Star Lake Bioscience Co (SHSE:600866) Days Inventory: 67.76 (As of Mar. 2026) — 49% Below 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.

SHSE:600866 Star Lake Bioscience Co Inc SHSE:600866
70 GF Score
Price ¥5.01
GF Value ¥5.86
Valuation Modestly Undervalued
! 7 Warning Signs
View Full Analysis

What is Star Lake Bioscience Co Days Inventory?

Star Lake Bioscience Co SHSE:600866 -0.60% 70 Days Inventory is 67.76 as of Mar. 2026, which is 49% below its 10-year median of 131.68. GuruFocus rates SHSE:600866 with a GF Score™ of 70/100 and a GF Value™ of ¥5.86 (Modestly Undervalued). The stock has 7 warning signs investors should review. Among 638 Biotechnology companies, Star Lake Bioscience Co ranks better than 83.39% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). Star Lake Bioscience Co's Average Total Inventories for the three months ended in Mar. 2026 was ¥2,565 Mil. Star Lake Bioscience Co's Cost of Goods Sold for the three months ended in Mar. 2026 was ¥3,454 Mil. Hence, Star Lake Bioscience Co's Days Inventory for the three months ended in Mar. 2026 was 67.76.

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

SHSE:600866' s Days Inventory Range Over the Past 10 Years
Min: 55.68   Med: 131.68   Max: 164.03
Current: 60.21

During the past 13 years, Star Lake Bioscience Co's highest Days Inventory was 164.03. The lowest was 55.68. And the median was 131.68.

SHSE:600866's Days Inventory is ranked better than
83.39% of 638 companies
in the Biotechnology industry
Industry Median: 183.195 vs SHSE:600866: 60.21

Star Lake Bioscience Co's Days Inventory increased from Mar. 2025 (65.31) to Mar. 2026 (67.76). It might indicate that Star Lake Bioscience Co's sales slowed down.

Inventory Turnover measures how fast the company turns over its inventory within a year. Star Lake Bioscience Co's Inventory Turnover for the three months ended in Mar. 2026 was 1.35.

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. Star Lake Bioscience Co's Inventory-to-Revenue for the three months ended in Mar. 2026 was 0.69.


Star Lake Bioscience Co  (SHSE:600866) 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.

Star Lake Bioscience Co'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.

Star Lake Bioscience Co'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.


Star Lake Bioscience Co Days Inventory Related Terms


Star Lake Bioscience Co Days Inventory Historical Data

* Premium members only.

The historical data trend for Star Lake Bioscience 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.

Star Lake Bioscience Co Days Inventory Chart

Star Lake Bioscience Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Days Inventory
Get a 7-Day Free Trial Premium Member Only Premium Member Only 153.03 73.98 68.86 55.68 58.92

Star Lake Bioscience Co 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 65.31 63.73 50.50 47.59 67.76

SHSE:600866 vs VRTX, REGN, ALNY: Days Inventory Comparison

For the Biotechnology subindustry, Star Lake Bioscience 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.


Star Lake Bioscience Co Days Inventory vs Biotechnology Industry

For the Biotechnology industry and Healthcare sector, Star Lake Bioscience Co's Days Inventory distribution charts can be found below:

* The bar in red indicates where Star Lake Bioscience Co's Days Inventory falls into.


SHSE:600866
70GF Score
Star Lake Bioscience Co Inc SHSE:600866
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Star Lake Bioscience Co Days Inventory Calculation

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

Star Lake Bioscience Co'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
=( (2074.563 + 2210.861) / 2 ) / 13272.68*365
=2142.712 / 13272.68*365
=58.92

Star Lake Bioscience 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: Dec. 2025 ) + Total Inventories (Q: Mar. 2026 )) / count ) / Cost of Goods Sold (Q: Mar. 2026 )*Days in Period
=( (2210.861 + 2918.587) / 2 ) / 3453.873*365 / 4
=2564.724 / 3453.873*365 / 4
=67.76

