AEHR (Aehr Test Systems) Days Inventory: 551.08 (As of Feb. 2026) — 135% Above Median


AEHR Aehr Test Systems AEHR
62 GF Score
Price $88.00
GF Value $14.36
Valuation Significantly Overvalued
! 5 Warning Signs
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What is Aehr Test Systems Days Inventory?

Aehr Test Systems AEHR -8.39% 62 Days Inventory is 551.08 as of Feb. 2026, which is 135% above its 10-year median of 234.60. GuruFocus rates AEHR with a GF Score™ of 62/100 and a GF Value™ of $14.36 (Significantly Overvalued). The stock has 5 warning signs investors should review. Among 981 Semiconductors companies, Aehr Test Systems ranks worse than 94.7% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). Aehr Test Systems's Average Total Inventories for the three months ended in Feb. 2026 was $41.94 Mil. Aehr Test Systems's Cost of Goods Sold for the three months ended in Feb. 2026 was $6.95 Mil. Hence, Aehr Test Systems's Days Inventory for the three months ended in Feb. 2026 was 551.08.

The historical rank and industry rank for Aehr Test Systems's Days Inventory or its related term are showing as below:

AEHR' s Days Inventory Range Over the Past 10 Years
Min: 160.57   Med: 234.6   Max: 489.1
Current: 489.1

During the past 13 years, Aehr Test Systems's highest Days Inventory was 489.10. The lowest was 160.57. And the median was 234.60.

AEHR's Days Inventory is ranked worse than
94.7% of 981 companies
in the Semiconductors industry
Industry Median: 111.84 vs AEHR: 489.10

Aehr Test Systems's Days Inventory increased from Feb. 2025 (353.16) to Feb. 2026 (551.08). It might indicate that Aehr Test Systems's sales slowed down.

Inventory Turnover measures how fast the company turns over its inventory within a year. Aehr Test Systems's Inventory Turnover for the three months ended in Feb. 2026 was 0.17.

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. Aehr Test Systems's Inventory-to-Revenue for the three months ended in Feb. 2026 was 4.07.


Aehr Test Systems  (NAS:AEHR) 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.

Aehr Test Systems's Inventory Turnover for the three months ended in Feb. 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.

Aehr Test Systems's Inventory to Revenue for the three months ended in Feb. 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.


Aehr Test Systems Days Inventory Related Terms


Aehr Test Systems Days Inventory Historical Data

* Premium members only.

The historical data trend for Aehr Test Systems'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.

Aehr Test Systems Days Inventory Chart

Aehr Test Systems Annual Data
Trend May16 May17 May18 May19 May20 May21 May22 May23 May24 May25
Days Inventory
Get a 7-Day Free Trial Premium Member Only Premium Member Only 290.78 160.57 220.71 332.64 413.95

Aehr Test Systems Quarterly Data
May21 Aug21 Nov21 Feb22 May22 Aug22 Nov22 Feb23 May23 Aug23 Nov23 Feb24 May24 Aug24 Nov24 Feb25 May25 Aug25 Nov25 Feb26
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 353.16 391.91 527.61 525.72 551.08

AEHR vs COHU, AMBA, ICHR: Days Inventory Comparison

For the Semiconductor Equipment & Materials subindustry, Aehr Test Systems'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.


Aehr Test Systems Days Inventory vs Semiconductors Industry

For the Semiconductors industry and Technology sector, Aehr Test Systems's Days Inventory distribution charts can be found below:

* The bar in red indicates where Aehr Test Systems's Days Inventory falls into.


AEHR
62GF Score
Aehr Test Systems AEHR
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
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Aehr Test Systems Days Inventory Calculation

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

Aehr Test Systems's Days Inventory for the fiscal year that ended in May. 2025 is calculated as

Days Inventory (A: May. 2025 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (A: May. 2024 ) + Total Inventories (A: May. 2025 )) / count ) / Cost of Goods Sold (A: May. 2025 )*Days in Period
=( (37.47 + 41.997) / 2 ) / 35.035*365
=39.7335 / 35.035*365
=413.95

Aehr Test Systems's Days Inventory for the quarter that ended in Feb. 2026 is calculated as:

