Tsubota LaboratoryTSE:4890 -0.41%63 Days Inventory is 785.28 as of Mar. 2026, which is 36% above its 10-year median of 578.19. GuruFocus rates TSE:4890 with a GF Score™ of 63/100 and a GF Value™ of 円83.18 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 788 Medical Devices & Instruments companies, Tsubota Laboratory ranks worse than 97.34% on this metric.
The historical rank and industry rank for Tsubota Laboratory's Days Inventory or its related term are showing as below:
TSE:4890'
s Days Inventory Range Over the Past 10 Years
Min: 179.28 Med: 578.19 Max: 1350.67
Current: 1350.67
During the past 7 years, Tsubota Laboratory's highest Days Inventory was 1350.67. The lowest was 179.28. And the median was 578.19.
TSE:4890's Days Inventory is ranked worse than 97.34% of 788
companies
in the Medical Devices & Instruments industry
Industry Median: 179.115
vs TSE:4890: 1350.67
Tsubota Laboratory's Days Inventory
increased
from Mar. 2025 (291.57) to Mar. 2026 (785.28).
It might indicate that Tsubota Laboratory'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.
Tsubota Laboratory's Inventory Turnover for the
six
months ended in Mar. 2026 was 0.23.
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.
Tsubota Laboratory's Inventory-to-Revenue for the
six
months ended in Mar. 2026 was 2.44.
Tsubota Laboratory (TSE:4890) 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.
Tsubota Laboratory'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.
Tsubota Laboratory'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.
Tsubota Laboratory Days Inventory Related Terms
Tsubota Laboratory Days Inventory Historical Data
* Premium members only.
The historical data trend for Tsubota Laboratory'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.
TSE:4890 vs ABT, SYK, MDT: Days Inventory Comparison
For the Medical Devices subindustry, Tsubota Laboratory'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.
Tsubota Laboratory Days Inventory vs Medical Devices & Instruments Industry
For the Medical Devices & Instruments industry and Healthcare sector, Tsubota Laboratory's Days Inventory distribution charts can be found below:
* The bar in red indicates where Tsubota Laboratory'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.
Tsubota Laboratory (TSE:4890) has a Days Inventory of 785.28 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Tsubota Laboratory and its competitors. This is 36% above median its historical median of 578.19. Over the past decade, Tsubota Laboratory's Days Inventory has ranged from 179.28 to 1,350.67. According to the industry distribution chart, Tsubota Laboratory ranks #767 out of 788 companies in the Medical Devices & Instruments industry, placing it in the top 97.3%.
Is Tsubota Laboratory's Days Inventory too high?
Tsubota Laboratory's current Days Inventory of 785.28 is 36% above median its 10-year median of 578.19. Over the past 10 years, this metric has ranged from a low of 179.28 to a high of 1,350.67. The Medical Devices & Instruments industry median Days Inventory is 179.12. Tsubota Laboratory's value of 785.28 is 338.4% above this industry median. Based on the distribution chart, Tsubota Laboratory ranks #767 out of 788 companies in the Medical Devices & Instruments industry, which is in the bottom quartile relative to peers. Overall, Tsubota Laboratory has a GF Score™ of 63/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Tsubota Laboratory's Days Inventory compare to ABT and SYK?
According to the Medical Devices & Instruments industry distribution chart, Tsubota Laboratory ranks #767 out of 788 companies for Days Inventory. This places Tsubota Laboratory in the lower half of its industry. The industry median Days Inventory is 179.12. Tsubota Laboratory's value of 785.28 is 338.4% above this benchmark. Historically, Tsubota Laboratory's own Days Inventory has ranged from 179.28 to 1,350.67 over the past decade. While the company's 10-year median is 578.19 vs. the industry median of 179.12, Tsubota Laboratory 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 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. Tsubota Laboratory's current Days Inventory of 785.28 is 338.4% 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 Tsubota Laboratory 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. Tsubota Laboratory's current Days Inventory is 785.28, which is 36% above median its own 10-year median of 578.19. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tsubota Laboratory stock overvalued right now?
Based on GuruFocus' analysis, Tsubota Laboratory (TSE:4890) is currently considered Significantly Overvalued. The stock's GF Value™ is 円83.18, compared to a current price of 円243.00 — trading 192.1% above its estimated fair value. The current Days Inventory is 785.28, which is 36% above median its 10-year median of 578.19 and 338.4% above the Medical Devices & Instruments industry median of 179.12. Tsubota Laboratory's overall GF Score™ is 63/100 with 4 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 Tsubota Laboratory (TSE:4890), the current Days Inventory is 785.28 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 Tsubota Laboratory (TSE:4890) Overvalued in 2026?
Based on GuruFocus' analysis, Tsubota Laboratory stock appears to be overvalued.
The current stock price of 円243.00 is trading 192.1% above its estimated GF Value™ of 円83.18.
GuruFocus considers Tsubota Laboratory to be Significantly Overvalued.
Key valuation signals for TSE:4890:
Days Inventory: 785.28 (36% above median its 10-year median of 578.19)
GF Value™: 円83.18 vs. price of 円243.00 (192.1% above fair value)
Industry Position: 338.4% above the Medical Devices & Instruments median (#767 of 788)
No single metric tells the full story. See the TSE:4890 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Tsubota Laboratory Inc is engaged in the research and development of pharmaceuticals and medical devices for the treatment of myopia, dry eyes, and presbyopia.
63GF Score
Get the complete analysis for TSE:4890
Days Inventory is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
TSE:4890 has been successfully added to your 
