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Joby AviationSTU:8TQ -1.55%30 Altman Z-Score is 3.05 as of Jul. 29, 2026, which is 70% below its 10-year median of 10.01. GuruFocus rates STU:8TQ with a GF Score™ of 30/100. The stock has 4 warning signs investors should review. Among 997 Transportation companies, Joby Aviation ranks better than 66.2% on this metric.
The Altman Z-Score is a model designed to predict the likelihood of a company going bankrupt within the next two years. Created by American finance professor Edward Altman in 1968, the model is specifically designed for publicly traded manufacturing companies with assets greater than $1 million.
Warning Sign:
Altman Z-score of 2.97 is in the grey area. This implies that the company is under some kind of financial stress. If it is below 1.8, the company may face bankruptcy risk.
Joby Aviation has a Altman Z-Score of 3.05, indicating it is in Safe Zones. This implies the Altman Z-Score is strong.
The zones of discrimination were as such:
When Altman Z-Score <= 1.8, it is in Distress Zones.
When Altman Z-Score >= 3, it is in Safe Zones.
When Altman Z-Score is between 1.8 and 3, it is in Grey Zones.
The historical rank and industry rank for Joby Aviation's Altman Z-Score or its related term are showing as below:
STU:8TQ'
s Altman Z-Score Range Over the Past 10 Years
Min: 2.97 Med: 10.01 Max: 15.88
Current: 2.97
During the past 6 years, Joby Aviation's highest Altman Z-Score was 15.88. The lowest was 2.97. And the median was 10.01.
X1: The Working Capital/Total Assets (WC/TA) ratio is a measure of the net liquid assets of the firm relative to the total capitalization. Working capital is defined as the difference between current assets and current liabilities. Ordinarily, a firm experiencing consistent operating losses will have shrinking current assets in relation to total assets. Altman found this one proved to be the most valuable liquidity ratio comparing with the current ratio and the quick ratio. This is however the least significant of the five factors.
X2: Retained Earnings/Total Assets: the RE/TA ratio measures the leverage of a firm. Retained earnings is the account which reports the total amount of reinvested earnings and/or losses of a firm over its entire life. Those firms with high RE, relative to TA, have financed their assets through retention of profits and have not utilized as much debt.
X3, Earnings Before Interest and Taxes/Total Assets (EBIT/TA): This ratio is a measure of the true productivity of the firm's assets, independent of any tax or leverage factors. Since a firm's ultimate existence is based on the earning power of its assets, this ratio appears to be particularly appropriate for studies dealing with corporate failure. This ratio continually outperforms other profitability measures, including cash flow.
X4, Market Value of Equity/Book Value of Total Liabilities (MVE/TL): The measure shows how much the firm's assets can decline in value (measured by market value of equity plus debt) before the liabilities exceed the assets and the firm becomes insolvent.
X5, Revenue/Total Assets (S/TA): The capital-turnover ratio is a standard financial ratio illustrating the sales generating ability of the firm's assets.
Altman Z-Score does not apply to financial companies.
Joby Aviation Altman Z-Score Related Terms
Joby Aviation Altman Z-Score Historical Data
* Premium members only.
The historical data trend for Joby Aviation's Altman Z-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.
STU:8TQ vs CAAP, ASLE, UP: Altman Z-Score Comparison
For the Airports & Air Services subindustry, Joby Aviation's Altman Z-Score, along with its competitors' market caps and Altman Z-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.
Joby Aviation Altman Z-Score vs Transportation Industry
For the Transportation industry and Industrials sector, Joby Aviation's Altman Z-Score distribution charts can be found below:
* The bar in red indicates where Joby Aviation's Altman Z-Score falls into.
Altman Z-Score model is an accurate forecaster of failure up to two years prior to distress. It can be considered the assessment of the distress of industrial corporations.
Joby Aviation's Altman Z-Score for today is calculated with this formula:
Z
=
1.2
*
X1
+
1.4
*
X2
+
3.3
*
X3
+
0.6
*
X4
+
1.0
*
X5
=
1.2
*
0.819
+
1.4
*
-0.989
+
3.3
*
-0.3242
+
0.6
*
7.4973
+
1.0
*
0.0263
=
3.05
* 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. GuruFocus does not calculate Altman Z-Score when X4 or X5 value is 0.
Joby Aviation (STU:8TQ) has a Altman Z-Score of 3.05 as of Jul. 29, 2026. The Altman Z-score measures a company's bankruptcy risk. View historical data on Joby Aviation and its competitors. This is 70% below median its historical median of 10.01. Over the past decade, Joby Aviation's Altman Z-Score has ranged from 2.97 to 15.88. According to the industry distribution chart, Joby Aviation ranks #337 out of 997 companies in the Transportation industry, placing it in the top 33.8%.
Is Joby Aviation's Altman Z-Score too high?
Joby Aviation's current Altman Z-Score of 3.05 is 70% below median its 10-year median of 10.01. Over the past 10 years, this metric has ranged from a low of 2.97 to a high of 15.88. The Transportation industry median Altman Z-Score is 2.26. Joby Aviation's value of 3.05 is 35% above this industry median. Based on the distribution chart, Joby Aviation ranks #337 out of 997 companies in the Transportation industry, which is above the industry midpoint. 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 Altman Z-Score compare to CAAP and ASLE?
According to the Transportation industry distribution chart, Joby Aviation ranks #337 out of 997 companies for Altman Z-Score. This puts Joby Aviation in the upper half of its industry. The industry median Altman Z-Score is 2.26. Joby Aviation's value of 3.05 is 35% above this benchmark. Historically, Joby Aviation's own Altman Z-Score has ranged from 2.97 to 15.88 over the past decade. While the company's 10-year median is 10.01 vs. the industry median of 2.26, 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 Altman Z-Score for a Transportation company?
The median Altman Z-Score among Transportation companies is 2.26, based on 997 companies in the industry. Companies in the top quartile (top 25%) have a Altman Z-Score significantly above this median, while those in the bottom quartile fall well below. However, Altman Z-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Joby Aviation's current Altman Z-Score of 3.05 is 35% 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 Altman Z-Score mean?
A high Altman Z-Score can signal that a stock is expensive relative to its fundamentals. The Altman Z-score measures a company's bankruptcy risk. View historical data on Joby Aviation and its competitors. For the Transportation industry, the median Altman Z-Score is 2.26 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Joby Aviation's current Altman Z-Score is 3.05, which is 70% below median its own 10-year median of 10.01. 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 Altman Z-Score of 3.05. The current Altman Z-Score is 3.05, which is 70% below median its 10-year median of 10.01 and 35% above the Transportation industry median of 2.26. 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 Altman Z-Score calculated?
Altman Z-Score is calculated from a company's financial statements. For Joby Aviation (STU:8TQ), the current Altman Z-Score is 3.05 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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