How to Buy Protagonist Therapeutics Stock

Protagonist Therapeutics Inc

Protagonist Therapeutics, Inc. , a biopharmaceutical company, discovers and develops peptide-based therapeutic drugs to address hematology and blood disorders, and inflammatory and immunomodulatory diseases.

Protagonist Therapeutics stock last closed at $56.37, up 0.09% from the previous day, and has increased 64.1% in one year. It has overperformed other stocks in the Biotechnology industry by 1.4 percentage points. Protagonist Therapeutics stock is currently +83.78% from its 52-week low of $30.67, and -6.98% from its 52-week high of $60.60.

There are currently 61.98M PTGX shares outstanding. The market value of PTGX is $3.49B. In the last 24 hours, 988,000 PTGX shares were traded.

How to Buy Protagonist Therapeutics Stock

Not sure how to invest in Protagonist Therapeutics stock? Here's how.

  1. Figure out where to buy Protagonist Therapeutics stock: You need to pick a stock brokerage, but don't worry - we've sifted through dozens of online stock brokerages and apps to help you decide where to buy Protagonist Therapeutics stock.
  2. Open your brokerage account: Sign up for 0% fee trading with the highest-rated brokerage we've identified.
  3. Put funds into your investment account: Select your method of payment and add your info.
  4. Analyze Protagonist Therapeutics stock: The Protagonist Therapeutics ticker symbol is PTGX. Is Protagonist Therapeutics stock a good investment? Should you buy shares of PTGX? How do PTGX's underlying business fundamentals look? Do top analysts think Protagonist Therapeutics is a good buy? Why has PTGX's stock price moved recently? (Hint: Our stock market analysis tools can help you evaluate if PTGX is a good stock to buy).
  5. Make your PTGX buy order: Decide if you will purchase PTGX shares at the current market price or use a limit order to purchase PTGX stock at a given price.
  6. Keep an eye on your PTGX investment: Create a watchlist to monitor your investment in Protagonist Therapeutics stock.

Step 1: Figure out where to buy Protagonist Therapeutics stock

You will need an online brokerage account to access the NASDAQ market and buy PTGX stock.

A brokerage account is an investment account that enables you to buy and sell a number of investments, such as stocks, bonds, mutual funds, and ETFs.

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Step 2: Open your brokerage account

Now that you've selected the best brokerage, you'll need to fill out some personal details so you can invest in PTGX stock today.

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Step 3: Put funds into your investment account

Now that you've finished signing up on investing apps, you can securely and quickly fund your account:

Watch the video below for more details depositing money into your new brokerage account.

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Step 4: Analyze Protagonist Therapeutics stock

After you have selected the best place to buy Protagonist Therapeutics stock, it's absolutely critical to research their stock prior to investing, so you truly wrap your head around the risk as well as the opportunity.

Protagonist Therapeutics stock data

PTGX Price
$56.37
1w %
3.66%
1y %
64.1%
5y %
250.12%
P/E
62.63x
P/B
5.07x
P/S
17.08x
PEG
N/A
Revenue
$207.80M
Earnings
$56.19M
Fore. Rev. Growth
-12.02%
Fore. Earn. Growth
N/A
Market Cap
$3.49B
Next Earnings
N/A
Next Dividend
N/A

Fundamentals of Protagonist Therapeutics

WallStreetZen was built to help average investors do more accurate fundamental analysis quickly.

You can view all of the due diligence checks on PTGX's stock page.

Is PTGX stock undervalued?

Analysts use many financial metrics, analyses, models, and charts to gauge PTGX's fair value.

Using relative valuations metrics:

  • PTGX could be undervalued based on its P/E ratio of 62.63x, relative to Biotechnology industry P/E ratio of -108.97x
  • PTGX could be overvalued based on its P/B ratio of 5.07x, relative to Biotechnology industry P/B ratio of 4.66x

You can do more valuation analysis on PTGX's stock here.

A quick look at PTGX Financials

Signs that PTGX is financially healthy:

  • PTGX earnings of $57.09M is not enough to cover its interest payments.
  • There are more short-term assets than short-term liabilities on the PTGX balance sheet.
  • PTGX has a low debt to equity ratio of 0.08.
  • Total PTGX debt is lower than 5 years ago, relative to shareholder equity.
  • PTGX's operating cash flow of $336.94M allows it to safely service it's debt of $11.36M.
  • There are more short-term assets than long-term liabilities on the PTGX balance sheet.

