1. MARKETS
  2. SECTOR : PHARMACEUTICALS & BIOTECHNOLOGY
  3. INDUSTRY : BIOTECH
  4. PROTAGONIST THERAPEUTICS INC
Protagonist Therapeutics Inc XNAS: PTGX
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55.22 0.78 (1.43%)
80.05% Gain from 52W Low
824.7K
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XNAS 26 Jun, 2025 5:30 PM (EDT)

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Analyze undervaluation/ overvaluation of Protagonist Therapeutics Inc with current and 1 Year Forward PE

INSIGHT
Protagonist Therapeutics Inc is overvalued at current PE, but fairly valued on future earnings estimates
Right Now : Current PE vs 5 year Average PE
Overvalued
Fair price

Based on 5Yr Average PE

22.5
Upside

Current PE versus 5Yr Average PE

-59.19 %
1 Year Forward : 5 Yr Average PE & Projected 1Yr Forward EPS*
Overvalued
Fair price

Based on 1Yr Forward EPS

-43.7
Upside

5 Yr Average PE & 1Yr Forward EPS

-179.22 %
Info: The Protagonist Therapeutics Inc's current PE is 60.91 ,while its 5 year PE average is 24.9. Its forward PE based on analyst estimates is -31.4
Note: The forward P/E ratio (or forward price-to-earnings ratio) is calculated by dividing the current share price of a company by the estimated(1Yr) future (“forward”) earnings per share (EPS) of that company.
generated report

Analyze undervaluation/ overvaluation of Protagonist Therapeutics Inc with historical PE and PBV ratios

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from 27 Jun, 2023 to 26 Jun, 2025

Restated P/E

Strong Sell Zone

98.2% into P/E buy sell zone

% time spent below current P/E
0 20 40 60 80 100
Strong upside potential
Gains already realized

Out of 284 days, Protagonist Therapeutics Inc traded 279 (98.2%) days below the current P/E of on Restated basis.

Originally Reported P/E

Strong Sell Zone

98.3% into P/E buy sell zone

% time spent below current P/E
0 20 40 60 80 100
Strong upside potential
Gains already realized

Out of 299 days, Protagonist Therapeutics Inc traded 294 (98.3%) days below the current P/E of on Originally Reported basis.

Note: This is a reverse percentile score. Values close to 100% are bad while values close to 0% are good. Days when PE is negative are not considered in the analysis
98.3%

Strong Sell Zone

% Days traded below current P/E

60.9
 

Current P/E

18.1
 

Average P/E

14.0
 

Median P/E

-43.7
 

Forward 1Y Price

-31.4
 

Forward PE

-1.8
 

Forward EPS

P/E range Days traded in range % Days traded in range Days traded within & below range % Days traded within & below range
7-10
 33 11.0% 33 11.0%
10-11
 27 9.0% 60 20.1%
11-14
 90 30.1% 150 50.2%
14-16
 65 21.7% 215 71.9%
16-17
 34 11.4% 249 83.3%
17-49
 23 7.7% 272 91.0%
49-63
Current P/E is 60.9 		27 9.0% 299 100.0%
Total 299 299
98.2%

Strong Sell Zone

% Days traded below current P/E

60.9
 

Current P/E

18.6
 

Average P/E

14.1
 

Median P/E

-43.7
 

Forward 1Y Price

-31.4
 

Forward PE

-1.8
 

Forward EPS

P/E range Days traded in range % Days traded in range Days traded within & below range % Days traded within & below range
7-10
 22 7.7% 22 7.7%
10-11
 23 8.1% 45 15.8%
11-12
 17 6.0% 62 21.8%
12-14
 73 25.7% 135 47.5%
14-15
 37 13.0% 172 60.6%
15-16
 28 9.9% 200 70.4%
16-17
 34 12.0% 234 82.4%
17-49
 23 8.1% 257 90.5%
49-63
Current P/E is 60.9 		27 9.5% 284 100.0%
Total 284 284

FAQ

  • What is the PE ratio?

    In its simplest definition, the price-to-earnings ratio (P/E ratio) represents the price an investor pays per dollar of a company's earnings.
    For example, if a company has a P/E ratio of 25, investors are willing to pay USD 25 for each dollar of the company's current earnings. This indicates that investors value the stock at 25 times its current earnings, with an expectation of future earnings growth.
    The P/E ratio fluctuates based on investor sentiment towards a company. Positive sentiment drives the stock price higher, resulting in a higher P/E ratio (investors pay more for each dollar of earnings). Conversely, negative sentiment lowers the P/E ratio (investors pay less for each dollar of earnings).

  • What is the PE buy/sell zone?

    The PE buy/sell zone is calculated based on how many days a stock has traded at its current PE level.
    To do this, we compare the current PE to the stock’s historical PE performance, to find out how often (for how many days in the past) the stock has traded at its current PE value.
    If the stock has usually traded above its current PE level (it’s at a higher PE for the majority of trading days), then the stock is cheaper than usual and in the PE buy zone.
    If the stock has usually traded below its current PE level (it’s at a lower PE for the majority of trading days), then the stock is more expensive than usual and in the PE sell zone.

  • How is the PE buy sell zone useful?

    The PE buy sell zone tells you if a stock’s current PE level is unusually high or low, and if a stock doesn’t typically trade at that level. It helps investors identify stocks that are undervalued or overvalued in terms of their typical PE trading behavior.
    Investors should keep in mind that the buy zone/sell zone is not a foolproof buy or sell signal. For example, the PE of a stock may have fallen substantially due to adverse events or negative news. Or the PE may have risen sharply after the company has won new orders, made an acquisition, announced a buyback, or some other positive event. PE Buy/Sell Zone signals should be looked at in conjunction with other information.

  • Why are the number of days different for Restated and Originally Reported data?

    This can be because of any of the 2 following reasons:
    1. Days when PE is negative are not considered in the analysis. So if only 1 of the Restated or Originally Reported PE is negative and the other is not, then the days will be different
    2. Companies have reported Originally Reported data for limited period.
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