American Superconductor (STU:AMS1) Cyclically Adjusted PB Ratio: (As of Aug. 08, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
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Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

STU:AMS1 American Superconductor Corp STU:AMS1
82 GF Score
Price €28.38
GF Value €29.29
Valuation Fairly Valued
! 8 Warning Signs
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What is American Superconductor Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


American Superconductor  (STU:AMS1) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.


American Superconductor Cyclically Adjusted PB Ratio Related Terms


American Superconductor Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for American Superconductor's Cyclically Adjusted 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.

American Superconductor Cyclically Adjusted PB Ratio Chart

American Superconductor Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.79 0.69 2.50 3.87 6.87

American Superconductor Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted PB Ratio Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 7.84 12.67 6.06 6.87 8.14

STU:AMS1 vs TNC, BW, GHM: Cyclically Adjusted PB Ratio Comparison

For the Specialty Industrial Machinery subindustry, American Superconductor's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted 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 Cyclically Adjusted PB Ratio vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, American Superconductor's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where American Superconductor's Cyclically Adjusted PB Ratio falls into.


STU:AMS1
82GF Score
American Superconductor Corp STU:AMS1
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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American Superconductor Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.

American Superconductor's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 is calculated as:

For example, American Superconductor's adjusted Book Value per Share data for the three months ended in Jun. 2026 was:

Adj_Book=Book Value per Share/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=10.545/333.9520*333.9520
=10.545

Current CPI (Jun. 2026) = 333.9520.

American Superconductor Quarterly Data

Book Value per Share CPI Adj_Book
201609 4.186 241.428 5.790
201612 4.256 241.432 5.887
201703 3.853 243.801 5.278
201706 2.936 244.955 4.003
201709 2.432 246.819 3.291
201712 2.314 246.524 3.135
201803 2.020 249.554 2.703
201806 1.956 251.989 2.592
201809 2.834 252.439 3.749
201812 3.639 251.233 4.837
201903 3.355 254.202 4.408
201906 3.210 256.143 4.185
201909 3.180 256.759 4.136
201912 3.040 256.974 3.951
202003 2.891 258.115 3.740
202006 2.673 257.797 3.463
202009 2.404 260.280 3.084
202012 3.612 260.474 4.631
202103 3.549 264.877 4.475
202106 3.474 271.696 4.270
202109 3.427 274.310 4.172
202112 3.467 278.802 4.153
202203 3.482 287.504 4.045
202206 3.331 296.311 3.754
202209 3.329 296.808 3.746
202212 2.788 296.797 3.137
202303 2.586 301.836 2.861
202306 2.376 305.109 2.601
202309 2.376 307.789 2.578
202312 2.373 306.746 2.583
202403 3.600 312.332 3.849
202406 3.599 314.175 3.826
202409 4.274 315.301 4.527
202412 4.663 315.605 4.934
202503 4.618 319.799 4.822
202506 6.395 322.561 6.621
202509 6.452 324.800 6.634
202512 9.629 324.054 9.923
202603 10.087 330.213 10.201
202606 10.545 333.952 10.545

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

Is American Superconductor (STU:AMS1) Overvalued in 2026?

Based on GuruFocus' analysis, American Superconductor stock appears to be undervalued. The current stock price of €28.38 is trading 3.1% below its estimated GF Value™ of €29.29. GuruFocus considers American Superconductor to be Fairly Valued.

Key valuation signals for STU:AMS1:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: €29.29 vs. price of €28.38 (3.1% below fair value)
  • GF Score™: 82/100 with 8 warning signs

No single metric tells the full story. See the STU:AMS1 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


American Superconductor Business Description

Address 114 East Main Street, Ayer, MA, USA, 01432
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.
82GF Score

Get the complete analysis for STU:AMS1

Cyclically Adjusted PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€28.38
Price
€29.29
GF Value