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Joby AviationSTU:8TQ -1.55%30 PB Ratio is 3.68 as of Jul. 29, 2026, which is 34% below its 10-year median of 5.61. GuruFocus rates STU:8TQ with a GF Score™ of 30/100. The stock has 4 warning signs investors should review. Among 966 Transportation companies, Joby Aviation ranks worse than 86.96% 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 (2026-07-29), Joby Aviation's share price is €6.35. Joby Aviation's Book Value per Share for the quarter that ended in Mar. 2026 was €1.73. Hence, Joby Aviation's PB Ratio of today is 3.68.
Good Sign:
Joby Aviation Inc stock PB Ratio (=3.64) is close to 3-year low of 3.28.
The historical rank and industry rank for Joby Aviation's PB Ratio or its related term are showing as below:
STU:8TQ'
s PB Ratio Range Over the Past 10 Years
Min: 3.28 Med: 5.61 Max: 17.81
Current: 3.64
During the past 6 years, Joby Aviation's highest PB Ratio was 17.81. The lowest was 3.28. And the median was 5.61.
STU:8TQ's PB Ratio is ranked worse than 86.96% of 966
companies
in the Transportation industry
Industry Median: 1.25
vs STU:8TQ: 3.64
During the past 12 months, Joby Aviation's average Book Value Per Share Growth Rate was 83.30% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was -6.30% per year.
During the past 6 years, the highest 3-Year average Book Value Per Share Growth Rate of Joby Aviation was -6.30% per year. The lowest was -18.90% per year. And the median was -12.60% 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.
Joby Aviation PB Ratio Related Terms
Joby Aviation PB Ratio Historical Data
* Premium members only.
The historical data trend for Joby Aviation'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 Airports & Air Services subindustry, Joby Aviation'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.
Joby Aviation PB Ratio vs Transportation Industry
For the Transportation industry and Industrials sector, Joby Aviation's PB Ratio distribution charts can be found below:
* The bar in red indicates where Joby Aviation'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.
Joby Aviation'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.
Joby Aviation (STU:8TQ) has a PB Ratio of 3.68 as of Jul. 29, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Joby Aviation and its competitors. This is 34% below median its historical median of 5.61. Over the past decade, Joby Aviation's PB Ratio has ranged from 3.28 to 17.81. According to the industry distribution chart, Joby Aviation ranks #840 out of 966 companies in the Transportation industry, placing it in the top 87%.
Is Joby Aviation's PB Ratio too high?
Joby Aviation's current PB Ratio of 3.68 is 34% below median its 10-year median of 5.61. Over the past 10 years, this metric has ranged from a low of 3.28 to a high of 17.81. The Transportation industry median PB Ratio is 1.25. Joby Aviation's value of 3.68 is 194.4% above this industry median. Based on the distribution chart, Joby Aviation ranks #840 out of 966 companies in the Transportation industry, which is in the bottom quartile relative to peers. Overall, Joby Aviation has a GF Score™ of 30/100, reflecting its overall financial health beyond just this single metric.
How does Joby Aviation's PB Ratio compare to CAAP and ASLE?
According to the Transportation industry distribution chart, Joby Aviation ranks #840 out of 966 companies for PB Ratio. This places Joby Aviation in the lower half of its industry. The industry median PB Ratio is 1.25. Joby Aviation's value of 3.68 is 194.4% above this benchmark. Historically, Joby Aviation's own PB Ratio has ranged from 3.28 to 17.81 over the past decade. While the company's 10-year median is 5.61 vs. the industry median of 1.25, Joby Aviation 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 Transportation company?
The median PB Ratio among Transportation companies is 1.25, based on 966 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. Joby Aviation's current PB Ratio of 3.68 is 194.4% 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 Joby Aviation and its competitors. For the Transportation industry, the median PB Ratio is 1.25 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Joby Aviation's current PB Ratio is 3.68, which is 34% below median its own 10-year median of 5.61. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Joby Aviation stock overvalued right now?
Joby Aviation (STU:8TQ) has a current PB Ratio of 3.68. The current PB Ratio is 3.68, which is 34% below median its 10-year median of 5.61 and 194.4% above the Transportation industry median of 1.25. Joby Aviation's overall GF Score™ is 30/100 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 Joby Aviation (STU:8TQ), the current PB Ratio is 3.68 as of Jul. 29, 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.
Joby Aviation Inc is a transportation company developing an all-electric, vertical take-off and landing (eVTOL) air taxi for commercial passenger service. Its Joby eVTOL aircraft is designed to transport a pilot and up to four passengers or an expected payload of up to 1,000 pounds at speeds of up to 200 mph. The aircraft is optimized for urban routes, with a target range of up to 100 miles on a single charge. The company is also developing an app-based platform that will help consumers to book rides directly through its service. It has one operating and reportable segment, air transportation and related services. The company's revenue consists of passenger revenue, which includes revenue generated from the transportation of passengers via helicopter or fixed wing aircraft.
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