Nihon Seiko Co (TSE:5729) Days Inventory: 85.87 (As of Mar. 2026) — Near Median

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

TSE:5729 Nihon Seiko Co Ltd TSE:5729
77 GF Score
Price 円1,528.00
GF Value 円2,178.81
Valuation Significantly Undervalued
! 2 Warning Signs
View Full Analysis

What is Nihon Seiko Co Days Inventory?

Nihon Seiko Co TSE:5729 -2.24% 77 Days Inventory is 85.87 as of Mar. 2026, which is 5% above its 10-year median of 81.69. GuruFocus rates TSE:5729 with a GF Score™ of 77/100 and a GF Value™ of 円2,178.81 (Significantly Undervalued). The stock has 2 warning signs investors should review. Among 1,541 Chemicals companies, Nihon Seiko Co ranks worse than 56.26% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). Nihon Seiko Co's Average Total Inventories for the six months ended in Mar. 2026 was 円8,398 Mil. Nihon Seiko Co's Cost of Goods Sold for the six months ended in Mar. 2026 was 円17,848 Mil. Hence, Nihon Seiko Co's Days Inventory for the six months ended in Mar. 2026 was 85.87.

The historical rank and industry rank for Nihon Seiko Co's Days Inventory or its related term are showing as below:

TSE:5729' s Days Inventory Range Over the Past 10 Years
Min: 67.65   Med: 81.69   Max: 98.15
Current: 88.53

During the past 13 years, Nihon Seiko Co's highest Days Inventory was 98.15. The lowest was 67.65. And the median was 81.69.

TSE:5729's Days Inventory is ranked worse than
56.26% of 1541 companies
in the Chemicals industry
Industry Median: 80.51 vs TSE:5729: 88.53

Nihon Seiko Co's Days Inventory declined from Mar. 2025 (103.09) to Mar. 2026 (85.87).

Inventory Turnover measures how fast the company turns over its inventory within a year. Nihon Seiko Co's Inventory Turnover for the six months ended in Mar. 2026 was 2.13.

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. Nihon Seiko Co's Inventory-to-Revenue for the six months ended in Mar. 2026 was 0.42.


Nihon Seiko Co  (TSE:5729) 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.

Nihon Seiko Co's Inventory Turnover for the six 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.

Nihon Seiko Co's Inventory to Revenue for the six 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.


Nihon Seiko Co Days Inventory Related Terms


Nihon Seiko Co Days Inventory Historical Data

* Premium members only.

The historical data trend for Nihon Seiko Co'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.

Nihon Seiko Co Days Inventory Chart

Nihon Seiko Co Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Days Inventory
Get a 7-Day Free Trial Premium Member Only Premium Member Only 77.36 96.80 95.93 98.15 83.43

Nihon Seiko Co Semi-Annual Data
Sep16 Mar17 Sep17 Mar18 Sep18 Mar19 Sep19 Mar20 Sep20 Mar21 Sep21 Mar22 Sep22 Mar23 Sep23 Mar24 Sep24 Mar25 Sep25 Mar26
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 98.14 83.53 103.09 97.15 85.87

TSE:5729 vs DOW: Days Inventory Comparison

For the Chemicals subindustry, Nihon Seiko Co'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.


Nihon Seiko Co Days Inventory vs Chemicals Industry

For the Chemicals industry and Basic Materials sector, Nihon Seiko Co's Days Inventory distribution charts can be found below:

* The bar in red indicates where Nihon Seiko Co's Days Inventory falls into.


TSE:5729
77GF Score
Nihon Seiko Co Ltd TSE:5729
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Nihon Seiko Co Days Inventory Calculation

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

Nihon Seiko Co's Days Inventory for the fiscal year that ended in Mar. 2026 is calculated as

Days Inventory (A: Mar. 2026 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (A: Mar. 2025 ) + Total Inventories (A: Mar. 2026 )) / count ) / Cost of Goods Sold (A: Mar. 2026 )*Days in Period
=( (7328.826 + 7827.632) / 2 ) / 33155.204*365
=7578.229 / 33155.204*365
=83.43

Nihon Seiko Co's Days Inventory for the quarter that ended in Mar. 2026 is calculated as:

