IESVF (Invinity Energy Systems) Days Inventory: 133.99 (As of Dec. 2025) — 20% Below Median

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IESVF Invinity Energy Systems PLC IESVF
56 GF Score
Price $0.39
GF Value $0.12
Valuation Significantly Overvalued
! 6 Warning Signs
View Full Analysis

What is Invinity Energy Systems Days Inventory?

Invinity Energy Systems IESVF +2.04% 56 Days Inventory is 133.99 as of Dec. 2025, which is 20% below its 10-year median of 168.18. GuruFocus rates IESVF with a GF Score™ of 56/100 and a GF Value™ of $0.12 (Significantly Overvalued). The stock has 6 warning signs investors should review. Among 2,968 Industrial Products companies, Invinity Energy Systems ranks worse than 77.09% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). Invinity Energy Systems's Average Total Inventories for the six months ended in Dec. 2025 was $8.71 Mil. Invinity Energy Systems's Cost of Goods Sold for the six months ended in Dec. 2025 was $11.86 Mil. Hence, Invinity Energy Systems's Days Inventory for the six months ended in Dec. 2025 was 133.99.

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

IESVF' s Days Inventory Range Over the Past 10 Years
Min: 88.31   Med: 168.18   Max: 974.16
Current: 205.13

During the past 8 years, Invinity Energy Systems's highest Days Inventory was 974.16. The lowest was 88.31. And the median was 168.18.

IESVF's Days Inventory is ranked worse than
77.09% of 2968 companies
in the Industrial Products industry
Industry Median: 119.51 vs IESVF: 205.13

Invinity Energy Systems's Days Inventory declined from Dec. 2024 (161.36) to Dec. 2025 (133.99).

Inventory Turnover measures how fast the company turns over its inventory within a year. Invinity Energy Systems's Inventory Turnover for the six months ended in Dec. 2025 was 1.36.

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. Invinity Energy Systems's Inventory-to-Revenue for the six months ended in Dec. 2025 was 0.82.


Invinity Energy Systems  (OTCPK:IESVF) 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.

Invinity Energy Systems's Inventory Turnover for the six months ended in Dec. 2025 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.

Invinity Energy Systems's Inventory to Revenue for the six months ended in Dec. 2025 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.


Invinity Energy Systems Days Inventory Related Terms


Invinity Energy Systems Days Inventory Historical Data

* Premium members only.

The historical data trend for Invinity Energy 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.

Invinity Energy Systems Days Inventory Chart

Invinity Energy Systems Annual Data
Trend Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Days Inventory
Get a 7-Day Free Trial 184.99 1,007.41 91.71 193.57 133.31

Invinity Energy Systems Semi-Annual Data
Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
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 87.97 255.76 161.36 651.06 133.99

IESVF vs VRT, BE: Days Inventory Comparison

For the Electrical Equipment & Parts subindustry, Invinity Energy 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.


Invinity Energy Systems Days Inventory vs Industrial Products Industry

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

* The bar in red indicates where Invinity Energy Systems's Days Inventory falls into.


IESVF
56GF Score
Invinity Energy Systems PLC IESVF
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Invinity Energy Systems Days Inventory Calculation

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

Invinity Energy Systems's Days Inventory for the fiscal year that ended in Dec. 2025 is calculated as

Days Inventory (A: Dec. 2025 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (A: Dec. 2024 ) + Total Inventories (A: Dec. 2025 )) / count ) / Cost of Goods Sold (A: Dec. 2025 )*Days in Period
=( (7.273 + 3.529) / 2 ) / 14.788*365
=5.401 / 14.788*365
=133.31

Invinity Energy Systems's Days Inventory for the quarter that ended in Dec. 2025 is calculated as:

Days Inventory (Q: Dec. 2025 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (Q: Jun. 2025 ) + Total Inventories (Q: Dec. 2025 )) / count ) / Cost of Goods Sold (Q: Dec. 2025 )*Days in Period
=( (13.889 + 3.529) / 2 ) / 11.862*365 / 2
=8.709 / 11.862*365 / 2
=133.99

