Aspen AerogelsASPN -0.88%67 Days Inventory is 94.08 as of Mar. 2026, which is 125% above its 10-year median of 41.88. GuruFocus rates ASPN with a GF Score™ of 67/100 and a GF Value™ of $5.12 (Fairly Valued). The stock has 4 warning signs investors should review. Among 1,486 Construction companies, Aspen Aerogels ranks worse than 62.05% on this metric.
Days Inventory is also known as Days Sales of Inventory (DSI). Aspen Aerogels's Average Total Inventories for the
three
months ended in Mar. 2026 was $34.7 Mil. Aspen Aerogels's Cost of Goods Sold for the
three
months ended in Mar. 2026 was $33.6 Mil.
Hence, Aspen Aerogels's Days Inventory for the
three
months ended in Mar. 2026 was 94.08.
The historical rank and industry rank for Aspen Aerogels's Days Inventory or its related term are showing as below:
ASPN'
s Days Inventory Range Over the Past 10 Years
Min: 25.96 Med: 41.88 Max: 79.62
Current: 79.62
During the past 13 years, Aspen Aerogels's highest Days Inventory was 79.62. The lowest was 25.96. And the median was 41.88.
ASPN's Days Inventory is ranked worse than 62.05% of 1486
companies
in the Construction industry
Industry Median: 50.81
vs ASPN: 79.62
Aspen Aerogels's Days Inventory
increased
from Mar. 2025 (85.10) to Mar. 2026 (94.08).
It might indicate that Aspen Aerogels's sales slowed down.
Inventory Turnover measures how fast the company turns over its inventory within a year.
Aspen Aerogels's Inventory Turnover for the
three
months ended in Mar. 2026 was 0.97.
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.
Aspen Aerogels's Inventory-to-Revenue for the
three
months ended in Mar. 2026 was 0.91.
Aspen Aerogels (NYSE:ASPN) 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.
Aspen Aerogels'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.
Aspen Aerogels'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.
Aspen Aerogels Days Inventory Related Terms
Aspen Aerogels Days Inventory Historical Data
* Premium members only.
The historical data trend for Aspen Aerogels'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.
ASPN vs SWIM, JLHL, JBI: Days Inventory Comparison
For the Building Products & Equipment subindustry, Aspen Aerogels'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.
Aspen Aerogels Days Inventory vs Construction Industry
For the Construction industry and Industrials sector, Aspen Aerogels's Days Inventory distribution charts can be found below:
* The bar in red indicates where Aspen Aerogels's Days Inventory falls into.
* 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.
Aspen Aerogels (ASPN) has a Days Inventory of 94.08 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Aspen Aerogels and its competitors. This is 125% above median its historical median of 41.88. Over the past decade, Aspen Aerogels' Days Inventory has ranged from 25.96 to 79.62. According to the industry distribution chart, Aspen Aerogels ranks #922 out of 1486 companies in the Construction industry, placing it in the top 62%.
Is Aspen Aerogels' Days Inventory too high?
Aspen Aerogels' current Days Inventory of 94.08 is 125% above median its 10-year median of 41.88. Over the past 10 years, this metric has ranged from a low of 25.96 to a high of 79.62. The Construction industry median Days Inventory is 50.81. Aspen Aerogels' value of 94.08 is 85.2% above this industry median. Based on the distribution chart, Aspen Aerogels ranks #922 out of 1486 companies in the Construction industry, which is below the industry midpoint. Overall, Aspen Aerogels has a GF Score™ of 67/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Aspen Aerogels' Days Inventory compare to SWIM and JLHL?
According to the Construction industry distribution chart, Aspen Aerogels ranks #922 out of 1486 companies for Days Inventory. This places Aspen Aerogels in the lower half of its industry. The industry median Days Inventory is 50.81. Aspen Aerogels' value of 94.08 is 85.2% above this benchmark. Historically, Aspen Aerogels' own Days Inventory has ranged from 25.96 to 79.62 over the past decade. While the company's 10-year median is 41.88 vs. the industry median of 50.81, Aspen Aerogels 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 a Construction company?
The median Days Inventory among Construction companies is 50.81, based on 1,486 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. Aspen Aerogels's current Days Inventory of 94.08 is 85.2% 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 Aspen Aerogels and its competitors. For the Construction industry, the median Days Inventory is 50.81 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Aspen Aerogels's current Days Inventory is 94.08, which is 125% above median its own 10-year median of 41.88. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Aspen Aerogels stock overvalued right now?
Based on GuruFocus' analysis, Aspen Aerogels (ASPN) is currently considered Fairly Valued. The stock's GF Value™ is $5.12, compared to a current price of $5.63 — trading 10% above its estimated fair value. The current Days Inventory is 94.08, which is 125% above median its 10-year median of 41.88 and 85.2% above the Construction industry median of 50.81. Aspen Aerogels' overall GF Score™ is 67/100 with 4 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 Aspen Aerogels (ASPN), the current Days Inventory is 94.08 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 Aspen Aerogels (ASPN) Overvalued in 2026?
Based on GuruFocus' analysis, Aspen Aerogels stock appears to be overvalued.
The current stock price of $5.63 is trading 10% above its estimated GF Value™ of $5.12.
GuruFocus considers Aspen Aerogels to be Fairly Valued.
Key valuation signals for ASPN:
Days Inventory: 94.08 (125% above median its 10-year median of 41.88)
GF Value™: $5.12 vs. price of $5.63 (10% above fair value)
Industry Position: 85.2% above the Construction median (#922 of 1486)
No single metric tells the full story. See the ASPN stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Aspen Aerogels Inc is an aerogel technology company that designs, develops, and manufactures high-performance aerogel insulation used in the energy industrial and sustainable insulation markets. The company also conducts research and development related to aerogel technology, supported by funding from several agencies of the United States of America government and other institutions in the form of research and development contracts. It is engaged in two operating segment Energy Industrial and Thermal Barrier. Geographically, it operates in the U.S. and also has a presence in other International countries. It generates the majority of its revenue from the Thermal Barrier segment and the United States market. Some of its products include Pyrogel XTE, Cryogel Z, Spaceloft Subsea, and others.
67GF Score
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