Delta-Fly PharmaTSE:4598 +2.27%30 PB Ratio is 52.35 as of Jul. 09, 2026, which is 1274% above its 10-year median of 3.81. GuruFocus rates TSE:4598 with a GF Score™ of 30/100. The stock has 2 warning signs investors should review. Among 1,226 Biotechnology companies, Delta-Fly Pharma ranks worse than 97.55% on this metric.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. As of today (2026-07-09), Delta-Fly Pharma's share price is 円135.00. Delta-Fly Pharma's Book Value per Share for the quarter that ended in Mar. 2026 was 円2.58. Hence, Delta-Fly Pharma's PB Ratio of today is 52.35.
Warning Sign:
Delta-Fly Pharma Inc stock PB Ratio (=52.35) is close to 10-year high of 52.35.
The historical rank and industry rank for Delta-Fly Pharma's PB Ratio or its related term are showing as below:
TSE:4598'
s PB Ratio Range Over the Past 10 Years
Min: 0.54 Med: 3.81 Max: 52.35
Current: 52.35
During the past 10 years, Delta-Fly Pharma's highest PB Ratio was 52.35. The lowest was 0.54. And the median was 3.81.
TSE:4598's PB Ratio is ranked worse than 97.55% of 1226
companies
in the Biotechnology industry
Industry Median: 2.89
vs TSE:4598: 52.35
During the past 12 months, Delta-Fly Pharma's average Book Value Per Share Growth Rate was -91.00% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was -72.50% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was -58.90% per year.
During the past 10 years, the highest 3-Year average Book Value Per Share Growth Rate of Delta-Fly Pharma was 28.90% per year. The lowest was -72.50% per year. And the median was -34.30% per year.
The PB Ratio works the best for the businesses that earn most of their profit from their assets, e.g. banks and insurance companies.
Be Aware
Some businesses have very light assets, such as software companies or insurance agencies. The PB Ratio does not work well for these companies. Some companies even have negative equity, so the PB Ratio cannot be applied to them.
Delta-Fly Pharma PB Ratio Related Terms
Delta-Fly Pharma PB Ratio Historical Data
* Premium members only.
The historical data trend for Delta-Fly Pharma's PB Ratio 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.
For the Biotechnology subindustry, Delta-Fly Pharma's PB Ratio, along with its competitors' market caps and PB Ratio 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.
Delta-Fly Pharma PB Ratio vs Biotechnology Industry
For the Biotechnology industry and Healthcare sector, Delta-Fly Pharma's PB Ratio distribution charts can be found below:
* The bar in red indicates where Delta-Fly Pharma's PB Ratio falls into.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. It is a ratio widely used to value stocks.
* 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.
It can also be calculated from the numbers for the whole company:
A closely related ratio is called Price-to-Tangible-Book. The difference between Price-to-Tangible-Book and PB Ratio is that book value other than intangibles are used in the calculation.
Delta-Fly Pharma (TSE:4598) has a PB Ratio of 52.35 as of Jul. 09, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Delta-Fly Pharma and its competitors. This is 1274% above median its historical median of 3.81. Over the past decade, Delta-Fly Pharma's PB Ratio has ranged from 0.54 to 52.35. According to the industry distribution chart, Delta-Fly Pharma ranks #1196 out of 1226 companies in the Biotechnology industry, placing it in the top 97.6%.
Is Delta-Fly Pharma's PB Ratio too high?
Delta-Fly Pharma's current PB Ratio of 52.35 is 1274% above median its 10-year median of 3.81. Over the past 10 years, this metric has ranged from a low of 0.54 to a high of 52.35. The Biotechnology industry median PB Ratio is 2.89. Delta-Fly Pharma's value of 52.35 is 1711.4% above this industry median. Based on the distribution chart, Delta-Fly Pharma ranks #1196 out of 1226 companies in the Biotechnology industry, which is in the bottom quartile relative to peers. Overall, Delta-Fly Pharma has a GF Score™ of 30/100, reflecting its overall financial health beyond just this single metric.
How does Delta-Fly Pharma's PB Ratio compare to VRTX and REGN?
According to the Biotechnology industry distribution chart, Delta-Fly Pharma ranks #1196 out of 1226 companies for PB Ratio. This places Delta-Fly Pharma in the lower half of its industry. The industry median PB Ratio is 2.89. Delta-Fly Pharma's value of 52.35 is 1711.4% above this benchmark. Historically, Delta-Fly Pharma's own PB Ratio has ranged from 0.54 to 52.35 over the past decade. While the company's 10-year median is 3.81 vs. the industry median of 2.89, Delta-Fly Pharma 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 PB Ratio for a Biotechnology company?
The median PB Ratio among Biotechnology companies is 2.89, based on 1,226 companies in the industry. Companies in the top quartile (top 25%) have a PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Delta-Fly Pharma's current PB Ratio of 52.35 is 1711.4% 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 PB Ratio mean?
A high PB Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Delta-Fly Pharma and its competitors. For the Biotechnology industry, the median PB Ratio is 2.89 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Delta-Fly Pharma's current PB Ratio is 52.35, which is 1274% above median its own 10-year median of 3.81. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Delta-Fly Pharma stock overvalued right now?
Delta-Fly Pharma (TSE:4598) has a current PB Ratio of 52.35. The current PB Ratio is 52.35, which is 1274% above median its 10-year median of 3.81 and 1711.4% above the Biotechnology industry median of 2.89. Delta-Fly Pharma's overall GF Score™ is 30/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PB Ratio calculated?
PB Ratio is calculated from a company's financial statements. For Delta-Fly Pharma (TSE:4598), the current PB Ratio is 52.35 as of Jul. 09, 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.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
TSE:4598 has been successfully added to your 
