PTGX — Stock Film
STOCK FILMSCENE 1/10PTGX · $148
Stock Expert AI presents
PTGX
Protagonist Therapeutics, Inc
~5 min film100% real numbersplain English
WHAT DOES THIS COMPANY DO?
Protagonist Therapeutics, Inc. What it actually does.

Develops peptide-based therapeutic drugs targeting hematology and blood disorders. Now — the numbers.

on the stock market since 2016
141 employees
$9.5B market value
Revenue last year:
$46M
The loss that same year:
$130.1M
For every $1 it earns, the company spends $4.

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 overall, with a pause along the way.

Average growth of 14% a year over the last 4 years. Red columns mark years that ended in a loss.

$27.4M
2021
2022
2023
2024
$46M
2025
In the vault right now:
$567.4M
DEBT: $10.3M
At this pace, that money lasts about 4.4 years.

At this burn rate the cash pile isn’t the pressing question — for now, time is on the company’s side.

INSIDE THE REPORT CARD

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

A score of 50 means class average.

BUSINESS QUALITY
92
very strong

Profit power and business quality lead the class.

FINANCIAL STRENGTH
98
very strong

Debt is low and cash is strong; the finances stand solid.

VALUATION
33
very weak

Clearly below the class average.

GROWTH
4
very weak

Clearly below the class average.

PRICE MOMENTUM
92
very strong

The stock has been running stronger than the market lately.

WORTH WATCHING

Growth: Sales growth trails the sector average.

Valuation: The stock trades at a price that looks expensive next to its earnings; that can cap future returns.

THE FIVE-YEAR JOURNEY
Bumpy, but the direction is up.

The stock trades near its peak today. For long-term holders the ride has paid off so far — though past performance guarantees nothing about the future.

1
THE BRIGHT SIDE · 1/2
The product is selling

Sales run at $46.0M a year. A small number, but proof the product has real buyers.

2
THE BRIGHT SIDE · 2/2
Strong cash, light debt

There is $567.4M in the vault; even if every debt were paid off, $557.0M would remain.

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

A loss of $130.1M against $46.0M in annual sales. And on top of that, sales fell from the year before.

2
THE RISKS · 2/3
Growth trails the sector

The growth engine is running at low revs right now. Report-card grade: 4/100.

3
THE RISKS · 3/3
The price runs ahead of the earnings

Today’s price already includes part of tomorrow’s optimism. Report-card grade: 33/100.

FINALE · THE GRADE
A
77 / 100 · MoonshotScore

On our five-subject report card, PTGX sits in the middle of the class: some subjects shine, others don’t. The grade moves as the numbers move.

The takeaway: PTGX 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.

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