Korro BioKRRO -11.68%6 PB Ratio is 1.45 as of Jun. 26, 2026, which is 6% below its 10-year median of 1.55. GuruFocus rates KRRO with a GF Score™ of 6/100. The stock has 4 warning signs investors should review. Among 1,233 Biotechnology companies, Korro Bio ranks better than 68.61% 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 (2026-06-26), Korro Bio's share price is $12.06. Korro Bio's Book Value per Share for the quarter that ended in Mar. 2026 was $8.30. Hence, Korro Bio's PB Ratio of today is 1.45.
The historical rank and industry rank for Korro Bio's PB Ratio or its related term are showing as below:
KRRO'
s PB Ratio Range Over the Past 10 Years
Min: 0.54 Med: 1.55 Max: 4.39
Current: 1.47
During the past 5 years, Korro Bio's highest PB Ratio was 4.39. The lowest was 0.54. And the median was 1.55.
KRRO's PB Ratio is ranked better than 68.61% of 1233
companies
in the Biotechnology industry
Industry Median: 2.8
vs KRRO: 1.47
During the past 12 months, Korro Bio's average Book Value Per Share Growth Rate was -44.00% 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.
Korro Bio PB Ratio Related Terms
Korro Bio PB Ratio Historical Data
* Premium members only.
The historical data trend for Korro Bio'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, Korro Bio'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.
Korro Bio PB Ratio vs Biotechnology Industry
For the Biotechnology industry and Healthcare sector, Korro Bio's PB Ratio distribution charts can be found below:
* The bar in red indicates where Korro Bio'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.
Korro Bio's PB Ratio for today is calculated as follows:
* 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.
Korro Bio (KRRO) has a PB Ratio of 1.45 as of Jun. 26, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Korro Bio and its competitors. This is near median its historical median of 1.55. Over the past decade, Korro Bio's PB Ratio has ranged from 0.54 to 4.39. According to the industry distribution chart, Korro Bio ranks #387 out of 1233 companies in the Biotechnology industry, placing it in the top 31.4%.
Is Korro Bio's PB Ratio too high?
Korro Bio's current PB Ratio of 1.45 is near median its 10-year median of 1.55. Over the past 10 years, this metric has ranged from a low of 0.54 to a high of 4.39. The Biotechnology industry median PB Ratio is 2.80. Korro Bio's value of 1.45 is 48.2% below this industry median. Based on the distribution chart, Korro Bio ranks #387 out of 1233 companies in the Biotechnology industry, which is above the industry midpoint. Overall, Korro Bio has a GF Score™ of 6/100, reflecting its overall financial health beyond just this single metric.
How does Korro Bio's PB Ratio compare to TNYA and ENLV?
According to the Biotechnology industry distribution chart, Korro Bio ranks #387 out of 1233 companies for PB Ratio. This puts Korro Bio in the upper half of its industry. The industry median PB Ratio is 2.80. Korro Bio's value of 1.45 is 48.2% below this benchmark. Historically, Korro Bio's own PB Ratio has ranged from 0.54 to 4.39 over the past decade. While the company's 10-year median is 1.55 vs. the industry median of 2.80, Korro Bio has consistently been below 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 2.80, based on 1,233 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. Korro Bio's current PB Ratio of 1.45 is 48.2% below 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 Korro Bio and its competitors. For the Biotechnology industry, the median PB Ratio is 2.80 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Korro Bio's current PB Ratio is 1.45, which is near median its own 10-year median of 1.55. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Korro Bio stock overvalued right now?
Korro Bio (KRRO) has a current PB Ratio of 1.45. The current PB Ratio is 1.45, which is near median its 10-year median of 1.55 and 48.2% below the Biotechnology industry median of 2.80. Korro Bio's overall GF Score™ is 6/100 with 4 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 Korro Bio (KRRO), the current PB Ratio is 1.45 as of Jun. 26, 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.
Korro Bio Inc is a biopharmaceutical company with a mission to discover, develop, and commercialize a new class of genetic medicines based on editing RNA, enabling the treatment of both rare and highly prevalent diseases. It is generating a portfolio of differentiated programs that are designed to harness the body's natural RNA editing process to effect a precise yet transient single base edit. By editing RNA instead of DNA, Korro Bio is expanding the reach of genetic medicines by delivering additional precision and tunability. The company operates and manages its business as one reportable segment and one operating segment, which is the business of discovering, developing and commercializing therapies derived from or incorporating its RNA-editing technology.
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