AinosSTU:FZX0 24 Days Inventory is 23,998.75 as of Mar. 2026, which is 16372% above its 10-year median of 145.69. GuruFocus rates STU:FZX0 with a GF Score™ of 24/100 and a GF Value™ of €0.90. The stock has 9 warning signs investors should review. Among 2,416 Hardware companies, Ainos ranks worse than 99.96% on this metric.
Days Inventory is also known as Days Sales of Inventory (DSI). Ainos's Average Total Inventories for the
three
months ended in Mar. 2026 was €0.26 Mil. Ainos's Cost of Goods Sold for the
three
months ended in Mar. 2026 was €0.00 Mil.
Hence, Ainos's Days Inventory for the
three
months ended in Mar. 2026 was 23,998.75.
The historical rank and industry rank for Ainos's Days Inventory or its related term are showing as below:
STU:FZX0'
s Days Inventory Range Over the Past 10 Years
Min: 102.68 Med: 145.69 Max: 26304.33
Current: 26304.33
During the past 13 years, Ainos's highest Days Inventory was 26304.33. The lowest was 102.68. And the median was 145.69.
STU:FZX0's Days Inventory is ranked worse than 99.96% of 2416
companies
in the Hardware industry
Industry Median: 94.31
vs STU:FZX0: 26304.33
Ainos's Days Inventory
increased
from Mar. 2025 (721.95) to Mar. 2026 (23,998.75).
It might indicate that Ainos's sales slowed down.
Warning Sign:
If a company builds up inventory, it may mean it is having difficulties selling its goods.
Inventory Turnover measures how fast the company turns over its inventory within a year.
Ainos's Inventory Turnover for the
three
months ended in Mar. 2026 was 0.00.
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.
Ainos (STU:FZX0) 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.
Ainos'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.
Ainos'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.
Ainos Days Inventory Related Terms
Ainos Days Inventory Historical Data
* Premium members only.
The historical data trend for Ainos'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.
STU:FZX0 vs QURT, ASTC, LCTC: Days Inventory Comparison
For the Scientific & Technical Instruments subindustry, Ainos'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.
Ainos Days Inventory vs Hardware Industry
For the Hardware industry and Technology sector, Ainos's Days Inventory distribution charts can be found below:
* The bar in red indicates where Ainos'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.
Ainos (STU:FZX0) has a Days Inventory of 23,998.75 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Ainos and its competitors. This is 16372% above median its historical median of 145.69. Over the past decade, Ainos' Days Inventory has ranged from 102.68 to 26,304.33. According to the industry distribution chart, Ainos ranks #2415 out of 2416 companies in the Hardware industry.
Is Ainos' Days Inventory too high?
Ainos' current Days Inventory of 23,998.75 is 16372% above median its 10-year median of 145.69. Over the past 10 years, this metric has ranged from a low of 102.68 to a high of 26,304.33. The Hardware industry median Days Inventory is 94.31. Ainos' value of 23,998.75 is 25346.7% above this industry median. Based on the distribution chart, Ainos ranks #2415 out of 2416 companies in the Hardware industry, which is in the bottom quartile relative to peers. Overall, Ainos has a GF Score™ of 24/100, reflecting its overall financial health beyond just this single metric.
How does Ainos' Days Inventory compare to QURT and ASTC?
According to the Hardware industry distribution chart, Ainos ranks #2415 out of 2416 companies for Days Inventory. This places Ainos in the lower half of its industry. The industry median Days Inventory is 94.31. Ainos' value of 23,998.75 is 25346.7% above this benchmark. Historically, Ainos' own Days Inventory has ranged from 102.68 to 26,304.33 over the past decade. While the company's 10-year median is 145.69 vs. the industry median of 94.31, Ainos 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 Hardware company?
The median Days Inventory among Hardware companies is 94.31, based on 2,416 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. Ainos's current Days Inventory of 23,998.75 is 25346.7% 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 Ainos and its competitors. For the Hardware industry, the median Days Inventory is 94.31 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Ainos's current Days Inventory is 23,998.75, which is 16372% above median its own 10-year median of 145.69. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ainos stock overvalued right now?
Ainos (STU:FZX0) has a current Days Inventory of 23,998.75. The stock's GF Value™ is €0.90, compared to a current price of €12.50 — trading 1288.9% above its estimated fair value. The current Days Inventory is 23,998.75, which is 16372% above median its 10-year median of 145.69 and 25346.7% above the Hardware industry median of 94.31. Ainos' overall GF Score™ is 24/100 with 9 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 Ainos (STU:FZX0), the current Days Inventory is 23,998.75 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 Ainos (STU:FZX0) Overvalued in 2026?
Based on GuruFocus' analysis, Ainos stock appears to be overvalued.
The current stock price of €12.50 is trading 1288.9% above its estimated GF Value™ of €0.90.
Key valuation signals for STU:FZX0:
Days Inventory: 23,998.75 (16372% above median its 10-year median of 145.69)
GF Value™: €0.90 vs. price of €12.50 (1288.9% above fair value)
Industry Position: 25346.7% above the Hardware median (#2415 of 2416)
No single metric tells the full story. See the STU:FZX0 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Ainos Inc is a dual-platform company advancing artificial intelligence based smelltech technologies and immune therapeutics. Its primary strategic focus is the commercialization of its proprietary scent digitization platform, AI Nose, while the company also continue to develop therapeutic assets based on its low-dose oral interferon program, VELDONA. Its core technology platform, AI Nose, is an AI-based electronic olfaction system that integrates gas sensor arrays with proprietary artificial intelligence models, which it refers to as a smell language model (SLM), to digitize scent and volatile organic compound (VOC) signals into Smell ID, a machine-readable data format.
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