Taiwan Styrene Monomer (TPE:1310) Days Inventory: 15.12 (As of Dec. 2025) — 22% Below Median

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TPE:1310 Taiwan Styrene Monomer Corp TPE:1310
67 GF Score
Price NT$10.15
GF Value NT$9.54
Valuation Fairly Valued
! 5 Warning Signs
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What is Taiwan Styrene Monomer Days Inventory?

Taiwan Styrene Monomer TPE:1310 -5.14% 67 Days Inventory is 15.12 as of Dec. 2025, which is 22% below its 10-year median of 19.30. GuruFocus rates TPE:1310 with a GF Score™ of 67/100 and a GF Value™ of NT$9.54 (Fairly Valued). The stock has 5 warning signs investors should review. Among 1,542 Chemicals companies, Taiwan Styrene Monomer ranks better than 97.67% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). Taiwan Styrene Monomer's Average Total Inventories for the three months ended in Dec. 2025 was NT$305 Mil. Taiwan Styrene Monomer's Cost of Goods Sold for the three months ended in Dec. 2025 was NT$1,840 Mil. Hence, Taiwan Styrene Monomer's Days Inventory for the three months ended in Dec. 2025 was 15.12.

The historical rank and industry rank for Taiwan Styrene Monomer's Days Inventory or its related term are showing as below:

TPE:1310' s Days Inventory Range Over the Past 10 Years
Min: 15.01   Med: 19.3   Max: 23.85
Current: 15.36

During the past 13 years, Taiwan Styrene Monomer's highest Days Inventory was 23.85. The lowest was 15.01. And the median was 19.30.

TPE:1310's Days Inventory is ranked better than
97.67% of 1542 companies
in the Chemicals industry
Industry Median: 80.53 vs TPE:1310: 15.36

Taiwan Styrene Monomer's Days Inventory increased from Dec. 2024 (13.71) to Dec. 2025 (15.12). It might indicate that Taiwan Styrene Monomer's sales slowed down.

Inventory Turnover measures how fast the company turns over its inventory within a year. Taiwan Styrene Monomer's Inventory Turnover for the three months ended in Dec. 2025 was 6.04.

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. Taiwan Styrene Monomer's Inventory-to-Revenue for the three months ended in Dec. 2025 was 0.18.


Taiwan Styrene Monomer  (TPE:1310) 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.

Taiwan Styrene Monomer's Inventory Turnover for the three months ended in Dec. 2025 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.

Taiwan Styrene Monomer's Inventory to Revenue for the three months ended in Dec. 2025 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.


Taiwan Styrene Monomer Days Inventory Related Terms


Taiwan Styrene Monomer Days Inventory Historical Data

* Premium members only.

The historical data trend for Taiwan Styrene Monomer'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.

Taiwan Styrene Monomer Days Inventory Chart

Taiwan Styrene Monomer 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 19.82 19.32 23.85 18.42 15.01

Taiwan Styrene Monomer Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
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 13.71 18.43 15.46 12.56 15.12

TPE:1310 vs DOW: Days Inventory Comparison

For the Chemicals subindustry, Taiwan Styrene Monomer'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.


Taiwan Styrene Monomer Days Inventory vs Chemicals Industry

For the Chemicals industry and Basic Materials sector, Taiwan Styrene Monomer's Days Inventory distribution charts can be found below:

* The bar in red indicates where Taiwan Styrene Monomer's Days Inventory falls into.


