicly tradable, supporting liquidity and institutional participation. Insider ownership of 4.64% provides only moderate management-shareholder alignment.

Top 5 Institutional Investors

PRIMECAP Management Company 10.74%
Morgan Stanley - Brokerage Accounts 6.81%
Soleus Capital Management, L.P. 6.49%
Vanguard Capital Management, LLC 3.80%
ExodusPoint Capital Management, LP 2.85%

Unit Economics (Per $1K Revenue)

★★★★★
LUNG generates approximately $742 of gross profit, $-593 of operating income, and $-364 of free cash flow for every $1,000 of revenue. Based on FY2025 results. Operating losses and cash burn explain the 1-star rating, with weak cash conversion and weak capital efficiency.

Economic Dimensions

★★★★★
Effective Tax Rate: -1.17% (Tax Credit)

Quantitative Style Profile

★★★★★
LUNG has a liquid, relatively low-volatility profile. Weak momentum is the primary drawback.

Style Classification

Quality Focused

Value-OrientedLow VolatilitySmall / Mid Cap RiskHighly Liquid / Institution-Friendly

Key Highlights

Company Size Small-Cap Stock
Market Capitalization 75.59M USD
Price to earnings Ratio -
1Y Target Price 3.4
Price to earnings Ratio -
1Y Target Price 3.4
Volume (30-day avg) 285.0K shares
Beta 0.34
52 Weeks Range 1.13 - 2.89
Updated Date 10/13/2026
52 Weeks Range 1.13 - 2.89
Updated Date 10/13/2026
Dividends yield (FY) -
Basic EPS (TTM) -1.15

How Company Makes Money

Business areaWhat it includesRetail investor read
Zephyr Valve SalesRevenue from the sale of endobronchial valves to hospitals and medical facilities.This is the primary way the company generates revenue.
StratX ServicesFees for AI-based quantitative CT scan analysis.This supports the core product and adds a recurring software-service component.

Analyzing Revenue: Products, Geography and Growth

Revenue by Geography

Geography revenue - Year on Year

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Valuation

Trailing PE -
Forward PE 28.33
Enterprise Value 86.91M
Price to Sales(TTM) 0.86
Enterprise Value 86.91M
Price to Sales(TTM) 0.86
Enterprise Value to Revenue 0.99
Enterprise Value to EBITDA -5.62
Shares Outstanding 42.95M
Shares Floating 37.61M
Shares Outstanding 42.95M
Shares Floating 37.61M
Percent Insiders 4.64
Percent Institutions 62.81

Financial Metrics

🧭 Investment Snapshot

Total Revenue (Scale)

Information icon Total money earned from selling products or services before any costs. It is needed to understand the scale of the business and its ability to generate income.

Net Income (Profit)

Information icon Final profit after all expenses, interest, and taxes are deducted. It is needed to determine the overall profitability available to shareholders.

Free Cash Flow (Cash Strength)

Information icon Cash remaining after operating activities and capital expenditures, showing cash available for growth. It is needed to evaluate the company’s ability to invest, pay dividends, or reduce debt.

📈 Growth & Strength

Operating Income (Core Profit)

Information icon Profit from core operations after deducting all operating expenses. It is needed to measure how efficiently the company runs its primary business activities.

EBITDA (Cash Earnings)

Information icon Earnings before interest, taxes, depreciation, and amortization, indicating operating cash potential. It is needed to compare operating performance across companies without accounting or financing differences.

Gross Profit (Unit Profitability)

Information icon Revenue minus cost of revenue, showing profit after direct production costs. It is needed to evaluate core business profitability before overhead expenses.

🛡️ Financial Safety

Cash (Liquidity Buffer)

Information icon Total cash and cash equivalents on hand. It is needed to evaluate immediate liquidity and financial flexibility.

Total Debt (Leverage Risk)

Information icon Total debt including both short-term and long-term components. It is needed to assess the company’s leverage and financial risk.

Net Working Capital (Short-Term Health)

Information icon Current assets minus current liabilities, indicating short-term liquidity strength. It is needed to assess whether the company can meet its short-term obligations.

🧱 Balance Sheet Strength

Stockholder Equity (Net Worth)

Information icon Total equity value held by shareholders. It is needed to understand the net worth of the company from the owners’ perspective.

Total Assets (Asset Base)

Information icon The full value of everything the company owns, including cash, inventory, equipment, and investments. It is needed to understand the resource base used to generate revenue.

Income Before Tax (Pre-Tax Earnings)

Information icon Income before provision for income taxes. It is needed to analyze profitability independent of tax structures.

⚙️ Cost & Drag Factors

Cost of Revenue (Production Cost)

Information icon Direct costs required to produce and deliver the products or services sold. It is needed to assess efficiency in production and service delivery.

Total Operating Expenses (Operating Cost)

Information icon Indirect costs of running the business such as salaries, marketing, and administration. It is needed to understand how much it costs to sustain ongoing business operations.

Income Tax Expense (Tax Drag)

Information icon Amount of taxes paid or payable to the government. It is needed to evaluate the impact of taxation on overall profitability.

Form CRS provides a relationship summary of our automated advisory services, flat subscription fees, and conflicts of interest. Form ADV Part 2A brochure contains complete details on services, billing, and disclosures. If any summary differs from our current regulatory filings, the filed Form ADV controls.