Phathom PharmaceuticalsPHAT -4.24%23 Piotroski F-Score is 3 as of Jun. 25, 2026, which is at its 10-year median of 3.00. GuruFocus rates PHAT with a GF Score™ of 23/100. The stock has 3 warning signs investors should review. Among 1,342 Biotechnology companies, Phathom Pharmaceuticals ranks better than 55.14% on this metric.
Warning Sign:
Piotroski F-Score of 3 is low, which usually implies poor business operation.
The zones of discrimination were as such:
Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Phathom Pharmaceuticals has an F-score of 3. It is a bad or low score, which usually implies poor business operation.
The historical rank and industry rank for Phathom Pharmaceuticals's Piotroski F-Score or its related term are showing as below:
PHAT'
s Piotroski F-Score Range Over the Past 10 Years
Min: 1 Med: 3 Max: 5
Current: 3
During the past 8 years, the highest Piotroski F-Score of Phathom Pharmaceuticals was 5. The lowest was 1. And the median was 3.
The developer of the system is Joseph D. Piotroski is relatively unknown accounting professor who shuns publicity and rarely gives interviews.
He graduated from the University of Illinois with a B.S. in accounting in 1989, received an M.B.A. from Indiana University in 1994. Five years later, in 1999, after earning a Ph.D. in accounting from the University of Michigan, he became an associate professor of accounting at the University of Chicago.
He wanted to see if he can develop a system (using a simple nine-point scoring system) that can increase the returns of a strategy of investing in low price to book (referred to in the paper as high book to market) value companies.
What he found was something that exceeded his most optimistic expectations.
Buying only those companies that scored highest (8 or 9) on his nine-point scale, or F-Score as he called it, over the 20 year period from 1976 to 1996 led to an average out-performance over the market of 13.4%.
Even more impressive were the results of a strategy of investing in the highest F-Score companies (8 or 9) and shorting companies with the lowest F-Score (0 or 1).
Over the same period from 1976 to 1996 (20 years) this strategy led to an average yearly return of 23%, substantially outperforming the average S&P 500 index return of 15.83% over the same period.
Phathom Pharmaceuticals Piotroski F-Score Related Terms
Phathom Pharmaceuticals Piotroski F-Score Historical Data
* Premium members only.
The historical data trend for Phathom Pharmaceuticals's Piotroski F-Score 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.
PHAT vs AURA, RLMD, SMNR: Piotroski F-Score Comparison
For the Biotechnology subindustry, Phathom Pharmaceuticals's Piotroski F-Score, along with its competitors' market caps and Piotroski F-Score data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Phathom Pharmaceuticals Piotroski F-Score vs Biotechnology Industry
For the Biotechnology industry and Healthcare sector, Phathom Pharmaceuticals's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where Phathom Pharmaceuticals's Piotroski F-Score falls into.
* 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.
*Note: If the latest quarterly/semi-annual/annual total assets data is 0, then we will use previous quarterly/semi-annual/annual data for all the items in the balance sheet.
Profitability
Question 1. Return on Assets (ROA)
Net income before extraordinary items for the year divided by Total Assets at the beginning of the year.
Score 1 if positive, 0 if negative.
Phathom Pharmaceuticals's current Net Income (TTM) was -157.3.
==> Negative ==> Score 0.
Question 2. Cash Flow Return on Assets (CFROA)
Net cash flow from operating activities (operating cash flow) divided by Total Assets at the beginning of the year.
Score 1 if positive, 0 if negative.
Phathom Pharmaceuticals's current Cash Flow from Operations (TTM) was -97.5.
==> Negative ==> Score 0.
Question 3. Change in Return on Assets
Compare this year's return on assets (1) to last year's return on assets.
Phathom Pharmaceuticals's return on assets of this year was -0.53465575. Phathom Pharmaceuticals's return on assets of last year was -0.96996065.
==> This year is higher. ==> Score 1.
Question 4. Quality of Earnings (Accrual)
Compare Cash flow return on assets (2) to return on assets (1)
Phathom Pharmaceuticals's gearing of this year was 0.61392779. Phathom Pharmaceuticals's gearing of last year was 0.58557027.
==> Last year is lower than this year ==> Score 0.
Question 6. Change in Working Capital (Liquidity)
Compare this year's current ratio (current assets divided by current liabilities) to last year's current ratio.
Score 1 if this year's current ratio is higher, 0 if it's lower
Phathom Pharmaceuticals's current ratio of this year was 2.21184252. Phathom Pharmaceuticals's current ratio of last year was 3.57818241.
==> Last year's current ratio is higher ==> Score 0.
Question 7. Change in Shares in Issue
Compare the number of shares in issue this year, to the number in issue last year.
Score 0 if there is larger number of shares in issue this year, 1 otherwise.
Phathom Pharmaceuticals's number of shares in issue this year was 82.051. Phathom Pharmaceuticals's number of shares in issue last year was 71.969.
==> There is larger number of shares in issue this year. ==> Score 0.