Signs that PTGX is not financially healthy:

  • PTGX profit margin has gone down from 51.5% to 27% in the past year.

Is Protagonist Therapeutics stock a Buy, Hold, or Sell, according to analysts?

Out of 6 Wall Street analysts who give recommendations on PTGX, the consensus analyst rating on PTGX is a Strong Buy

Please keep in mind that analyst forecasts are not stock recommendations, nor are they financial advice.

Most Recent PTGX Analyst Forecasts

Brian Cheng, a bottom 6% analyst from JP Morgan maintains PTGX with a strong buy rating and raises their PTGX price target from $53.00 to $57.00, on Mar 4, 2025.

An analyst from Goldman Sachs maintains PTGX with a hold rating and lowers their PTGX price target from $43.00 to $38.00, on Feb 24, 2025.

You can dig deeper into what analysts are projecting on the Protagonist Therapeutics stock forecast page.

PTGX Technical Indicators

SMA10
54.1
SMA20
50.12
SMA50
46.71
SMA100
44.92
SMA200
44.01
MACD
2.93
MACD Signal
2.19
MACD Histogram
0.74
RSI
75.11
Stochastic %K
86.5
Stochastic %D
87.7
StochRSI %K
83.11
StochRSI %D
87.92

PTGX Earnings

Last year, PTGX earnings were $56.19M. In the past one years, PTGX's earnings have grown by -66.29% per year. This was slower than the Biotechnology industry average of 8.66%.

Last year, PTGX revenue was $207.80M. During the last 5 year, PTGX's revenue has gone up by 145.76% per year. This was faster than the Biotechnology industry average of 43.24%.

Dive into PTGX's earnings and revenue performance here.

What are PTGX insiders up to?

Over the last year, insiders at PTGX have bought more shares than they have sold.

Arturo Md Molina, Chief Medical Officer of PTGX, was the latest PTGX insider to buy. They bought $80,400.00 worth of PTGX shares on Jun 10, 2025.

Learn more about who owns PTGX stock here.

Does PTGX provide a stable income stream?

No, Protagonist Therapeutics doesn't provide an income stream by paying out dividends.

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Step 5: Make your PTGX buy order

You have two main options:

  • Market order: A market order is an order to buy or sell a security at the best price on the market.
    Market orders are usually sufficient.
  • Limit order: A limit order lets you buy or sell a stock at a specific price (or better).
    If you want to be certain you're buying or selling at a specific dollar amount, use a limit order.

Press the Open Trade button and your broker will place the order.

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Step 6: Keep an eye on your PTGX investment

Now that you own some PTGX shares, you'll want to keep up with your new investment.

Create a watchlist to track your PTGX stock.

PTGX Feed

How to Buy Stock in Protagonist Therapeutics

To summarize, here are the 6 steps for buying Protagonist Therapeutics stock:

  1. Figure out where to buy Protagonist Therapeutics stock
  2. Open your brokerage account
  3. Put funds into your investment account
  4. Analyze Protagonist Therapeutics stock
  5. Make your PTGX buy order
  6. Keep an eye on your PTGX investment

If you are looking for a online brokerage, eToro is our favorite venue.

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If you want to keep track of your investment in Protagonist Therapeutics, click below.

NASDAQ: PTGX
$56.37+0.05 (+0.09%)
Updated Jun 13, 2025
Open eToro Account
Your capital is at risk.
NASDAQ: PTGX
$56.37+0.05 (+0.09%)
Updated Jun 13, 2025
Open eToro Account
Your capital is at risk.

FAQ

How much does it cost to buy one Protagonist Therapeutics share?

As of Jun 13, 2025, it costs $56.37 to buy one share of Protagonist Therapeutics stock.

Remember, eToro's fractional share buying allows you to buy partial shares of stocks and ETFs. Even if you only have $10, you can buy 0.177 shares of PTGX.

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eToro is a multi-asset investment platform. The value of your investments may go up or down. Your capital is at risk.

Is now a good time to buy Protagonist Therapeutics stock?

According to 6 Wall Street analysts who monitor Protagonist Therapeutics, their consensus recommendation is to buy Protagonist Therapeutics stock.

What is the best way to buy Protagonist Therapeutics stock?

One way to place an order for Protagonist Therapeutics stock is with a brokerage account.
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.