Protagonist Therapeutics, Inc.

PTGX·NasdaqGM·Healthcare
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143.37+3.13 (+2.23%)today
At close: Nov 4, 4:00 PM EST · May be delayed up to 15 min · USD
Pre-market144.25+0.88 (+0.61%)

Prices may be delayed up to 15 min. Not investment advice. News volume: articles in the 4Search index each day.

Key statistics

Previous close140.24
Open145.61
Day range138.62145.61
52-week range75.55160.81
Off day high−1.54%
Off 52-week high−10.85%
Volume713.42K
Avg. volume (3M)646.20K
Market cap9.28B
EPS (TTM)1.03
Forward P/E-1,444.39
P/E ratio (TTM)139.19
Dividend yield—
Beta (5Y)1.22
Shares outstanding64.71M
Short interest18.49% of float
Earnings dateAug 5, 2026 (est.)
Analyst target178.57
Profit margin29.40%

Against its peers

Compare in full ›
PTGX ROIV 688177.SS 688382.SS IOVA 8SJ.F
Market cap 9.28B 27.61B 7.38B 8.38B 3.94B 1.84B
P/E (TTM) 139.2 — — — — —
Forward P/E -1,444.4 -27.5 -26.2 -43.8 -44.4 —
Price/book 11.0 6.5 171.3 6.6 5.4 2.4
Dividend yield — — — — — —
1-year change +80.07% +85.85% −34.43% −48.70% +276.62% −37.59%
Today +2.23% +6.08% +2.95% +4.33% −1.47% +1.70%

The closest companies by business and industry (Biotechnology). Prices may be delayed up to 15 min.

Related companies

Compare ›

The businesses closest to Protagonist Therapeutics's by what they do, from their descriptions, with the same industry weighted in.

Company Mkt cap Price Today
Roivant Sciences Ltd.ROIV · Biotechnology 27.61B 38.23 +6.08%
Bio-Thera Solutions, Ltd.688177.SS · Biotechnology 7.38B 17.82 +2.95%
InventisBio Co., Limited688382.SS · Biotechnology 8.38B 14.45 +4.33%
Iovance Biotherapeutics, Inc.IOVA · Biotechnology 3.94B 8.70 −1.47%
Shanghai Junshi Biosciences Co., Ltd.8SJ.F · Biotechnology 1.84B 1.7900 +1.70%
Ligand Pharmaceuticals IncorporatedLGND · Biotechnology 6.32B 316.13 +0.83%
BioNTech SE0A3M.IL · Biotechnology 25.17B 91.50 +2.81%
Innovent Biologics, Inc.6IB.F · Biotechnology 17.27B 9.91 +3.42%

Also based in Newark, California, then elsewhere in California.

Company Mkt cap Price Today
Lucid Group, Inc.LCID · Newark, CAOdds 1.33B 3.3700 +11.59%
Concentrix CorporationCNXC · Newark, CA 1.89B 30.93 +6.69%
NVIDIA CorporationNVDA · Santa Clara, CAOdds 4.83T 200.13 −3.17%
Apple Inc.AAPL · Cupertino, CAOdds 5.08T 349.51 +5.31%
Meta Platforms, Inc.META.BA · Menlo Park, CA 112.71T 44,080.00 +1.99%
Broadcom Inc.AVGOCL.SN · Palo Alto, CA 1,519.49T 318,310.00 0.00%
The Walt Disney CompanyDISN.BA · Burbank, CA 228.48T 16,540.00 +4.16%
Advanced Micro Devices, Inc.AMD.BA · Santa Clara, CA 133.29T 81,650.00 +0.71%

The stocks whose daily moves over the past year went most closely with Protagonist Therapeutics's: the correlation of their daily returns, where 1 would be moving as one.

Company Mkt cap Price Today
Vaxcyte, Inc.PCVX · Correlation 0.45 10.34B 65.68 +8.01%
Syndax Pharmaceuticals, Inc.SNDX · Correlation 0.41 940.80M 10.45 −26.87%
Rhythm Pharmaceuticals, Inc.RYTM · Correlation 0.41 7.67B 110.68 +28.04%
Roivant Sciences Ltd.ROIV · Correlation 0.40 27.61B 38.23 +6.08%
Krystal Biotech, Inc.KRYS · Correlation 0.38 9.21B 310.84 +1.90%
Xenon Pharmaceuticals Inc.XENE · Correlation 0.38 3.80B 39.19 +2.51%
Spyre Therapeutics, Inc.SYRE · Correlation 0.37 9.26B 99.04 −0.23%
Kymera Therapeutics, Inc.KYMR · Correlation 0.37 11.63B 136.25 +7.21%

What visitors to Protagonist Therapeutics's page also look at.

Company Mkt cap Price Today
Syndax Pharmaceuticals, Inc.SNDX 940.80M 10.45 −26.87%
Rhythm Pharmaceuticals, Inc.RYTM 7.67B 110.68 +28.04%
Kymera Therapeutics, Inc.KYMR 11.63B 136.25 +7.21%
Xenon Pharmaceuticals Inc.XENE 3.80B 39.19 +2.51%
Mirum Pharmaceuticals, Inc.MIRM 6.30B 96.97 +11.42%

From the 4SEARCH.business instruments index: what each company does (its business description), its industry, size, headquarters and the markets it serves; and from a year of daily prices, which move together. Prices may be delayed up to 20 min.

Latest news

All PTGX news ›
Markets Daily··2 outletsNegative

Protagonist Therapeutics (NASDAQ:PTGX) Stock Gets Downgrade from Wall Street Zen

Posted by Kim Johansen on Oct 12th, 2026 Protagonist Therapeutics (NASDAQ:PTGX – Get Free Report) was downgraded by equities research analysts at Wall Street Zen from a “strong-buy” rating to a “buy” rating in a report issued on Saturday,…

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More from 1 other outlet

From the 4Search news index, newest first.

In the news

10mentions in 30 days
10with it in the headline
Positivesentiment

Mentioned with

Bank of America5Bmo Capital Markets5Btig Research5HC Wainwright5Perspective Therapeutics5Wall Street Zen5Eli Lilly and Company4Johnson & Johnson4

People in the coverage

Danessa Lincoln9Marketbeat9Michael Walen9Sarita Garza9Kim Johansen8Mitch Edgeman8

Themes

Healthcare10EPS6Analyst Recommendations4Comparison4Dividends4Earnings4Institutional Ownership4Profitability4

Most coverage from

  1. defenseworld.net3
  2. themarketsdaily.com3
  3. marketbeat.com2
  4. seekingalpha.com1
  5. tradingview.com1

Finance and business coverage in the 4SEARCH.business news index: articles that name it in the headline, or in the text beside its ticker. Sentiment is the index's own reading of the latest 10 articles, not a forecast.

Market data is provided for information only and comes from free public sources. Prices may be delayed up to 15 minutes; data may be incomplete or inaccurate. Nothing on this page is investment advice or a recommendation to buy or sell any security. News and coverage analytics are drawn from the 4SEARCH.business index. Terms of use. How to use Finance