American Superconductor (MIL:1AMSC) Shiller PE Ratio: (As of Aug. 14, 2026)

Author: Vera Yuan Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
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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.

MIL:1AMSC American Superconductor Corp MIL:1AMSC
59 GF Score
Price €28.66
GF Value €30.34
Valuation Fairly Valued
! 8 Warning Signs
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What is American Superconductor Shiller PE Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


American Superconductor  (MIL:1AMSC) Shiller PE Ratio Explanation

Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.

Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.


Be Aware

Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.


American Superconductor Shiller PE Ratio Related Terms


American Superconductor Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for American Superconductor's Shiller PE 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 Shiller PE Ratio Chart

American Superconductor Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Shiller PE Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00

American Superconductor Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Shiller PE 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 0.00 0.00 0.00 0.00 0.00

MIL:1AMSC vs TNC, BW, GHM: Shiller PE Ratio Comparison

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

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

* The bar in red indicates where American Superconductor's Shiller PE Ratio falls into.


MIL:1AMSC
59GF Score
American Superconductor Corp MIL:1AMSC
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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American Superconductor Shiller PE Ratio Calculation

For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller PE Ratio is also called PE10.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

American Superconductor's E10 for the quarter that ended in Jun. 2026 is calculated as:

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

Adj_EPS=Earnings per Share (Diluted)/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=0.174/333.9520*333.9520
=0.174

Current CPI (Jun. 2026) = 333.9520.

American Superconductor Quarterly Data

Earnings per Share (Diluted) CPI Adj_EPS
201609 -0.472 241.428 -0.653
201612 -0.190 241.432 -0.263
201703 -0.458 243.801 -0.627
201706 -0.810 244.955 -1.104
201709 -0.319 246.819 -0.432
201712 -0.177 246.524 -0.240
201803 -0.243 249.554 -0.325
201806 -0.197 251.989 -0.261
201809 0.943 252.439 1.247
201812 0.730 251.233 0.970
201903 -0.363 254.202 -0.477
201906 -0.150 256.143 -0.196
201909 -0.091 256.759 -0.118
201912 -0.315 256.974 -0.409
202003 -0.244 258.115 -0.316
202006 -0.142 257.797 -0.184
202009 -0.144 260.280 -0.185
202012 -0.255 260.474 -0.327
202103 -0.252 264.877 -0.318
202106 -0.166 271.696 -0.204
202109 -0.136 274.310 -0.166
202112 -0.142 278.802 -0.170
202203 -0.163 287.504 -0.189
202206 -0.303 296.311 -0.341
202209 -0.354 296.808 -0.398
202212 -0.321 296.797 -0.361
202303 -0.233 301.836 -0.258
202306 -0.175 305.109 -0.192
202309 -0.084 307.789 -0.091
202312 -0.055 306.746 -0.060
202403 -0.037 312.332 -0.040
202406 -0.065 314.175 -0.069
202409 0.117 315.301 0.124
202412 0.057 315.605 0.060
202503 0.028 319.799 0.029
202506 0.147 322.561 0.152
202509 0.094 324.800 0.097
202512 2.237 324.054 2.305
202603 0.086 330.213 0.087
202606 0.174 333.952 0.174

Add all the adjusted EPS together and divide 10 will get our E10.

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 (MIL:1AMSC) Overvalued in 2026?

Based on GuruFocus' analysis, American Superconductor stock appears to be undervalued. The current stock price of €28.66 is trading 5.5% below its estimated GF Value™ of €30.34. GuruFocus considers American Superconductor to be Fairly Valued.

Key valuation signals for MIL:1AMSC:

  • Shiller PE Ratio:
  • GF Value™: €30.34 vs. price of €28.66 (5.5% below fair value)
  • GF Score™: 59/100 with 8 warning signs

No single metric tells the full story. See the MIL:1AMSC 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.
59GF Score

Get the complete analysis for MIL:1AMSC

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

€28.66
Price
€30.34
GF Value