Protagonist Therapeutics (PTGX) Market Cap 2016–2026

As of October 29, 2026, Protagonist Therapeutics had a market cap of $9.335 billion, which increased by 1.56% compared to the previous trading day. Market capitalization, often referred to as market cap, represents the total value of a company's outstanding shares on the stock market and is a common measure of its overall size and valuation.

Data updated: Oct 29, 2026, 4:00 PM ET
Protagonist Therapeutics logo

Protagonist Therapeutics, Inc. (PTGX)

🌍 United States 📈 NASDAQ 🏭 Health Care 🏢 Biotechnology
Latest Market Cap
$9.335B ▲ 1.56%
Start of 2026
$5.46B ▲ 70.97%
1 Year Ago
$4.867B ▲ 91.80%
All-Time High
$10.26B ▼ 9.02%


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Note: Each point on the chart represents the market capitalization at the end of the trading day.
Source: Data compiled from EDGAR filings, Bloomberg and Yahoo Finance.

📈 Protagonist Therapeutics Market Cap History by Year and Month

Protagonist Therapeutics Market Cap History by Year and Month
Year / MonthMarket Cap% Change
2026$9.335B▲ 70.97%
$9.335B▲ 2.45%
$9.112B▼ 4.64%
$9.555B▲ 8.88%
$8.776B▲ 11.47%
$7.873B▲ 22.96%
$6.403B▲ 1.39%
$6.315B▼ 6.10%
$6.725B▲ 16.83%
$5.756B▲ 12.55%
$5.114B▼ 6.34%
2025$5.46B▲ 131.75%
2024$2.356B▲ 78.08%
2023$1.323B▲ 146.37%
2022$0.537B▼ 67.18%
All market cap values reflect closing prices for the period shown.

📊 Protagonist Therapeutics Market Cap and Other Industry Peers

Below are selected companies from the Biotechnology sector / subsector:

  1. $14.96B
  2. $14.87B
  3. $13.81B
  4. $12.85B
  5. $11.13B
  6. $10.21B
  7. $10.15B
  8. $9.97B
  9. $9.61B
  10. $9.34B
  11. $9.07B
  12. $8.79B
  13. $8.54B
  14. $8.06B
  15. $7.35B
  16. $7.1B
  17. $6.41B
  18. $5.49B
  19. $5.37B
  20. $5.25B

Data reflect the most recent market capitalization values available.

Note: Market capitalization figures are based on available sources and may differ slightly from actual values, particularly for historical data.