CellSource CoTSE:4880 +8.78%69 Days Inventory is 71.64 as of Apr. 2026, which is 2% below its 10-year median of 73.38. GuruFocus rates TSE:4880 with a GF Score™ of 69/100 and a GF Value™ of 円781.22 (Significantly Undervalued). The stock has 6 warning signs investors should review. Among 638 Biotechnology companies, CellSource Co ranks better than 81.35% on this metric.
Days Inventory is also known as Days Sales of Inventory (DSI). CellSource Co's Average Total Inventories for the
six
months ended in Apr. 2026 was 円287 Mil. CellSource Co's Cost of Goods Sold for the
six
months ended in Apr. 2026 was 円731 Mil.
Hence, CellSource Co's Days Inventory for the
six
months ended in Apr. 2026 was 71.64.
The historical rank and industry rank for CellSource Co's Days Inventory or its related term are showing as below:
TSE:4880'
s Days Inventory Range Over the Past 10 Years
Min: 55.55 Med: 73.38 Max: 127.31
Current: 66.9
During the past 9 years, CellSource Co's highest Days Inventory was 127.31. The lowest was 55.55. And the median was 73.38.
TSE:4880's Days Inventory is ranked better than 81.35% of 638
companies
in the Biotechnology industry
Industry Median: 183.195
vs TSE:4880: 66.90
CellSource Co's Days Inventory
increased
from Apr. 2025 (64.57) to Apr. 2026 (71.64).
It might indicate that CellSource Co's sales slowed down.
Inventory Turnover measures how fast the company turns over its inventory within a year.
CellSource Co's Inventory Turnover for the
six
months ended in Apr. 2026 was 2.55.
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.
CellSource Co's Inventory-to-Revenue for the
six
months ended in Apr. 2026 was 0.16.
CellSource Co (TSE:4880) 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.
CellSource Co's Inventory Turnover for the
six
months ended in Apr. 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.
CellSource Co's Inventory to Revenue for the
six
months ended in Apr. 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.
CellSource Co Days Inventory Related Terms
CellSource Co Days Inventory Historical Data
* Premium members only.
The historical data trend for CellSource 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.
TSE:4880 vs VRTX, REGN, ALNY: Days Inventory Comparison
For the Biotechnology subindustry, CellSource 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.
CellSource Co Days Inventory vs Biotechnology Industry
For the Biotechnology industry and Healthcare sector, CellSource Co's Days Inventory distribution charts can be found below:
* The bar in red indicates where CellSource Co'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.
CellSource Co (TSE:4880) has a Days Inventory of 71.64 as of Apr. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on CellSource Co and its competitors. This is near median its historical median of 73.38. Over the past decade, CellSource Co's Days Inventory has ranged from 55.55 to 127.31. According to the industry distribution chart, CellSource Co ranks #119 out of 638 companies in the Biotechnology industry, placing it in the top 18.7%.
Is CellSource Co's Days Inventory too high?
CellSource Co's current Days Inventory of 71.64 is near median its 10-year median of 73.38. Over the past 10 years, this metric has ranged from a low of 55.55 to a high of 127.31. The Biotechnology industry median Days Inventory is 183.20. CellSource Co's value of 71.64 is 60.9% below this industry median. Based on the distribution chart, CellSource Co ranks #119 out of 638 companies in the Biotechnology industry, which is in the top quartile — a strong position relative to peers. Overall, CellSource Co has a GF Score™ of 69/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does CellSource Co's Days Inventory compare to VRTX and REGN?
According to the Biotechnology industry distribution chart, CellSource Co ranks #119 out of 638 companies for Days Inventory. This places CellSource Co in the top 19% of its industry — outperforming the majority of peers. The industry median Days Inventory is 183.20. CellSource Co's value of 71.64 is 60.9% below this benchmark. Historically, CellSource Co's own Days Inventory has ranged from 55.55 to 127.31 over the past decade. While the company's 10-year median is 73.38 vs. the industry median of 183.20, CellSource Co 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 Biotechnology company?
The median Days Inventory among Biotechnology companies is 183.20, based on 638 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. CellSource Co's current Days Inventory of 71.64 is 60.9% 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 CellSource Co and its competitors. For the Biotechnology industry, the median Days Inventory is 183.20 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. CellSource Co's current Days Inventory is 71.64, which is near median its own 10-year median of 73.38. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is CellSource Co stock overvalued right now?
Based on GuruFocus' analysis, CellSource Co (TSE:4880) is currently considered Significantly Undervalued. The stock's GF Value™ is 円781.22, compared to a current price of 円347.00 — trading 55.6% below its estimated fair value. The current Days Inventory is 71.64, which is near median its 10-year median of 73.38 and 60.9% below the Biotechnology industry median of 183.20. CellSource Co's overall GF Score™ is 69/100 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 CellSource Co (TSE:4880), the current Days Inventory is 71.64 as of Apr. 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 CellSource Co (TSE:4880) Overvalued in 2026?
Based on GuruFocus' analysis, CellSource Co stock appears to be undervalued.
The current stock price of 円347.00 is trading 55.6% below its estimated GF Value™ of 円781.22.
GuruFocus considers CellSource Co to be Significantly Undervalued.
Key valuation signals for TSE:4880:
Days Inventory: 71.64 (near median its 10-year median of 73.38)
GF Value™: 円781.22 vs. price of 円347.00 (55.6% below fair value)
Industry Position: 60.9% below the Biotechnology median (#119 of 638)
No single metric tells the full story. See the TSE:4880 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
CellSource Co Ltd is engaged in contract manufacturing of fat-and blood-derived organizations and cells from medical institutions, provision of legal support to medical institutions in the regenerative medicine business. The company is also involved in sales of medical devices, and sales of own-brand cosmetics in the consumer business.
69GF Score
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