| AMSC Market Cap History Table | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Below is a table of the AMSC market cap history going back to 3/25/2015:
Also see: AMSC Shares Outstanding History and AMSC YTD Return |
AMSC Market Cap History — American Superconductor Capitalization Over Time
As of 5/22/2026 American Superconductor has a market cap of 2.47 billion. Investors often follow the AMSC market cap history to compare the size of the company over time.
This page shows AMSC market capitalization trends over time, with 47 market cap datapoints presented, dating back to 3/25/2015.
| AMSC Market Cap History Chart | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
AMSC Historical Market Cap: +37.79% CAGR 
Mouse over chart for data details
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| AMSC Stock Price Chart |
| About American Superconductor Corp. |
| American Superconductor Corporation is a provider of megawatt-scale power resiliency solutions. Co.'s solutions include Gridtec, Marinetec and Windtec. Co., through its Gridtec solutions, provides engineering planning services and advanced grid systems that optimize network reliability, efficiency and performance. Co., through its Marinetec solutions, provides ship protection and is developing propulsion and power management solutions designed to help fleets increase system efficiencies, enhance power quality and boost operational safety. Co., through its Windtec solutions, provides wind turbine electronic controls and systems, designs and engineering services. We show 47 historical shares outstanding datapoints in our AMSC shares outstanding history coverage, used to compute AMSC market cap on those dates. Understanding the changing numbers of shares outstanding, the changing share price, and the resulting changing AMSC market cap history over the course of time is important for investors interested in comparing AMSC's market cap history versus its peers. Many "beginner" or "novice" investors will look at one stock trading at a price of $10 per share and another trading at a price of $20 per share and think the latter company is worth twice as much. Of course, that is a completely meaningless comparison without also knowing how many shares outstanding there are for each of the two companies, and then calculating their respective market caps. Comparing the share price of AMSC versus a peer is one thing; comparing AMSC market cap versus a peer is a completely different story. Furthermore, via fluctuation both in per-share price and in the number of shares outstanding (via issuance of new shares over time, the repurchase of existing shares), the market cap for a company like AMSC can fluctuate over the course of history. With this page we aim to empower investors researching AMSC by allowing them to research the AMSC market cap history. |
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| Video: The Importance of Market Cap | |
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Video: The Importance of Market Cap
| AMSC Share Performance |
| Market Cap Peers |
| American Superconductor (AMSC) is categorized under the Industrials sector; to help you further research historical market cap numbers, below are some other companies in the same sector:
AMV Market Cap History AMWL Market Cap History ANW Market Cap History APG Market Cap History APH Market Cap History APWC Market Cap History AQUA Market Cap History ARC Market Cap History ARCB Market Cap History ARCW Market Cap History More Industrials companies » |
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