Heartseed (TSE:219A) Piotroski F-Score: 4 (As of Sep. 07, 2026) — 20% Below Median

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TSE:219A Heartseed Inc TSE:219A
11 GF Score
Price 円2,236.00
! 2 Warning Signs
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What is Heartseed Piotroski F-Score?

Heartseed TSE:219A +2.95% 11 Piotroski F-Score is 4 as of Sep. 07, 2026, which is 20% below its 10-year median of 5.00. GuruFocus rates TSE:219A with a GF Score™ of 11/100. The stock has 2 warning signs investors should review. Among 1,341 Biotechnology companies, Heartseed ranks better than 74.79% on this metric.

The zones of discrimination were as such:

Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3

Heartseed has an F-score of 4 indicating the company's financial situation is typical for a stable company.

The historical rank and industry rank for Heartseed's Piotroski F-Score or its related term are showing as below:

TSE:219A' s Piotroski F-Score Range Over the Past 10 Years
Min: 4   Med: 5   Max: 6
Current: 4

During the past 3 years, the highest Piotroski F-Score of Heartseed was 6. The lowest was 4. And the median was 5.

Heartseed  (TSE:219A) Piotroski F-Score Explanation

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.

In 2000, he wrote a research paper called "Value Investing: The Use of Historical Financial Statement Information to Separate Winners from Losers" (pdf).

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.


Heartseed Piotroski F-Score Related Terms


Heartseed Piotroski F-Score Historical Data

* Premium members only.

The historical data trend for Heartseed'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.

Heartseed Piotroski F-Score Chart

Heartseed Annual Data
Trend Oct22 Oct23 Oct24
Piotroski F-Score
N/A N/A 4.00

Heartseed Quarterly Data
Oct22 Oct23 Apr24 Jul24 Oct24 Apr25 Jul25 Oct25 Mar26 Jun26
Piotroski F-Score Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 6.00 0.00 0.00

TSE:219A vs VRTX, REGN, MRNA: Piotroski F-Score Comparison

For the Biotechnology subindustry, Heartseed'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.


Heartseed Piotroski F-Score vs Biotechnology Industry

For the Biotechnology industry and Healthcare sector, Heartseed's Piotroski F-Score distribution charts can be found below:

* The bar in red indicates where Heartseed's Piotroski F-Score falls into.


TSE:219A
11GF Score
Heartseed Inc TSE:219A
Piotroski F-Score is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

How is the Piotroski F-Score calculated?

* 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.

This Year (Oct24) TTM:Last Year (Oct23) TTM:
Net Income was 円-813 Mil.
Cash Flow from Operations was 円-1,343 Mil.
Revenue was 円874 Mil.
Gross Profit was 円874 Mil.
Average Total Assets from the begining of this year (Oct23)
to the end of this year (Oct24) was (5719.751 + 7067.594) / 2 = 円6393.6725 Mil.
Total Assets at the begining of this year (Oct23) was 円5,720 Mil.
Long-Term Debt & Capital Lease Obligation was 円1 Mil.
Total Current Assets was 円6,404 Mil.
Total Current Liabilities was 円282 Mil.
Net Income was 円-1,474 Mil.

Revenue was 円345 Mil.
Gross Profit was 円345 Mil.
Average Total Assets from the begining of last year (Oct22)
to the end of last year (Oct23) was (4936.004 + 5719.751) / 2 = 円5327.8775 Mil.
Total Assets at the begining of last year (Oct22) was 円4,936 Mil.
Long-Term Debt & Capital Lease Obligation was 円6 Mil.
Total Current Assets was 円5,028 Mil.
Total Current Liabilities was 円244 Mil.

*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.

Heartseed's current Net Income (TTM) was -813. ==> 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.

Heartseed's current Cash Flow from Operations (TTM) was -1,343. ==> 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.

Score 1 if it's higher, 0 if it's lower.

ROA (This Year)=Net Income/Total Assets (Oct23)
=-812.725/5719.751
=-0.14209098

ROA (Last Year)=Net Income/Total Assets (Oct22)
=-1473.5/4936.004
=-0.29852083

Heartseed's return on assets of this year was -0.14209098. Heartseed's return on assets of last year was -0.29852083. ==> This year is higher. ==> Score 1.

Question 4. Quality of Earnings (Accrual)

Compare Cash flow return on assets (2) to return on assets (1)

Score 1 if CFROA > ROA, 0 if CFROA <= ROA.

Heartseed's current Net Income (TTM) was -813. Heartseed's current Cash Flow from Operations (TTM) was -1,343. ==> -1,343 <= -813 ==> CFROA <= ROA ==> Score 0.

Funding

Question 5. Change in Gearing or Leverage

Compare this year's gearing (long-term debt divided by average total assets) to last year's gearing.

Score 0 if this year's gearing is higher, 1 otherwise.

