StarPower Semiconductor (SHSE:603290) Days Inventory: 229.11 (As of Mar. 2026) — 84% Above 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:603290 StarPower Semiconductor Ltd SHSE:603290
93 GF Score
Price ¥79.08
GF Value ¥116.24
Valuation Possible Value Trap
! 8 Warning Signs
View Full Analysis

What is StarPower Semiconductor Days Inventory?

StarPower Semiconductor SHSE:603290 -4.09% 93 Days Inventory is 229.11 as of Mar. 2026, which is 84% above its 10-year median of 124.72. GuruFocus rates SHSE:603290 with a GF Score™ of 93/100 and a GF Value™ of ¥116.24 (Possible Value Trap). The stock has 8 warning signs investors should review. Among 982 Semiconductors companies, StarPower Semiconductor ranks worse than 76.88% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). StarPower Semiconductor's Average Total Inventories for the three months ended in Mar. 2026 was ¥1,712 Mil. StarPower Semiconductor's Cost of Goods Sold for the three months ended in Mar. 2026 was ¥682 Mil. Hence, StarPower Semiconductor's Days Inventory for the three months ended in Mar. 2026 was 229.11.

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

SHSE:603290' s Days Inventory Range Over the Past 10 Years
Min: 99.35   Med: 124.72   Max: 199.8
Current: 195.81

During the past 11 years, StarPower Semiconductor's highest Days Inventory was 199.80. The lowest was 99.35. And the median was 124.72.

SHSE:603290's Days Inventory is ranked worse than
76.88% of 982 companies
in the Semiconductors industry
Industry Median: 112.03 vs SHSE:603290: 195.81

StarPower Semiconductor's Days Inventory increased from Mar. 2025 (190.09) to Mar. 2026 (229.11). It might indicate that StarPower Semiconductor's sales slowed down.

Inventory Turnover measures how fast the company turns over its inventory within a year. StarPower Semiconductor's Inventory Turnover for the three months ended in Mar. 2026 was 0.40.

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. StarPower Semiconductor's Inventory-to-Revenue for the three months ended in Mar. 2026 was 1.98.


StarPower Semiconductor  (SHSE:603290) 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.

StarPower Semiconductor'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.

StarPower Semiconductor'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.


StarPower Semiconductor Days Inventory Related Terms


StarPower Semiconductor Days Inventory Historical Data

* Premium members only.

The historical data trend for StarPower Semiconductor'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.

StarPower Semiconductor Days Inventory Chart

StarPower Semiconductor 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 110.13 124.08 156.45 199.80 181.16

StarPower Semiconductor 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 190.09 187.61 186.82 188.39 229.11

SHSE:603290 vs AMAT, LRCX, KLAC: Days Inventory Comparison

For the Semiconductor Equipment & Materials subindustry, StarPower Semiconductor'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.


StarPower Semiconductor Days Inventory vs Semiconductors Industry

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

* The bar in red indicates where StarPower Semiconductor's Days Inventory falls into.


SHSE:603290
93GF Score
StarPower Semiconductor Ltd SHSE:603290
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

StarPower Semiconductor Days Inventory Calculation

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

StarPower Semiconductor'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
=( (1280.13 + 1663.754) / 2 ) / 2965.735*365
=1471.942 / 2965.735*365
=181.16

StarPower Semiconductor'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
=( (1663.754 + 1760.84) / 2 ) / 681.986*365 / 4
=1712.297 / 681.986*365 / 4
=229.11

* 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 229.11 mean?
StarPower Semiconductor (SHSE:603290) has a Days Inventory of 229.11 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on StarPower Semiconductor and its competitors. This is 84% above median its historical median of 124.72. Over the past decade, StarPower Semiconductor's Days Inventory has ranged from 99.35 to 199.80. According to the industry distribution chart, StarPower Semiconductor ranks #755 out of 982 companies in the Semiconductors industry, placing it in the top 76.9%.
Is StarPower Semiconductor's Days Inventory too high?
StarPower Semiconductor's current Days Inventory of 229.11 is 84% above median its 10-year median of 124.72. Over the past 10 years, this metric has ranged from a low of 99.35 to a high of 199.80. The Semiconductors industry median Days Inventory is 112.03. StarPower Semiconductor's value of 229.11 is 104.5% above this industry median. Based on the distribution chart, StarPower Semiconductor ranks #755 out of 982 companies in the Semiconductors industry, which is in the bottom quartile relative to peers. Overall, StarPower Semiconductor has a GF Score™ of 93/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does StarPower Semiconductor's Days Inventory compare to AMAT and LRCX?
According to the Semiconductors industry distribution chart, StarPower Semiconductor ranks #755 out of 982 companies for Days Inventory. This places StarPower Semiconductor in the lower half of its industry. The industry median Days Inventory is 112.03. StarPower Semiconductor's value of 229.11 is 104.5% above this benchmark. Historically, StarPower Semiconductor's own Days Inventory has ranged from 99.35 to 199.80 over the past decade. While the company's 10-year median is 124.72 vs. the industry median of 112.03, StarPower Semiconductor 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 112.03, based on 982 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. StarPower Semiconductor's current Days Inventory of 229.11 is 104.5% 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 StarPower Semiconductor and its competitors. For the Semiconductors industry, the median Days Inventory is 112.03 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. StarPower Semiconductor's current Days Inventory is 229.11, which is 84% above median its own 10-year median of 124.72. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is StarPower Semiconductor stock overvalued right now?
Based on GuruFocus' analysis, StarPower Semiconductor (SHSE:603290) is currently considered Possible Value Trap. The stock's GF Value™ is ¥116.24, compared to a current price of ¥79.08 — trading 32% below its estimated fair value. The current Days Inventory is 229.11, which is 84% above median its 10-year median of 124.72 and 104.5% above the Semiconductors industry median of 112.03. StarPower Semiconductor's overall GF Score™ is 93/100 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 StarPower Semiconductor (SHSE:603290), the current Days Inventory is 229.11 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 StarPower Semiconductor (SHSE:603290) Overvalued in 2026?

Based on GuruFocus' analysis, StarPower Semiconductor stock appears to be undervalued. The current stock price of ¥79.08 is trading 32% below its estimated GF Value™ of ¥116.24. GuruFocus considers StarPower Semiconductor to be Possible Value Trap.

Key valuation signals for SHSE:603290:

  • Days Inventory: 229.11 (84% above median its 10-year median of 124.72)
  • GF Value™: ¥116.24 vs. price of ¥79.08 (32% below fair value)
  • GF Score™: 93/100 with 8 warning signs
  • Industry Position: 104.5% above the Semiconductors median (#755 of 982)

No single metric tells the full story. See the SHSE:603290 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


StarPower Semiconductor Business Description

Address 988 Kexing Road, Nanhu District, Zhejiang Province, Jiaxing, CHN, 314006
StarPower Semiconductor Ltd designs, researches, develops, and produces insulated-gate bipolar transistor (IGBT) - based power semiconductor chips and modules, and external sales in the form of IGBT modules.
93GF Score

Get the complete analysis for SHSE:603290

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

¥79.08
Price
¥116.24
GF Value