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Protagonist Therapeutics, Inc. (PTGX)

Healthcare | Biotechnology | Newark, United States | NasdaqGM
129.89 USD -1.53 (-1.164%) ⇩ (July 13, 2026, 4 p.m. EDT)

Short-term:★★★★☆Long-term:★★★⯪☆Dividends:☆☆☆☆☆
Hot Take | July 11, 2026, 4:19 a.m. EDT

Protagonist Therapeutics is currently trading on a mix of strong momentum and speculative growth expectations. The stock has rallied significantly over the past eight years, outperforming the broader market, yet it remains unprofitable with negative earnings and a high price-to-sales ratio. The balance sheet is robust with substantial cash and negligible debt, which provides a safety net during the development phase. However, the valuation is stretched, and the lack of consistent profitability prevents a top-tier long-term rating. For the short term, technical indicators and options flow support a bullish case, but investors should remain cautious of the inherent risks associated with biotechnology development.

Model Selection — Backtest MAE (log-scale, lower is better)
ModelMAE
AutoTheta ✓0.074078
MSTL_1260.074301
AutoARIMA0.077480
AutoETS0.077630
MSTL0.077975
MSTL_900.098258
MSTL_90_1260.121151

Forecast horizon: 60 days | Selected: AutoTheta

Forecast Reliability
Score 23%
H-stat 9.47
Ljung-Box p 0.000
Jarque-Bera p 0.004
Excess Kurtosis 0.26
Attribute Value
Sector Healthcare
Debt to Equity Ratio 1.491
Revenue per Share 1.155
Market Cap 8,353,403,904
Forward P/E -205.25
Beta 1.79
Profit Margins -154.88%
Website https://www.protagonist-inc.com

As of July 11, 2026, 4:19 a.m. EDT: Implied volatility is elevated at the money, indicating heightened uncertainty. Call speculation is concentrated at strikes above the current price, with notable new volume entering at the 120, 135, and 140 levels, suggesting bets on further upside. Conversely, put writers are establishing significant protection at lower strikes, creating a floor around the 80 to 90 range.