Days Inventory (Q: Feb. 2026 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (Q: Nov. 2025 ) + Total Inventories (Q: Feb. 2026 )) / count ) / Cost of Goods Sold (Q: Feb. 2026 )*Days in Period
=( (42.723 + 41.162) / 2 ) / 6.945*365 / 4
=41.9425 / 6.945*365 / 4
=551.08

* 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 551.08 mean?
Aehr Test Systems (AEHR) has a Days Inventory of 551.08 as of Feb. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Aehr Test Systems and its competitors. This is 135% above median its historical median of 234.60. Over the past decade, Aehr Test Systems' Days Inventory has ranged from 160.57 to 489.10. According to the industry distribution chart, Aehr Test Systems ranks #929 out of 981 companies in the Semiconductors industry, placing it in the top 94.7%.
Is Aehr Test Systems' Days Inventory too high?
Aehr Test Systems' current Days Inventory of 551.08 is 135% above median its 10-year median of 234.60. Over the past 10 years, this metric has ranged from a low of 160.57 to a high of 489.10. The Semiconductors industry median Days Inventory is 111.84. Aehr Test Systems' value of 551.08 is 392.7% above this industry median. Based on the distribution chart, Aehr Test Systems ranks #929 out of 981 companies in the Semiconductors industry, which is in the bottom quartile relative to peers. Overall, Aehr Test Systems has a GF Score™ of 62/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Aehr Test Systems' Days Inventory compare to COHU and AMBA?
According to the Semiconductors industry distribution chart, Aehr Test Systems ranks #929 out of 981 companies for Days Inventory. This places Aehr Test Systems in the lower half of its industry. The industry median Days Inventory is 111.84. Aehr Test Systems' value of 551.08 is 392.7% above this benchmark. Historically, Aehr Test Systems' own Days Inventory has ranged from 160.57 to 489.10 over the past decade. While the company's 10-year median is 234.60 vs. the industry median of 111.84, Aehr Test Systems 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 Semiconductors company?
The median Days Inventory among Semiconductors companies is 111.84, based on 981 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. Aehr Test Systems's current Days Inventory of 551.08 is 392.7% 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 Aehr Test Systems and its competitors. For the Semiconductors industry, the median Days Inventory is 111.84 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Aehr Test Systems's current Days Inventory is 551.08, which is 135% above median its own 10-year median of 234.60. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Aehr Test Systems stock overvalued right now?
Based on GuruFocus' analysis, Aehr Test Systems (AEHR) is currently considered Significantly Overvalued. The stock's GF Value™ is $14.36, compared to a current price of $88.00 — trading 512.8% above its estimated fair value. The current Days Inventory is 551.08, which is 135% above median its 10-year median of 234.60 and 392.7% above the Semiconductors industry median of 111.84. Aehr Test Systems' overall GF Score™ is 62/100 with 5 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 Aehr Test Systems (AEHR), the current Days Inventory is 551.08 as of Feb. 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 Aehr Test Systems (AEHR) Overvalued in 2026?

Based on GuruFocus' analysis, Aehr Test Systems stock appears to be overvalued. The current stock price of $88.00 is trading 512.8% above its estimated GF Value™ of $14.36. GuruFocus considers Aehr Test Systems to be Significantly Overvalued.

Key valuation signals for AEHR:

  • Days Inventory: 551.08 (135% above median its 10-year median of 234.60)
  • GF Value™: $14.36 vs. price of $88.00 (512.8% above fair value)
  • GF Score™: 62/100 with 5 warning signs
  • Industry Position: 392.7% above the Semiconductors median (#929 of 981)

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


Aehr Test Systems Business Description

Other Exchanges AYB:Germany
Address 400 Kato Terrace, Fremont, CA, USA, 94539
Aehr Test Systems is engaged in test systems for burning-in and testing logic, optical, and memory integrated circuits. Increased quality and reliability needs of the Automotive and Mobility integrated circuit markets. The Company operates in one business segment, the designing, manufacturing, marketing and selling of advanced test and burn-in products to the semiconductor manufacturing industry in several geographic areas. The company provides production solutions across the product manufacturing flow to improve yield and reliability and has developed and introduced several inventive products, including the ABTSTM and FOX-PTM families of test and burn-in systems and FOX WaferPakTM Aligner, FOX-XP WaferPak Contactor, FOX DiePak Carrier and FOX DiePak Loader.
62GF Score

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

$88.00
Price
$14.36
GF Value