Tokyo Electron (STU:TKY) Days Inventory: 173.76 (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.

STU:TKY Tokyo Electron Ltd STU:TKY
81 GF Score
Price €381.05
GF Value €169.67
Valuation Significantly Overvalued
! 8 Warning Signs
View Full Analysis

What is Tokyo Electron Days Inventory?

Tokyo Electron STU:TKY -1.03% 81 Days Inventory is 173.76 as of Mar. 2026, which is 0% above its 10-year median of 173.05. GuruFocus rates STU:TKY with a GF Score™ of 81/100 and a GF Value™ of €169.67 (Significantly Overvalued). The stock has 8 warning signs investors should review. Among 983 Semiconductors companies, Tokyo Electron ranks worse than 78.13% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). Tokyo Electron's Average Total Inventories for the three months ended in Mar. 2026 was €3,930 Mil. Tokyo Electron's Cost of Goods Sold for the three months ended in Mar. 2026 was €2,064 Mil. Hence, Tokyo Electron's Days Inventory for the three months ended in Mar. 2026 was 173.76.

The historical rank and industry rank for Tokyo Electron's Days Inventory or its related term are showing as below:

STU:TKY' s Days Inventory Range Over the Past 10 Years
Min: 148.61   Med: 173.05   Max: 258.2
Current: 200.32

During the past 13 years, Tokyo Electron's highest Days Inventory was 258.20. The lowest was 148.61. And the median was 173.05.

STU:TKY's Days Inventory is ranked worse than
78.13% of 983 companies
in the Semiconductors industry
Industry Median: 112.18 vs STU:TKY: 200.32

Tokyo Electron's Days Inventory declined from Mar. 2025 (200.39) to Mar. 2026 (173.76).

Inventory Turnover measures how fast the company turns over its inventory within a year. Tokyo Electron's Inventory Turnover for the three months ended in Mar. 2026 was 0.53.

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. Tokyo Electron's Inventory-to-Revenue for the three months ended in Mar. 2026 was 1.01.


Tokyo Electron  (STU:TKY) 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.

Tokyo Electron'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.

Tokyo Electron'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.


Tokyo Electron Days Inventory Related Terms


Tokyo Electron Days Inventory Historical Data

* Premium members only.

The historical data trend for Tokyo Electron'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.

Tokyo Electron Days Inventory Chart

Tokyo Electron 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 149.24 174.58 274.61 213.57 213.96

Tokyo Electron Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 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 200.39 236.42 199.44 214.01 173.76

STU:TKY vs AMAT, LRCX, KLAC: Days Inventory Comparison

For the Semiconductor Equipment & Materials subindustry, Tokyo Electron'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.


Tokyo Electron Days Inventory vs Semiconductors Industry

For the Semiconductors industry and Technology sector, Tokyo Electron's Days Inventory distribution charts can be found below:

* The bar in red indicates where Tokyo Electron's Days Inventory falls into.


STU:TKY
81GF Score
Tokyo Electron Ltd STU:TKY
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Tokyo Electron Days Inventory Calculation

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

Tokyo Electron'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
=( (4648.805 + 3887.288) / 2 ) / 7280.818*365
=4268.0465 / 7280.818*365
=213.96

Tokyo Electron'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: Dec. 2025 ) + Total Inventories (Q: Mar. 2026 )) / count ) / Cost of Goods Sold (Q: Mar. 2026 )*Days in Period
=( (3973.095 + 3887.288) / 2 ) / 2063.961*365 / 4
=3930.1915 / 2063.961*365 / 4
=173.76

* 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 173.76 mean?
Tokyo Electron (STU:TKY) has a Days Inventory of 173.76 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Tokyo Electron and its competitors. This is near median its historical median of 173.05. Over the past decade, Tokyo Electron's Days Inventory has ranged from 148.61 to 258.20. According to the industry distribution chart, Tokyo Electron ranks #768 out of 983 companies in the Semiconductors industry, placing it in the top 78.1%.
Is Tokyo Electron's Days Inventory too high?
Tokyo Electron's current Days Inventory of 173.76 is near median its 10-year median of 173.05. Over the past 10 years, this metric has ranged from a low of 148.61 to a high of 258.20. The Semiconductors industry median Days Inventory is 112.18. Tokyo Electron's value of 173.76 is 54.9% above this industry median. Based on the distribution chart, Tokyo Electron ranks #768 out of 983 companies in the Semiconductors industry, which is in the bottom quartile relative to peers. Overall, Tokyo Electron has a GF Score™ of 81/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Tokyo Electron's Days Inventory compare to AMAT and LRCX?
According to the Semiconductors industry distribution chart, Tokyo Electron ranks #768 out of 983 companies for Days Inventory. This places Tokyo Electron in the lower half of its industry. The industry median Days Inventory is 112.18. Tokyo Electron's value of 173.76 is 54.9% above this benchmark. Historically, Tokyo Electron's own Days Inventory has ranged from 148.61 to 258.20 over the past decade. While the company's 10-year median is 173.05 vs. the industry median of 112.18, Tokyo Electron 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 112.18, based on 983 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. Tokyo Electron's current Days Inventory of 173.76 is 54.9% 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 Tokyo Electron and its competitors. For the Semiconductors industry, the median Days Inventory is 112.18 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Tokyo Electron's current Days Inventory is 173.76, which is near median its own 10-year median of 173.05. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tokyo Electron stock overvalued right now?
Based on GuruFocus' analysis, Tokyo Electron (STU:TKY) is currently considered Significantly Overvalued. The stock's GF Value™ is €169.67, compared to a current price of €381.05 — trading 124.6% above its estimated fair value. The current Days Inventory is 173.76, which is near median its 10-year median of 173.05 and 54.9% above the Semiconductors industry median of 112.18. Tokyo Electron's overall GF Score™ is 81/100 with 8 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 Tokyo Electron (STU:TKY), the current Days Inventory is 173.76 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 Tokyo Electron (STU:TKY) Overvalued in 2026?

Based on GuruFocus' analysis, Tokyo Electron stock appears to be overvalued. The current stock price of €381.05 is trading 124.6% above its estimated GF Value™ of €169.67. GuruFocus considers Tokyo Electron to be Significantly Overvalued.

Key valuation signals for STU:TKY:

  • Days Inventory: 173.76 (near median its 10-year median of 173.05)
  • GF Value™: €169.67 vs. price of €381.05 (124.6% above fair value)
  • GF Score™: 81/100 with 8 warning signs
  • Industry Position: 54.9% above the Semiconductors median (#768 of 983)

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


Tokyo Electron Business Description

Address 5-3-1 Akasaka, 38th Floor, Akasaka Biz Tower, Minato-ku, Tokyo, JPN, 107-6325
Tokyo Electron is a major supplier of semiconductor fabrication tools. It operates primarily in the etching, deposition, and cleaning segments, which involve adding and removing materials to and from semiconductor wafers. Customers include leading-edge logic, foundry, and memory chipmakers such as Samsung Electronics, Intel, TSMC, and SK Hynix.
81GF Score

Get the complete analysis for STU:TKY

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

€381.05
Price
€169.67
GF Value