* 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 133.99 mean?
Invinity Energy Systems (IESVF) has a Days Inventory of 133.99 as of Dec. 2025. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Invinity Energy Systems and its competitors. This is 20% below median its historical median of 168.18. Over the past decade, Invinity Energy Systems' Days Inventory has ranged from 88.31 to 974.16. According to the industry distribution chart, Invinity Energy Systems ranks #2288 out of 2968 companies in the Industrial Products industry, placing it in the top 77.1%.
Is Invinity Energy Systems' Days Inventory too high?
Invinity Energy Systems' current Days Inventory of 133.99 is 20% below median its 10-year median of 168.18. Over the past 10 years, this metric has ranged from a low of 88.31 to a high of 974.16. The Industrial Products industry median Days Inventory is 119.51. Invinity Energy Systems' value of 133.99 is 12.1% above this industry median. Based on the distribution chart, Invinity Energy Systems ranks #2288 out of 2968 companies in the Industrial Products industry, which is in the bottom quartile relative to peers. Overall, Invinity Energy Systems has a GF Score™ of 56/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Invinity Energy Systems' Days Inventory compare to VRT and BE?
According to the Industrial Products industry distribution chart, Invinity Energy Systems ranks #2288 out of 2968 companies for Days Inventory. This places Invinity Energy Systems in the lower half of its industry. The industry median Days Inventory is 119.51. Invinity Energy Systems' value of 133.99 is 12.1% above this benchmark. Historically, Invinity Energy Systems' own Days Inventory has ranged from 88.31 to 974.16 over the past decade. While the company's 10-year median is 168.18 vs. the industry median of 119.51, Invinity Energy 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 an Industrial Products company?
The median Days Inventory among Industrial Products companies is 119.51, based on 2,968 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. Invinity Energy Systems's current Days Inventory of 133.99 is 12.1% 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 Invinity Energy Systems and its competitors. For the Industrial Products industry, the median Days Inventory is 119.51 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Invinity Energy Systems's current Days Inventory is 133.99, which is 20% below median its own 10-year median of 168.18. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Invinity Energy Systems stock overvalued right now?
Based on GuruFocus' analysis, Invinity Energy Systems (IESVF) is currently considered Significantly Overvalued. The stock's GF Value™ is $0.12, compared to a current price of $0.39 — trading 220.8% above its estimated fair value. The current Days Inventory is 133.99, which is 20% below median its 10-year median of 168.18 and 12.1% above the Industrial Products industry median of 119.51. Invinity Energy Systems' overall GF Score™ is 56/100 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 Invinity Energy Systems (IESVF), the current Days Inventory is 133.99 as of Dec. 2025. 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 Invinity Energy Systems (IESVF) Overvalued in 2026?

Based on GuruFocus' analysis, Invinity Energy Systems stock appears to be overvalued. The current stock price of $0.39 is trading 220.8% above its estimated GF Value™ of $0.12. GuruFocus considers Invinity Energy Systems to be Significantly Overvalued.

Key valuation signals for IESVF:

  • Days Inventory: 133.99 (20% below median its 10-year median of 168.18)
  • GF Value™: $0.12 vs. price of $0.39 (220.8% above fair value)
  • GF Score™: 56/100 with 6 warning signs
  • Industry Position: 12.1% above the Industrial Products median (#2288 of 2968)

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


Invinity Energy Systems Business Description

Other Exchanges IES:UKA10:Germany
Address 24 Chiswell Street, Office 3.03, 3rd Floor, London, GBR, EC1Y 4TY
Invinity Energy Systems PLC operates in the manufacturing of vanadium flow battery systems and their related installation and other services. Its vanadium flow batteries are a form of heavy-duty, stationary energy storage, used in high-utilization applications such as being coupled with industrial-scale solar generation for distributed, low-carbon energy projects. The company's flow battery systems are ideal for commercial and industrial sites, grid network infrastructure projects, and off-grid applications, either standalone or alongside renewable energy such as solar PV. It generates the majority of its revenue from the sale of Battery systems and associated control systems.
56GF Score

Get the complete analysis for IESVF

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

$0.39
Price
$0.12
GF Value