TotalMarketCap

Protagonist Therapeutics

PTGXNasdaq United StatesHealth CareBiotechnology: Pharmaceutical Preparations

Market cap

$8.756 B

$135.31 -5.62%

Close of 6 Nov 2026

As of 6 Nov 2026, Protagonist Therapeutics (PTGX) has a market capitalization of $8.76B. Market cap measures the value of outstanding equity at market prices; company totals combine applicable share classes. Prices and market caps come from Nasdaq, with financial fundamentals from SEC filings. See sources and calculation details.

Revenue

—

Not reported

Earnings

-$130.1M

Loss-making

Shares outstanding

65,270,114

Latest filing cover page

P/E ratio

—

Cap ÷ net income

Biotechnology: Pharmaceutical Preparations, ranked by market cap

All 498 →
  1. #34Spyre TherapeuticsSYRE$9.21B
  2. #35Tg TherapeuticsTGTX$8.87B
  3. #36Protagonist TherapeuticsPTGX$8.76B
  4. #37Arrowhead PharmaceuticalsARWR$8.11B
  5. #38Corcept TherapeuticsCORT$7.86B

What if Protagonist Therapeutics were worth as much as…

Open the what-if tool →

Gold $28.2T

$436,371.85

Per share 3,225× higher

Bitcoin $1.53T

$23,611.32

Per share 174× higher

Apple $5.02T

$77,513.76

Per share 573× higher

Or at a round number

$20.0B$50.0B$100.0B$200.0B

Where these numbers come from

Share counts and financials for Protagonist Therapeutics are taken from its own SEC filings via EDGAR: public record, not an estimate. Market cap is shares outstanding multiplied by the latest close. Read the methodology.