ZentekZTEK +1.04%16 Days Inventory is 33.29 as of Mar. 2026, which is 92% below its 10-year median of 392.12. GuruFocus rates ZTEK with a GF Score™ of 16/100. The stock has 6 warning signs investors should review. Among 788 Medical Devices & Instruments companies, Zentek ranks better than 59.52% on this metric.
Days Inventory is also known as Days Sales of Inventory (DSI). Zentek's Average Total Inventories for the
three
months ended in Mar. 2026 was $0.46 Mil. Zentek's Cost of Goods Sold for the
three
months ended in Mar. 2026 was $1.25 Mil.
Hence, Zentek's Days Inventory for the
three
months ended in Mar. 2026 was 33.29.
The historical rank and industry rank for Zentek's Days Inventory or its related term are showing as below:
ZTEK'
s Days Inventory Range Over the Past 10 Years
Min: 129.61 Med: 392.12 Max: 654.62
Current: 155.8
During the past 13 years, Zentek's highest Days Inventory was 654.62. The lowest was 129.61. And the median was 392.12.
ZTEK's Days Inventory is ranked better than 59.52% of 788
companies
in the Medical Devices & Instruments industry
Industry Median: 179.115
vs ZTEK: 155.80
Zentek's Days Inventory
declined
from Mar. 2025 (319.63) to Mar. 2026 (33.29).
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.
Zentek's Inventory Turnover for the
three
months ended in Mar. 2026 was 2.74.
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.
Zentek's Inventory-to-Revenue for the
three
months ended in Mar. 2026 was 16.89.
Zentek (NAS:ZTEK) 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.
Zentek'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.
Zentek'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.
Zentek Days Inventory Related Terms
Zentek Days Inventory Historical Data
* Premium members only.
The historical data trend for Zentek'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.
ZTEK vs ISRG, BDX, MDLN: Days Inventory Comparison
For the Medical Instruments & Supplies subindustry, Zentek'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.
Zentek Days Inventory vs Medical Devices & Instruments Industry
For the Medical Devices & Instruments industry and Healthcare sector, Zentek's Days Inventory distribution charts can be found below:
* The bar in red indicates where Zentek'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.
Zentek (ZTEK) has a Days Inventory of 33.29 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Zentek and its competitors. This is 92% below median its historical median of 392.12. Over the past decade, Zentek's Days Inventory has ranged from 129.61 to 654.62. According to the industry distribution chart, Zentek ranks #319 out of 788 companies in the Medical Devices & Instruments industry, placing it in the top 40.5%.
Is Zentek's Days Inventory too high?
Zentek's current Days Inventory of 33.29 is 92% below median its 10-year median of 392.12. Over the past 10 years, this metric has ranged from a low of 129.61 to a high of 654.62. The Medical Devices & Instruments industry median Days Inventory is 179.12. Zentek's value of 33.29 is 81.4% below this industry median. Based on the distribution chart, Zentek ranks #319 out of 788 companies in the Medical Devices & Instruments industry, which is above the industry midpoint. Overall, Zentek has a GF Score™ of 16/100, reflecting its overall financial health beyond just this single metric.
How does Zentek's Days Inventory compare to ISRG and BDX?
According to the Medical Devices & Instruments industry distribution chart, Zentek ranks #319 out of 788 companies for Days Inventory. This puts Zentek in the upper half of its industry. The industry median Days Inventory is 179.12. Zentek's value of 33.29 is 81.4% below this benchmark. Historically, Zentek's own Days Inventory has ranged from 129.61 to 654.62 over the past decade. While the company's 10-year median is 392.12 vs. the industry median of 179.12, Zentek has consistently been below 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 Medical Devices & Instruments company?
The median Days Inventory among Medical Devices & Instruments companies is 179.12, based on 788 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. Zentek's current Days Inventory of 33.29 is 81.4% below 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 Zentek and its competitors. For the Medical Devices & Instruments industry, the median Days Inventory is 179.12 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Zentek's current Days Inventory is 33.29, which is 92% below median its own 10-year median of 392.12. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Zentek stock overvalued right now?
Zentek (ZTEK) has a current Days Inventory of 33.29. The current Days Inventory is 33.29, which is 92% below median its 10-year median of 392.12 and 81.4% below the Medical Devices & Instruments industry median of 179.12. Zentek's overall GF Score™ is 16/100 with 6 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 Zentek (ZTEK), the current Days Inventory is 33.29 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.
Zentek Ltd is an IP development and commercialization company focused on next-gen healthcare solutions in the areas of prevention, detection, and treatment. It is focused on commercializing ZENGuard, a patent-pending coating with 99% antimicrobial activity, including against COVID-19, and the potential to use similar compounds as pharmaceutical products against infectious diseases.
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