Info Dump

Attribute Value
52 Week Change 1.379504
Address1 7,707 Gateway Boulevard
Address2 Suite 140
All Time High 141.1
All Time Low 4.47
Ask 160.97
Ask Size 2
Audit Risk 6
Average Analyst Rating 1.4 - Strong Buy
Average Daily Volume10 Day 1,074,560
Average Daily Volume3 Month 722,652
Average Volume 722,652
Average Volume10Days 1,074,560
Beta 1.791
Bid 92.34
Bid Size 2
Board Risk 7
Book Value 10.206
City Newark
Compensation As Of Epoch Date 1,767,139,200
Compensation Risk 8
Country United States
Crypto Tradeable 0
Currency USD
Current Price 129.89
Current Ratio 17.756
Custom Price Alert Confidence HIGH
Date Short Interest 1,782,777,600
Day High 131.36
Day Low 125.3225
Debt To Equity 1.491
Display Name Protagonist Therapeutics
Earnings Timestamp 1,778,011,200
Earnings Timestamp End 1,778,011,200
Earnings Timestamp Start 1,778,011,200
Ebitda -141,016,992
Ebitda Margins -1.90401
Enterprise To Ebitda -55.422
Enterprise To Revenue 105.524
Enterprise Value 7,815,394,304
Eps Current Year 4.18581
Eps Forward -0.63283
Eps Trailing Twelve Months -1.81
Esg Populated 0
Exchange NGM
Exchange Data Delayed By 0
Exchange Timezone Name America/New_York
Exchange Timezone Short Name EDT
Fifty Day Average 109.1736
Fifty Day Average Change 20.7164
Fifty Day Average Change Percent 0.1897565
Fifty Two Week Change Percent 137.9504
Fifty Two Week High 141.1
Fifty Two Week High Change -11.210007
Fifty Two Week High Change Percent -0.07944725
Fifty Two Week Low 50.485
Fifty Two Week Low Change 79.405
Fifty Two Week Low Change Percent 1.5728434
Fifty Two Week Range 50.485 - 141.1
Financial Currency USD
First Trade Date Milliseconds 1,470,922,200,000
Float Shares 52,492,872
Forward Eps -0.63283
Forward P E -205.2526
Free Cashflow -77,664,624
Full Exchange Name NasdaqGM
Full Time Employees 131
Gmt Off Set Milliseconds -14,400,000
Governance Epoch Date 1,782,864,000
Gross Margins 1.0
Gross Profits 74,063,000
Has Pre Post Market Data 1
Held Percent Insiders 0.00714
Held Percent Institutions 1.25335
Implied Shares Outstanding 64,311,373
Industry Biotechnology
Industry Disp Biotechnology
Industry Key biotechnology
Is Earnings Date Estimate 0
Language en-US
Last Fiscal Year End 1,767,139,200
Long Business Summary Protagonist Therapeutics, Inc. operates as a discovery and development company in the United States. It develops Icotyde, a first-in-class investigational targeted oral peptide for the treatment of adults and pediatric patients 12 years of age and older with moderate-to-severe plaque psoriasis; and Rusfertide, a first-in-class investigational injectable mimetic of the natural hormone hepcidin in Phase 3 development for the treatment of the rare blood disorder polycythemia vera. The company is also developing PN-881, a potential best-in-class oral peptide IL-17 antagonist, for the treatment of immune-mediated skin diseases in Phase 1 clinical trials; PN-477 and PN-458, which are development candidates for the treatment of obesity; PN-8047, an orally administered hepcidin functional mimetic small molecule; L-4R alpha antagonist for the treatment of atopic dermatitis and moderate-to-severe asthma; and amylinR-based oral and subcutaneous mono- and poly-agonists for the treatment of obesity. Protagonist Therapeutics, Inc. was incorporated in 2006 and is headquartered in Newark, California.
Long Name Protagonist Therapeutics, Inc.
Market us_market
Market Cap 8,353,403,904
Market State PRE
Max Age 86,400
Message Board Id finmb_129263324
Most Recent Quarter 1,774,915,200
Net Income To Common -114,711,000
Next Fiscal Year End 1,798,675,200
Non Diluted Market Cap 8,353,404,238
Number Of Analyst Opinions 13
Open 131.36
Operating Cashflow -116,635,000
Operating Margins -0.064720005
Overall Risk 7
Payout Ratio 0.0
Phone 510 474 0170
Pre Market Change 0.009994507
Pre Market Change Percent 0.007694593
Pre Market Price 129.9
Pre Market Time 1,784,021,999
Previous Close 131.42
Price Eps Current Year 31.03103
Price Hint 2
Price To Book 12.726827
Price To Sales Trailing12 Months 112.78781
Profit Margins -1.5488299
Quick Ratio 17.509
Quote Source Name Nasdaq Real Time Price
Quote Type EQUITY
Recommendation Key strong_buy
Recommendation Mean 1.38462
Region US
Regular Market Change -1.53
Regular Market Change Percent -1.16421
Regular Market Day High 131.36
Regular Market Day Low 125.3225
Regular Market Day Range 125.3225 - 131.36
Regular Market Open 131.36
Regular Market Previous Close 131.42
Regular Market Price 129.89
Regular Market Time 1,783,972,800
Regular Market Volume 541,006
Return On Assets -0.1237
Return On Equity -0.17063
Revenue Growth 0.99
Revenue Per Share 1.155
Sand P52 Week Change 0.20847368
Sector Healthcare
Sector Disp Healthcare
Sector Key healthcare
Share Holder Rights Risk 7
Shares Outstanding 64,311,373
Shares Percent Shares Out 0.1196
Shares Short 7,691,347
Shares Short Previous Month Date 1,780,012,800
Shares Short Prior Month 7,410,849
Short Name Protagonist Therapeutics, Inc.
Short Percent Of Float 0.1391
Short Ratio 8.88
Source Interval 15
State CA
Symbol PTGX
Target High Price 145.0
Target Low Price 100.0
Target Mean Price 120.53846
Target Median Price 118.0
Total Cash 547,785,984
Total Cash Per Share 8.518
Total Debt 9,776,000
Total Revenue 74,063,000
Tradeable 0
Trailing Annual Dividend Rate 0.0
Trailing Annual Dividend Yield 0.0
Trailing Eps -1.81
Trailing Peg Ratio None
Triggerable 1
Two Hundred Day Average 92.24255
Two Hundred Day Average Change 37.647446
Two Hundred Day Average Change Percent 0.40813532
Type Disp Equity
Volume 541,006
Website https://www.protagonist-inc.com
Zip 94,560