Days Inventory (Q: Mar. 2026 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (Q: Sep. 2025 ) + Total Inventories (Q: Mar. 2026 )) / count ) / Cost of Goods Sold (Q: Mar. 2026 )*Days in Period
=( (8968.474 + 7827.632) / 2 ) / 17847.864*365 / 2
=8398.053 / 17847.864*365 / 2
=85.87

* 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 85.87 mean?
Nihon Seiko Co (TSE:5729) has a Days Inventory of 85.87 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Nihon Seiko Co and its competitors. This is near median its historical median of 81.69. Over the past decade, Nihon Seiko Co's Days Inventory has ranged from 67.65 to 98.15. According to the industry distribution chart, Nihon Seiko Co ranks #867 out of 1541 companies in the Chemicals industry, placing it in the top 56.3%.
Is Nihon Seiko Co's Days Inventory too high?
Nihon Seiko Co's current Days Inventory of 85.87 is near median its 10-year median of 81.69. Over the past 10 years, this metric has ranged from a low of 67.65 to a high of 98.15. The Chemicals industry median Days Inventory is 80.51. Nihon Seiko Co's value of 85.87 is 6.7% above this industry median. Based on the distribution chart, Nihon Seiko Co ranks #867 out of 1541 companies in the Chemicals industry, which is below the industry midpoint. Overall, Nihon Seiko Co has a GF Score™ of 77/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Nihon Seiko Co's Days Inventory compare to DOW?
According to the Chemicals industry distribution chart, Nihon Seiko Co ranks #867 out of 1541 companies for Days Inventory. This places Nihon Seiko Co in the lower half of its industry. The industry median Days Inventory is 80.51. Nihon Seiko Co's value of 85.87 is 6.7% above this benchmark. Historically, Nihon Seiko Co's own Days Inventory has ranged from 67.65 to 98.15 over the past decade. While the company's 10-year median is 81.69 vs. the industry median of 80.51, Nihon Seiko Co 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 Chemicals company?
The median Days Inventory among Chemicals companies is 80.51, based on 1,541 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. Nihon Seiko Co's current Days Inventory of 85.87 is 6.7% 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 Nihon Seiko Co and its competitors. For the Chemicals industry, the median Days Inventory is 80.51 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Nihon Seiko Co's current Days Inventory is 85.87, which is near median its own 10-year median of 81.69. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Nihon Seiko Co stock overvalued right now?
Based on GuruFocus' analysis, Nihon Seiko Co (TSE:5729) is currently considered Significantly Undervalued. The stock's GF Value™ is 円2,178.81, compared to a current price of 円1,528.00 — trading 29.9% below its estimated fair value. The current Days Inventory is 85.87, which is near median its 10-year median of 81.69 and 6.7% above the Chemicals industry median of 80.51. Nihon Seiko Co's overall GF Score™ is 77/100 with 2 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 Nihon Seiko Co (TSE:5729), the current Days Inventory is 85.87 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 Nihon Seiko Co (TSE:5729) Overvalued in 2026?

Based on GuruFocus' analysis, Nihon Seiko Co stock appears to be undervalued. The current stock price of 円1,528.00 is trading 29.9% below its estimated GF Value™ of 円2,178.81. GuruFocus considers Nihon Seiko Co to be Significantly Undervalued.

Key valuation signals for TSE:5729:

  • Days Inventory: 85.87 (near median its 10-year median of 81.69)
  • GF Value™: 円2,178.81 vs. price of 円1,528.00 (29.9% below fair value)
  • GF Score™: 77/100 with 2 warning signs
  • Industry Position: 6.7% above the Chemicals median (#867 of 1541)

No single metric tells the full story. See the TSE:5729 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Nihon Seiko Co Business Description

Address 3-2 Shimomiyabi-cho, Shinjuku-ku, Tokyo, JPN, 162-0822
Nihon Seiko Co Ltd is engaged in the manufacture and sale of antimony products and metallic powder products in Japan. Its products include antimony trioxide, special treatment antimony trioxide, antimony metal sodium antimonite and antimony trisulfide.
77GF Score

Get the complete analysis for TSE:5729

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

円1,528.00
Price
円2,178.81
GF Value