Gearing (This Year: Oct24)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Oct23 to Oct24
=0.755/6393.6725
=0.00011809

Gearing (Last Year: Oct23)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Oct22 to Oct23
=5.57/5327.8775
=0.00104544

Heartseed's gearing of this year was 0.00011809. Heartseed's gearing of last year was 0.00104544. ==> This year is lower or equal to last year. ==> Score 1.

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

Current Ratio (This Year: Oct24)=Total Current Assets/Total Current Liabilities
=6403.814/282.074
=22.70260286

Current Ratio (Last Year: Oct23)=Total Current Assets/Total Current Liabilities
=5028.176/244.062
=20.60204374

Heartseed's current ratio of this year was 22.70260286. Heartseed's current ratio of last year was 20.60204374. ==> This year's current ratio is higher. ==> Score 1.

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.

Heartseed's number of shares in issue this year was 16.442. Heartseed's number of shares in issue last year was 13.796. ==> 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.

Gross Margin (This Year: TTM)=Gross Profit/Revenue
=873.61/873.61
=1

Gross Margin (Last Year: TTM)=Gross Profit/Revenue
=344.725/344.725
=1

Heartseed's gross margin of this year was 1. Heartseed's gross margin of last year was 1. ==> 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

Asset Turnover (This Year)=Revenue/Total Assets at the Beginning of This Year (Oct23)
=873.61/5719.751
=0.15273567

Asset Turnover (Last Year)=Revenue/Total Assets at the Beginning of Last Year (Oct22)
=344.725/4936.004
=0.06983888

Heartseed's asset turnover of this year was 0.15273567. Heartseed's asset turnover of last year was 0.06983888. ==> 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+0+1+1+0+0+1
=4

Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3

Heartseed has an F-score of 4 indicating the company's financial situation is typical for a stable company.

Frequently Asked Questions Learn more about Piotroski F-Score →
What does a Piotroski F-Score of 4 mean?
Heartseed (TSE:219A) has a Piotroski F-Score of 4 as of Sep. 07, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Heartseed and its competitors. This is 20% below median its historical median of 5.00. Over the past decade, Heartseed's Piotroski F-Score has ranged from 4.00 to 6.00. According to the industry distribution chart, Heartseed ranks #338 out of 1341 companies in the Biotechnology industry, placing it in the top 25.2%.
Is Heartseed's Piotroski F-Score too high?
Heartseed's current Piotroski F-Score of 4 is 20% below median its 10-year median of 5.00. Over the past 10 years, this metric has ranged from a low of 4.00 to a high of 6.00. The Biotechnology industry median Piotroski F-Score is 3.00. Heartseed's value of 4 is 33.3% above this industry median. Based on the distribution chart, Heartseed ranks #338 out of 1341 companies in the Biotechnology industry, which is above the industry midpoint. Overall, Heartseed has a GF Score™ of 11/100, reflecting its overall financial health beyond just this single metric.
How does Heartseed's Piotroski F-Score compare to VRTX and REGN?
According to the Biotechnology industry distribution chart, Heartseed ranks #338 out of 1341 companies for Piotroski F-Score. This puts Heartseed in the upper half of its industry. The industry median Piotroski F-Score is 3.00. Heartseed's value of 4 is 33.3% above this benchmark. Historically, Heartseed's own Piotroski F-Score has ranged from 4.00 to 6.00 over the past decade. While the company's 10-year median is 5.00 vs. the industry median of 3.00, Heartseed has consistently been above 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 1,341 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. Heartseed's current Piotroski F-Score of 4 is 33.3% above 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 Heartseed 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. Heartseed's current Piotroski F-Score is 4, which is 20% below median its own 10-year median of 5.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Heartseed stock overvalued right now?
Heartseed (TSE:219A) has a current Piotroski F-Score of 4. The current Piotroski F-Score is 4, which is 20% below median its 10-year median of 5.00 and 33.3% above the Biotechnology industry median of 3.00. Heartseed's overall GF Score™ is 11/100 with 2 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 Heartseed (TSE:219A), the current Piotroski F-Score is 4 as of Sep. 07, 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.

Heartseed Business Description

Address 1-2-3 Shibaura, Minato-ku, Tokyo, JPN, 105-0023
Heartseed Inc is a Japanese biotechnology company focused on developing and commercializing regenerative medicine treatments for severe heart failure. The company's product candidate, HS-001, involves transplanting clusters of purified heart muscle cells derived from iPSCs to the patient's heart to treat heart failure, especially Heart Failure with reduced Left Ventricular Ejection Fraction (HFrEF), including conditions such as Dilated Cardiomyopathy, Old Myocardial Infarction, and Dilated phase of Hypertrophic Cardiomyopathy.
11GF Score

Get the complete analysis for TSE:219A

Piotroski F-Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

円2,236.00
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