AMSC (American Superconductor) Days Inventory: 151.94 (As of Mar. 2026) — 26% Above Median


AMSC American Superconductor Corp AMSC
78 GF Score
Price $40.42
GF Value $30.86
Valuation Significantly Overvalued
! 7 Warning Signs
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What is American Superconductor Days Inventory?

American Superconductor AMSC -1.10% 78 Days Inventory is 151.94 as of Mar. 2026, which is 26% above its 10-year median of 120.86. 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 2,972 Industrial Products companies, American Superconductor ranks worse than 62.18% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). American Superconductor's Average Total Inventories for the three months ended in Mar. 2026 was $104.6 Mil. American Superconductor's Cost of Goods Sold for the three months ended in Mar. 2026 was $62.8 Mil. Hence, American Superconductor's Days Inventory for the three months ended in Mar. 2026 was 151.94.

The historical rank and industry rank for American Superconductor's Days Inventory or its related term are showing as below:

AMSC' s Days Inventory Range Over the Past 10 Years
Min: 71.07   Med: 120.86   Max: 153.64
Current: 150.16

During the past 13 years, American Superconductor's highest Days Inventory was 153.64. The lowest was 71.07. And the median was 120.86.

AMSC's Days Inventory is ranked worse than
62.18% of 2972 companies
in the Industrial Products industry
Industry Median: 119.385 vs AMSC: 150.16

American Superconductor's Days Inventory increased from Mar. 2025 (135.82) to Mar. 2026 (151.94). It might indicate that American Superconductor's sales slowed down.

Inventory Turnover measures how fast the company turns over its inventory within a year. American Superconductor's Inventory Turnover for the three months ended in Mar. 2026 was 0.60.

Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue. American Superconductor's Inventory-to-Revenue for the three months ended in Mar. 2026 was 1.21.


American Superconductor  (NAS:AMSC) Days Inventory Explanation

Days Inventory indicates the liquidity of the inventory. Generally, a lower Days Inventory is preferred as it indicates a shorter duration to clear off the inventory. An increase of the ratio may indicate the company's sales slowed. Similar ratios related to Days Inventory are:

1. Inventory Turnover measures how fast the company turns over its inventory within a year.

American Superconductor's Inventory Turnover for the three months ended in Mar. 2026 is calculated as

2. Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue.

American Superconductor's Inventory to Revenue for the three months ended in Mar. 2026 is calculated as

* 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.


Be Aware

A lot of business are seasonable. It makes more sense to compare Days Inventory from the same period in the previous year instead of from the previous quarter.


American Superconductor Days Inventory Related Terms


American Superconductor Days Inventory Historical Data

* Premium members only.

The historical data trend for American Superconductor's Days Inventory 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 Days Inventory Chart

American Superconductor Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Days Inventory
Get a 7-Day Free Trial Premium Member Only Premium Member Only 71.07 113.57 130.39 128.15 153.64

American Superconductor Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Days Inventory 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 135.82 136.08 147.71 159.68 151.94

AMSC vs CXT, HLIO, BW: Days Inventory Comparison

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

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

* The bar in red indicates where American Superconductor's Days Inventory falls into.


AMSC
78GF Score
American Superconductor Corp AMSC
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
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American Superconductor Days Inventory Calculation

Days Inventory indicates the number of days of goods in sales that a company has in the inventory.

American Superconductor's Days Inventory for the fiscal year that ended in Mar. 2026 is calculated as

Days Inventory (A: Mar. 2026 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (A: Mar. 2025 ) + Total Inventories (A: Mar. 2026 )) / count ) / Cost of Goods Sold (A: Mar. 2026 )*Days in Period
=( (71.169 + 103.748) / 2 ) / 207.776*365
=87.4585 / 207.776*365
=153.64

American Superconductor's Days Inventory for the quarter that ended in Mar. 2026 is calculated as:

Days Inventory (Q: Mar. 2026 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (Q: Dec. 2025 ) + Total Inventories (Q: Mar. 2026 )) / count ) / Cost of Goods Sold (Q: Mar. 2026 )*Days in Period
=( (105.408 + 103.748) / 2 ) / 62.806*365 / 4
=104.578 / 62.806*365 / 4
=151.94

* 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.

Frequently Asked Questions Learn more about Days Inventory →
What does a Days Inventory of 151.94 mean?
American Superconductor (AMSC) has a Days Inventory of 151.94 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on American Superconductor and its competitors. This is 26% above median its historical median of 120.86. Over the past decade, American Superconductor's Days Inventory has ranged from 71.07 to 153.64. According to the industry distribution chart, American Superconductor ranks #1848 out of 2972 companies in the Industrial Products industry, placing it in the top 62.2%.
Is American Superconductor's Days Inventory too high?
American Superconductor's current Days Inventory of 151.94 is 26% above median its 10-year median of 120.86. Over the past 10 years, this metric has ranged from a low of 71.07 to a high of 153.64. The Industrial Products industry median Days Inventory is 119.39. American Superconductor's value of 151.94 is 27.3% above this industry median. Based on the distribution chart, American Superconductor ranks #1848 out of 2972 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 Days Inventory compare to CXT and HLIO?
According to the Industrial Products industry distribution chart, American Superconductor ranks #1848 out of 2972 companies for Days Inventory. This places American Superconductor in the lower half of its industry. The industry median Days Inventory is 119.39. American Superconductor's value of 151.94 is 27.3% above this benchmark. Historically, American Superconductor's own Days Inventory has ranged from 71.07 to 153.64 over the past decade. While the company's 10-year median is 120.86 vs. the industry median of 119.39, 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 Days Inventory for an Industrial Products company?
The median Days Inventory among Industrial Products companies is 119.39, based on 2,972 companies in the industry. Companies in the top quartile (top 25%) have a Days Inventory significantly above this median, while those in the bottom quartile fall well below. However, Days Inventory should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. American Superconductor's current Days Inventory of 151.94 is 27.3% 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 Days Inventory mean?
A high Days Inventory can signal that a stock is expensive relative to its fundamentals. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on American Superconductor and its competitors. For the Industrial Products industry, the median Days Inventory is 119.39 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. American Superconductor's current Days Inventory is 151.94, which is 26% above median its own 10-year median of 120.86. 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 $40.42 — trading 31% above its estimated fair value. The current Days Inventory is 151.94, which is 26% above median its 10-year median of 120.86 and 27.3% above the Industrial Products industry median of 119.39. 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 Days Inventory calculated?
Days Inventory is calculated from a company's financial statements. For American Superconductor (AMSC), the current Days Inventory is 151.94 as of Mar. 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 $40.42 is trading 31% above its estimated GF Value™ of $30.86. GuruFocus considers American Superconductor to be Significantly Overvalued.

Key valuation signals for AMSC:

  • Days Inventory: 151.94 (26% above median its 10-year median of 120.86)
  • GF Value™: $30.86 vs. price of $40.42 (31% above fair value)
  • GF Score™: 78/100 with 7 warning signs
  • Industry Position: 27.3% above the Industrial Products median (#1848 of 2972)

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 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.
78GF Score

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

$40.42
Price
$30.86
GF Value