LUNG — Stock Film
STOCK FILMSCENE 1/10LUNG · $1.85
Stock Expert AI presents
LUNG
Pulmonx Corporation
~5 min film100% real numbersplain English
WHAT DOES THIS COMPANY DO?
Pulmonx Corporation. What it actually does.

Develop minimally invasive medical devices for chronic obstructive pulmonary diseases. Offer the Zephyr Endobronchial Valve for treating severe emphysema. Now — the numbers.

on the stock market since 2020
296 employees
$78.1M market value
Revenue last year:
$90.5M
The loss that same year:
$54M
For every $1 it earns, the company spends $1.6.

The company is still in the product-building phase: its spending runs far above its sales. That only changes once the product starts selling at scale.

THE SALES TREND
Sales are growing, year after year.

Average growth of 17% a year over the last 4 years. Red columns mark years that ended in a loss.

$48.4M
2021
2022
2023
2024
$90.5M
2025
In the vault right now:
$70M
DEBT: $56.4M
At this pace, that money lasts about 1.3 years.

Before the clock runs out, either sales must climb sharply or new money must come in. This is the most critical line in the whole picture.

INSIDE THE REPORT CARD

We compared this company with its own sector across five subjects.

A score of 50 means class average.

BUSINESS QUALITY
33
very weak

Clearly below the class average.

FINANCIAL STRENGTH
19
very weak

Clearly below the class average.

VALUATION
54
average

The price isn’t cheap next to earnings — that’s why this grade sits in the middle.

GROWTH
53
average

There is growth, but not at top-of-the-class tempo.

PRICE MOMENTUM
67
strong

Clearly above the class average — a step short of the very top.

WORTH WATCHING

Financial Strength: The cash-and-debt balance is thin; the buffer for hard times is slim.

Business Quality: Profit power and business quality trail similar companies in the sector.

THE FIVE-YEAR JOURNEY
A long and steep decline.

An investor who bought at the very peak is down 96% today. The business is the same; what changed most is the price — and the expectations — the market pins on it.

1
THE BRIGHT SIDE · 1/3
Sales keep climbing

Over the last 4 years, sales grew about 17% a year on average.

2
THE BRIGHT SIDE · 2/3
The product is selling

Sales run at $90.5M a year. A small number, but proof the product has real buyers.

3
THE BRIGHT SIDE · 3/3
Delivers on expectations

It met or beat analyst expectations in 8 of the last 8 quarters — consistency is a promise kept.

1
THE RISKS · 1/3
Small sales, big loss

A loss of $54.0M against $90.5M in annual sales.

2
THE RISKS · 2/3
The cash has a countdown

At the current pace of spending, the cash lasts about 1.3 years. After that, the company needs to find new money.

3
THE RISKS · 3/3
Executives lean toward selling

Over the last 12 months, executives reported 40 sells against just 13 buys. Not an alarm bell by itself, but a number worth watching.

FINALE · THE GRADE
F
21 / 100 · MoonshotScore

On our five-subject report card, LUNG sits behind the class. A low grade doesn’t mean “doomed” — it means “big claim, small proof.”

The takeaway: LUNG is a high-risk stock — not yet profitable, and its future rides on its product catching on.

The total grade weighs these five subjects against the sector — it isn’t a simple average of the five.

Analysts’ average target sits above today’s price, yet the valuation grade (54/100) says the stock isn’t cheap.

What would you like to do next?
Open the stock page →

Not covered, because the filings we hold do not carry it: the revenue breakdown.

This was a film — not investment advice.
Data: FMP & company filings
Sep 11, 2026 · stockexpertai.com · Stock Film