PTGX

$98.87-2.81 (-2.76%)

Market ClosedAs of Mar 20, 8:00 PM UTC

Protagonist Therapeutics, Inc., a biopharmaceutical company, develops peptide therapeutics for hematology and blood disorders, and inflammatory and immunomodulatory diseases.

Historical Price

Price (Line)
50-Day SMA
200-Day SMA
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Peer Comparison

JNJUNHPFE

Whystock Valuation Model

Calculated using a trailing P/E relative model adjusted by sector ROE and historical growth.
Current Price$98.87
Potential Upside
5%
Whystock Fair Value$103.81
Price
UndervaluedFair ValueOvervalued

Fundamentals

SectorHealthcare
IndustryBiotechnology

Protagonist Therapeutics, Inc., a biopharmaceutical company, develops peptide therapeutics for hematology and blood disorders, and inflammatory and immunomodulatory diseases. It is developing Rusfertide, an injectable mimetic of hepcidin that is in p...

Market Cap
Total dollar market value of a company's outstanding shares of stock (Price * Shares).
$6.31B
P/E Ratio
Priced for growth. Investors expect sustained double-digit expansion.
-
Beta
High-beta play. Expect amplified moves vs. the broad market.
2.24
Div Yield
Low to zero yield. Return is entirely dependent on price appreciation.
0.00%
ROIC
Average efficiency. Growth may require heavy reinvestment.
-21.17%
Quick Ratio
Pristine liquidity. Sufficient cash to cover all near-term obligations.
12.71

Recent News

Motley Fool
Mar 20, 2026

This Specialized Heart Monitor Maker Just Caught the Eye of a Major Healthcare Fund

RTW Investments loads up on iRhythm Holdings with 1.18M Shares Worth $210 million. iRhythm delivers wearable cardiac monitoring and analytics solutions to healthcare providers and at-risk patients.

BULLISH
Positive press. Headlines skewed toward growth and analyst upgrades.
Zacks
Mar 20, 2026

Protagonist Therapeutics Stock Rallies Nearly 7% in a Week: Here's Why

PTGX stock jumps as JNJ wins FDA nod for Icotyde in plaque psoriasis, unlocking milestone payments and royalty potential for Protagonist.

BULLISH
Positive press. Headlines skewed toward growth and analyst upgrades.
Simply Wall St.
Mar 20, 2026

A Look At Protagonist Therapeutics (PTGX) Valuation After FDA Approval Of ICOTYDE

FDA approval sets new context for Protagonist Therapeutics The recent U.S. FDA approval of ICOTYDE for moderate to severe plaque psoriasis puts Protagonist Therapeutics (PTGX) in a new phase. Attention is now shifting toward how this therapy might influence revenue, costs, and future development priorities. See our latest analysis for Protagonist Therapeutics. The FDA approval has arrived after a strong run in the shares, with a 23.31% 1 month share price return and a 91.67% 1 year total...

BULLISH
Positive press. Headlines skewed toward growth and analyst upgrades.
Zacks
Mar 20, 2026

Protagonist Therapeutics (PTGX) Soars 4.7%: Is Further Upside Left in the Stock?

Protagonist Therapeutics (PTGX) saw its shares surge in the last session with trading volume being higher than average. The latest trend in earnings estimate revisions could translate into further price increase in the near term.

BULLISH
Positive press. Headlines skewed toward growth and analyst upgrades.
Simply Wall St.
Mar 20, 2026

Why Protagonist Therapeutics (PTGX) Is Up 6.6% After First Psoriasis Drug Wins FDA Approval And What's Next

Protagonist Therapeutics recently received U.S. FDA approval for ICOTYDE (icotrokinra) to treat adults with moderate to severe plaque psoriasis, and held a special call on March 18, 2026 to discuss the decision. This first approval for ICOTYDE marks a key transition for Protagonist Therapeutics from a primarily development-stage biotech toward commercializing its own psoriasis therapy. We’ll now examine how ICOTYDE’s FDA approval for moderate to severe plaque psoriasis could reshape...

BULLISH
Positive press. Headlines skewed toward growth and analyst upgrades.