American SuperconductorAMSC +0.99%78 PB Ratio is 3.54 as of Jun. 25, 2026, which is 31% above its 10-year median of 2.70. GuruFocus rates AMSC with a GF Score™ of 78/100 and a GF Value™ of $30.86 (Significantly Overvalued). The stock has 7 warning signs investors should review. Among 2,986 Industrial Products companies, American Superconductor ranks worse than 66.08% on this metric.
The historical rank and industry rank for American Superconductor's PB Ratio or its related term are showing as below:
AMSC'
s PB Ratio Range Over the Past 10 Years
Min: 0.95 Med: 2.7 Max: 8.91
Current: 3.54
During the past 13 years, American Superconductor's highest PB Ratio was 8.91. The lowest was 0.95. And the median was 2.70.
AMSC's PB Ratio is ranked worse than 66.08% of 2986
companies
in the Industrial Products industry
Industry Median: 2.32
vs AMSC: 3.54
During the past 12 months, American Superconductor's average Book Value Per Share Growth Rate was 133.60% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 61.50% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 19.40% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 4.70% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of American Superconductor was 117.30% per year. The lowest was -37.30% per year. And the median was -5.20% per year.
Back to Basics: PB Ratio
American Superconductor (NAS:AMSC) PB Ratio Explanation
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.
* 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 Specialty Industrial Machinery subindustry, American Superconductor'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.
American Superconductor PB Ratio vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, American Superconductor's PB Ratio distribution charts can be found below:
* The bar in red indicates where American Superconductor'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.
American Superconductor (AMSC) has a PB Ratio of 3.54 as of Jun. 25, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on American Superconductor and its competitors. This is 31% above median its historical median of 2.70. Over the past decade, American Superconductor's PB Ratio has ranged from 0.95 to 8.91. According to the industry distribution chart, American Superconductor ranks #1973 out of 2986 companies in the Industrial Products industry, placing it in the top 66.1%.
Is American Superconductor's PB Ratio too high?
American Superconductor's current PB Ratio of 3.54 is 31% above median its 10-year median of 2.70. Over the past 10 years, this metric has ranged from a low of 0.95 to a high of 8.91. The Industrial Products industry median PB Ratio is 2.32. American Superconductor's value of 3.54 is 52.6% above this industry median. Based on the distribution chart, American Superconductor ranks #1973 out of 2986 companies in the Industrial Products industry, which is below the industry midpoint. Overall, American Superconductor has a GF Score™ of 78/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does American Superconductor's PB Ratio compare to CXT and HLIO?
According to the Industrial Products industry distribution chart, American Superconductor ranks #1973 out of 2986 companies for PB Ratio. This places American Superconductor in the lower half of its industry. The industry median PB Ratio is 2.32. American Superconductor's value of 3.54 is 52.6% above this benchmark. Historically, American Superconductor's own PB Ratio has ranged from 0.95 to 8.91 over the past decade. While the company's 10-year median is 2.70 vs. the industry median of 2.32, American Superconductor 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 an Industrial Products company?
The median PB Ratio among Industrial Products companies is 2.32, based on 2,986 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. American Superconductor's current PB Ratio of 3.54 is 52.6% 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 American Superconductor and its competitors. For the Industrial Products industry, the median PB Ratio is 2.32 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. American Superconductor's current PB Ratio is 3.54, which is 31% above median its own 10-year median of 2.70. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is American Superconductor stock overvalued right now?
Based on GuruFocus' analysis, American Superconductor (AMSC) is currently considered Significantly Overvalued. The stock's GF Value™ is $30.86, compared to a current price of $41.28 — trading 33.7% above its estimated fair value. The current PB Ratio is 3.54, which is 31% above median its 10-year median of 2.70 and 52.6% above the Industrial Products industry median of 2.32. American Superconductor's overall GF Score™ is 78/100 with 7 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 American Superconductor (AMSC), the current PB Ratio is 3.54 as of Jun. 25, 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.
Is American Superconductor (AMSC) Overvalued in 2026?
Based on GuruFocus' analysis, American Superconductor stock appears to be overvalued.
The current stock price of $41.28 is trading 33.7% above its estimated GF Value™ of $30.86.
GuruFocus considers American Superconductor to be Significantly Overvalued.
Key valuation signals for AMSC:
PB Ratio: 3.54 (31% above median its 10-year median of 2.70)
GF Value™: $30.86 vs. price of $41.28 (33.7% above fair value)
Industry Position: 52.6% above the Industrial Products median (#1973 of 2986)
No single metric tells the full story. See the AMSC stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
American Superconductor Corp generates the ideas, technologies, and solutions that meet the world's demand for smarter, cleaner, and energy. Through its Windtec Solutions, the company enables manufacturers to launch wind turbines quickly, effectively, and profitably. Through its Gridtec Solutions, the company provides engineering planning services and grid systems that optimize network reliability, efficiency, and performance. The company's segment includes Grid and Wind. It generates maximum revenue from the Grid segment.
78GF Score
Get the complete analysis for AMSC
PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
AMSC has been successfully added to your 
