PTGX (Protagonist Therapeutics) Tax Expense: $-0.66 Mil (TTM As of Mar. 2026)


PTGX Protagonist Therapeutics Inc PTGX
51 GF Score
Price $140.91
GF Value $61.27
Valuation Significantly Overvalued
! 7 Warning Signs
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What is Protagonist Therapeutics Tax Expense?

Protagonist Therapeutics PTGX +7.11% 51 Tax Expense is $-0.66 Mil as of Mar. 2026. GuruFocus rates PTGX with a GF Score™ of 51/100 and a GF Value™ of $61.27 (Significantly Overvalued). The stock has 7 warning signs investors should review.

Protagonist Therapeutics's tax expense for the months ended in Mar. 2026 was $-1.50 Mil. Its tax expense for the trailing twelve months (TTM) ended in Mar. 2026 was $-0.66 Mil.


Protagonist Therapeutics  (NAS:PTGX) Tax Expense Explanation

In the long run, income before tax and taxable income will likely be more similar than they are in any given period. If the one is less in earlier years, then it will be greater in later years. Deferred taxes will reverse themselves in the long run and in total will zero out, unless there is something like a change in tax rates in the intervening period. A deferred tax payable results from a tax break in the early years and will reverse itself in later years; a deferred tax receivable results from more taxes being paid in early years than the tax expense reported to shareholders and will again reverse itself in later years. The deferred tax amount is computed by estimating the amount and the timing of the reversal and multiplying that by the appropriate tax rates.


Protagonist Therapeutics Tax Expense Related Terms


Protagonist Therapeutics Tax Expense Historical Data

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The historical data trend for Protagonist Therapeutics's Tax Expense can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Protagonist Therapeutics Tax Expense Chart

Protagonist Therapeutics Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Tax Expense
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 4.22 0.84

Protagonist Therapeutics Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Tax Expense Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 0.00 0.17 0.00 0.67 -1.50
PTGX
51GF Score
Protagonist Therapeutics Inc PTGX
Tax Expense is just one metric. See GF Score™, valuation, warning signs, and more.
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Protagonist Therapeutics Tax Expense Calculation

Tax paid by the company. It is computed in by multiplying the income before tax number, as reported to shareholders, by the appropriate tax rate. In reality, the computation is typically considerably more complex due to things such as expenses considered not deductible by taxing authorities ("add backs"), the range of tax rates applicable to various levels of income, different tax rates in different jurisdictions, multiple layers of tax on income, and other issues.

Tax Expense for the trailing twelve months (TTM) ended in Mar. 2026 adds up the quarterly data reported by the company within the most recent 12 months, which was $-0.66 Mil.

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Frequently Asked Questions Learn more about Tax Expense →
What does a Tax Expense of $-0.66 Mil mean?
Protagonist Therapeutics (PTGX) has a Tax Expense of $-0.66 Mil as of Mar. 2026. Tax expense is the amount of tax the company pays in an accounting period. View historical data on Protagonist Therapeutics and its competitors.
Is Protagonist Therapeutics' Tax Expense too high?
Protagonist Therapeutics' current Tax Expense is $-0.66 Mil. Overall, Protagonist Therapeutics has a GF Score™ of 51/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Protagonist Therapeutics' Tax Expense compare to IMVT and SYRE?
Protagonist Therapeutics' Tax Expense of $-0.66 Mil can be compared against companies in the Biotechnology industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Tax Expense for a Biotechnology company?
A good Tax Expense depends on the Biotechnology industry context. However, Tax Expense should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Tax Expense mean?
A high Tax Expense can signal that a stock is expensive relative to its fundamentals. Tax expense is the amount of tax the company pays in an accounting period. View historical data on Protagonist Therapeutics and its competitors. Protagonist Therapeutics's current Tax Expense is $-0.66 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Protagonist Therapeutics stock overvalued right now?
Based on GuruFocus' analysis, Protagonist Therapeutics (PTGX) is currently considered Significantly Overvalued. The stock's GF Value™ is $61.27, compared to a current price of $140.91 — trading 130% above its estimated fair value. The current Tax Expense is $-0.66 Mil. Protagonist Therapeutics' overall GF Score™ is 51/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Tax Expense calculated?
Tax Expense is calculated from a company's financial statements. For Protagonist Therapeutics (PTGX), the current Tax Expense is $-0.66 Mil as of Mar. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is Protagonist Therapeutics (PTGX) Overvalued in 2026?

Based on GuruFocus' analysis, Protagonist Therapeutics stock appears to be overvalued. The current stock price of $140.91 is trading 130% above its estimated GF Value™ of $61.27. GuruFocus considers Protagonist Therapeutics to be Significantly Overvalued.

Key valuation signals for PTGX:

  • Tax Expense: $-0.66 Mil
  • GF Value™: $61.27 vs. price of $140.91 (130% above fair value)
  • GF Score™: 51/100 with 7 warning signs

No single metric tells the full story. See the PTGX stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Protagonist Therapeutics Business Description

Address 7707 Gateway Boulevard, Suite 140, Newark, CA, USA, 94560
Protagonist Therapeutics Inc is a biopharmaceutical company engaged in the discovery and development of peptide-based therapeutics using its proprietary technology platform. The company focuses on three therapeutic areas: inflammation and immunology, hematology, and metabolic diseases. Its pipeline includes clinical-stage and preclinical candidates such as rusfertide for polycythemia vera, icotrokinra for inflammatory diseases, and other programs targeting IL-17, obesity, and iron metabolism disorders, developed through internal research and strategic collaborations.
51GF Score

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$140.91
Price
$61.27
GF Value