Efficiency
Question 8. Change in Gross Margin
Compare this year's gross margin (Gross Profit divided by sales) to last year's.
Score 1 if this year's gross margin is higher, 0 if it's lower.
Phathom Pharmaceuticals's gross margin of this year was 0.8493255. Phathom Pharmaceuticals's gross margin of last year was 0.86231202.
==> Last year's gross margin is higher ==> Score 0.
Question 9. Change in asset turnover
Compare this year's asset turnover (total sales for the year divided by total assets at the beginning of the year) to last year's asset turnover ratio.
Score 1 if this year's asset turnover ratio is higher, 0 if it's lower
Phathom Pharmaceuticals's asset turnover of this year was 0.69641886. Phathom Pharmaceuticals's asset turnover of last year was 0.22961916.
==> This year's asset turnover is higher. ==> Score 1.
Evaluation
Piotroski F-Score
=
Que. 1
+
Que. 2
+
Que. 3
+
Que. 4
+
Que. 5
+
Que. 6
+
Que. 7
+
Que. 8
+
Que. 9
=
0
+
0
+
1
+
1
+
0
+
0
+
0
+
0
+
1
=
3
Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Phathom Pharmaceuticals has an F-score of 3. It is a bad or low score, which usually implies poor business operation.
Phathom Pharmaceuticals (PHAT) has a Piotroski F-Score of 3 as of Jun. 25, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Phathom Pharmaceuticals and its competitors. This is near median its historical median of 3.00. Over the past decade, Phathom Pharmaceuticals' Piotroski F-Score has ranged from 1.00 to 5.00. According to the industry distribution chart, Phathom Pharmaceuticals ranks #602 out of 1342 companies in the Biotechnology industry, placing it in the top 44.9%.
Is Phathom Pharmaceuticals' Piotroski F-Score too high?
Phathom Pharmaceuticals' current Piotroski F-Score of 3 is near median its 10-year median of 3.00. Over the past 10 years, this metric has ranged from a low of 1.00 to a high of 5.00. The Biotechnology industry median Piotroski F-Score is 3.00. Phathom Pharmaceuticals' value of 3 is 0% at this industry median. Based on the distribution chart, Phathom Pharmaceuticals ranks #602 out of 1342 companies in the Biotechnology industry, which is above the industry midpoint. Overall, Phathom Pharmaceuticals has a GF Score™ of 23/100, reflecting its overall financial health beyond just this single metric.
How does Phathom Pharmaceuticals' Piotroski F-Score compare to AURA and RLMD?
According to the Biotechnology industry distribution chart, Phathom Pharmaceuticals ranks #602 out of 1342 companies for Piotroski F-Score. This puts Phathom Pharmaceuticals in the upper half of its industry. The industry median Piotroski F-Score is 3.00. Phathom Pharmaceuticals' value of 3 is 0% at this benchmark. Historically, Phathom Pharmaceuticals' own Piotroski F-Score has ranged from 1.00 to 5.00 over the past decade. While the company's 10-year median is 3.00 vs. the industry median of 3.00, Phathom Pharmaceuticals has consistently been at the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Piotroski F-Score for a Biotechnology company?
The median Piotroski F-Score among Biotechnology companies is 3.00, based on 1,342 companies in the industry. Companies in the top quartile (top 25%) have a Piotroski F-Score significantly above this median, while those in the bottom quartile fall well below. However, Piotroski F-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Phathom Pharmaceuticals's current Piotroski F-Score of 3 is 0% at the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Piotroski F-Score mean?
A high Piotroski F-Score can signal that a stock is expensive relative to its fundamentals. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Phathom Pharmaceuticals and its competitors. For the Biotechnology industry, the median Piotroski F-Score is 3.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Phathom Pharmaceuticals's current Piotroski F-Score is 3, which is near median its own 10-year median of 3.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Phathom Pharmaceuticals stock overvalued right now?
Phathom Pharmaceuticals (PHAT) has a current Piotroski F-Score of 3. The current Piotroski F-Score is 3, which is near median its 10-year median of 3.00 and 0% at the Biotechnology industry median of 3.00. Phathom Pharmaceuticals' overall GF Score™ is 23/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Piotroski F-Score calculated?
Piotroski F-Score is calculated from a company's financial statements. For Phathom Pharmaceuticals (PHAT), the current Piotroski F-Score is 3 as of Jun. 25, 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.
Phathom Pharmaceuticals Inc operates as a clinical-stage biopharmaceutical company. The firm is focused on developing and commercializing novel treatments for gastrointestinal, or GI, diseases. Its product comprises vonoprazan, an oral small-molecule potassium competitive acid blocker medicine that blocks acid secretion in the stomach. Vonoprazan shows rapid, potent, and durable anti-secretory effects and has demonstrated clinical benefits in the treatment of gastroesophageal reflux disease, and in combination with antibiotics for the treatment of Helicobacter pylori infection.
23GF Score
Get the complete analysis for PHAT
Piotroski F-Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
PHAT has been successfully added to your 