* 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 67.76 mean?
Star Lake Bioscience Co (SHSE:600866) has a Days Inventory of 67.76 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Star Lake Bioscience Co and its competitors. This is 49% below median its historical median of 131.68. Over the past decade, Star Lake Bioscience Co's Days Inventory has ranged from 55.68 to 164.03. According to the industry distribution chart, Star Lake Bioscience Co ranks #106 out of 638 companies in the Biotechnology industry, placing it in the top 16.6%.
Is Star Lake Bioscience Co's Days Inventory too high?
Star Lake Bioscience Co's current Days Inventory of 67.76 is 49% below median its 10-year median of 131.68. Over the past 10 years, this metric has ranged from a low of 55.68 to a high of 164.03. The Biotechnology industry median Days Inventory is 183.20. Star Lake Bioscience Co's value of 67.76 is 63% below this industry median. Based on the distribution chart, Star Lake Bioscience Co ranks #106 out of 638 companies in the Biotechnology industry, which is in the top quartile — a strong position relative to peers. Overall, Star Lake Bioscience Co has a GF Score™ of 70/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Star Lake Bioscience Co's Days Inventory compare to VRTX and REGN?
According to the Biotechnology industry distribution chart, Star Lake Bioscience Co ranks #106 out of 638 companies for Days Inventory. This places Star Lake Bioscience Co in the top 17% of its industry — outperforming the majority of peers. The industry median Days Inventory is 183.20. Star Lake Bioscience Co's value of 67.76 is 63% below this benchmark. Historically, Star Lake Bioscience Co's own Days Inventory has ranged from 55.68 to 164.03 over the past decade. While the company's 10-year median is 131.68 vs. the industry median of 183.20, Star Lake Bioscience 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. Star Lake Bioscience Co's current Days Inventory of 67.76 is 63% 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 Star Lake Bioscience 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. Star Lake Bioscience Co's current Days Inventory is 67.76, which is 49% below median its own 10-year median of 131.68. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Star Lake Bioscience Co stock overvalued right now?
Based on GuruFocus' analysis, Star Lake Bioscience Co (SHSE:600866) is currently considered Modestly Undervalued. The stock's GF Value™ is ¥5.86, compared to a current price of ¥5.01 — trading 14.5% below its estimated fair value. The current Days Inventory is 67.76, which is 49% below median its 10-year median of 131.68 and 63% below the Biotechnology industry median of 183.20. Star Lake Bioscience Co's overall GF Score™ is 70/100 with 7 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 Star Lake Bioscience Co (SHSE:600866), the current Days Inventory is 67.76 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 Star Lake Bioscience Co (SHSE:600866) Overvalued in 2026?

Based on GuruFocus' analysis, Star Lake Bioscience Co stock appears to be undervalued. The current stock price of ¥5.01 is trading 14.5% below its estimated GF Value™ of ¥5.86. GuruFocus considers Star Lake Bioscience Co to be Modestly Undervalued.

Key valuation signals for SHSE:600866:

  • Days Inventory: 67.76 (49% below median its 10-year median of 131.68)
  • GF Value™: ¥5.86 vs. price of ¥5.01 (14.5% below fair value)
  • GF Score™: 70/100 with 7 warning signs
  • Industry Position: 63% below the Biotechnology median (#106 of 638)

No single metric tells the full story. See the SHSE:600866 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Star Lake Bioscience Co Business Description

Address No. 67 Gongnong North Road, Guangdong Province, Zhaoqing, CHN, 526060
Star Lake Bioscience Co Inc is a China-based Pharmaceutical manufacturer. The company is mainly engaged in the research, development, production, and sales of chemical raw materials and pharmaceutical intermediates. Products offered by the company include proline, guanosine, adenosine, adenine, adefovir dipivoxil, memantine hydrochloride, Proline, threonine, lysine, among others. Its products are used in food processing, feed processing, and pharmaceutical manufacturing. Star Lake sells its products through direct sales and distributors in China and overseas markets.
70GF Score

Get the complete analysis for SHSE:600866

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

¥5.01
Price
¥5.86
GF Value