LUNG

We rate Pulmonx Corp (LUNG) as Avoid with a composite score of 28.7/100 at a current price of $1.51. The stock falls in the bottom quintile of our universe across key quantitative factors, and the multi-factor weakness suggests a high probability of continued underperformance.

The rating is primarily driven by strength in stability (41th percentile) and quality (40th percentile), which together account for the majority of the composite score. Offsetting weakness in value (10th percentile) and momentum (16th percentile) tempers our overall conviction. We assign a No Moat rating (34/100), High uncertainty, and Poor capital allocation.

Key items to watch: momentum to confirm whether the current price trend has legs; the path to profitability; valuation compression risk if growth disappoints. Any material change in these dynamics could warrant a reassessment of our rating. The moat trend is stable, which suggests the competitive landscape is stable for now.

Pulmonx Corp holds a top-quartile position (#0 of 50) within the Manufacturing sector, based on our composite quantitative scoring across quality, value, momentum, and stability factors. The composite score of 28.7/100 places it at rank #4610 in our full 7,333-stock universe. At $66M in market capitalization, Pulmonx Corp is a small-cap player in the Manufacturing space, which limits certain scale advantages but may allow for more agile strategic execution.

Revenue is growing at 3%, though momentum at the 16th percentile suggests the market has not yet fully recognized this trajectory. This potential disconnect between fundamental improvement and market recognition could represent an opportunity for patient investors if the growth trend persists.

The margin cascade tells an important story: gross margins of 73% (+30.7pp vs sector) narrow to operating margins of -66% (-67.0pp vs sector) and net margins of -65.5%, yielding a gross-to-net conversion rate of -89%. The significant margin erosion from gross to net suggests elevated operating expenses, high interest costs, or other structural drags that warrant monitoring.

At a current price of $1.51, Pulmonx Corp is trading at a premium to fundamental value. Our value factor score of 10/100 reflects a composite assessment across multiple valuation metrics including price-to-earnings, price-to-book, EV/EBITDA, and price-to-sales ratios relative to both sector peers and the broader market. The premium valuation implies the market is pricing in significant future growth or quality improvements that are not yet fully reflected in current fundamentals.

The stock currently trades at P/B of 1.0x, P/S of 0.7x. We evaluate these multiples in the context of both absolute levels and sector-relative positioning to form our valuation view.

We assign a High uncertainty rating to Pulmonx Corp. Key risk factors include current negative profitability (net margin -65.5%), the combination of leverage (62% D/E) and thin margins (-65.5% net) amplifies downside risk. The wide range of potential outcomes widens our fair value estimate and increases the possibility of permanent capital impairment. Investors considering this name should size positions accordingly and demand a meaningful margin of safety before initiating.

Specific risk factors that inform our assessment include: current negative profitability (net margin -65.5%); the combination of leverage (62% D/E) and thin margins (-65.5% net) amplifies downside risk. Each of these factors independently widens the distribution of potential outcomes, and in combination they create a risk profile that demands careful position sizing. The stability factor at the 41th percentile and quality factor at the 40th percentile provide a quantitative summary of the overall risk landscape.

Key risk mitigants include: healthy gross margins of 73% provide a buffer against cost pressures. These factors partially offset the identified risks and provide downside protection in adverse scenarios. On balance, the risk-reward profile warrants caution and disciplined position management.

We rate Pulmonx Corp's capital allocation as Poor. Key concerns include low returns on equity (-96.2%), negative profitability, weak asset returns (ROA -41.7%). Exemplary capital allocators generate ROE above 20% and maintain conservative leverage — Pulmonx Corp significantly underperforms these benchmarks, raising questions about management's ability to create shareholder value.

Investors should scrutinize management's reinvestment decisions and balance sheet trajectory before committing capital. Poor capital allocation often compounds over time: overlevered balance sheets limit strategic flexibility, while low returns on capital destroy shareholder value. We would need to see sustained improvement in profitability metrics and balance sheet discipline before considering an upgrade.

In summary, Pulmonx Corp receives a Avoid rating with a composite score of 28.7/100 (rank #4610 of 7,333). Our quantitative framework assigns a No Moat (34/100, trend: stable), High uncertainty, and Poor capital allocation. The average factor score across quality, value, momentum, stability, and investment is 27/100.

Our analysis does not support a constructive view on Pulmonx Corp at this time. The combination of limited competitive advantages, high uncertainty, and poor capital allocation suggests unfavorable risk-reward at current levels. We recommend investors avoid new positions and existing holders consider reducing exposure.