TPE:1310
67GF Score
Taiwan Styrene Monomer Corp TPE:1310
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Taiwan Styrene Monomer Days Inventory Calculation

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

Taiwan Styrene Monomer'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
=( (456.685 + 301.526) / 2 ) / 9216.061*365
=379.1055 / 9216.061*365
=15.01

Taiwan Styrene Monomer's Days Inventory for the quarter that ended in Dec. 2025 is calculated as:

Days Inventory (Q: Dec. 2025 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (Q: Sep. 2025 ) + Total Inventories (Q: Dec. 2025 )) / count ) / Cost of Goods Sold (Q: Dec. 2025 )*Days in Period
=( (308.133 + 301.526) / 2 ) / 1839.94*365 / 4
=304.8295 / 1839.94*365 / 4
=15.12

* 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 15.12 mean?
Taiwan Styrene Monomer (TPE:1310) has a Days Inventory of 15.12 as of Dec. 2025. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Taiwan Styrene Monomer and its competitors. This is 22% below median its historical median of 19.30. Over the past decade, Taiwan Styrene Monomer's Days Inventory has ranged from 15.01 to 23.85. According to the industry distribution chart, Taiwan Styrene Monomer ranks #36 out of 1542 companies in the Chemicals industry, placing it in the top 2.3%.
Is Taiwan Styrene Monomer's Days Inventory too high?
Taiwan Styrene Monomer's current Days Inventory of 15.12 is 22% below median its 10-year median of 19.30. Over the past 10 years, this metric has ranged from a low of 15.01 to a high of 23.85. The Chemicals industry median Days Inventory is 80.53. Taiwan Styrene Monomer's value of 15.12 is 81.2% below this industry median. Based on the distribution chart, Taiwan Styrene Monomer ranks #36 out of 1542 companies in the Chemicals industry, which is in the top quartile — a strong position relative to peers. Overall, Taiwan Styrene Monomer has a GF Score™ of 67/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Taiwan Styrene Monomer's Days Inventory compare to DOW?
According to the Chemicals industry distribution chart, Taiwan Styrene Monomer ranks #36 out of 1542 companies for Days Inventory. This places Taiwan Styrene Monomer in the top 2% of its industry — outperforming the majority of peers. The industry median Days Inventory is 80.53. Taiwan Styrene Monomer's value of 15.12 is 81.2% below this benchmark. Historically, Taiwan Styrene Monomer's own Days Inventory has ranged from 15.01 to 23.85 over the past decade. While the company's 10-year median is 19.30 vs. the industry median of 80.53, Taiwan Styrene Monomer 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 Chemicals company?
The median Days Inventory among Chemicals companies is 80.53, based on 1,542 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. Taiwan Styrene Monomer's current Days Inventory of 15.12 is 81.2% 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 Taiwan Styrene Monomer and its competitors. For the Chemicals industry, the median Days Inventory is 80.53 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Taiwan Styrene Monomer's current Days Inventory is 15.12, which is 22% below median its own 10-year median of 19.30. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Taiwan Styrene Monomer stock overvalued right now?
Based on GuruFocus' analysis, Taiwan Styrene Monomer (TPE:1310) is currently considered Fairly Valued. The stock's GF Value™ is NT$9.54, compared to a current price of NT$10.15 — trading 6.4% above its estimated fair value. The current Days Inventory is 15.12, which is 22% below median its 10-year median of 19.30 and 81.2% below the Chemicals industry median of 80.53. Taiwan Styrene Monomer's overall GF Score™ is 67/100 with 5 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 Taiwan Styrene Monomer (TPE:1310), the current Days Inventory is 15.12 as of Dec. 2025. 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 Taiwan Styrene Monomer (TPE:1310) Overvalued in 2026?

Based on GuruFocus' analysis, Taiwan Styrene Monomer stock appears to be overvalued. The current stock price of NT$10.15 is trading 6.4% above its estimated GF Value™ of NT$9.54. GuruFocus considers Taiwan Styrene Monomer to be Fairly Valued.

Key valuation signals for TPE:1310:

  • Days Inventory: 15.12 (22% below median its 10-year median of 19.30)
  • GF Value™: NT$9.54 vs. price of NT$10.15 (6.4% above fair value)
  • GF Score™: 67/100 with 5 warning signs
  • Industry Position: 81.2% below the Chemicals median (#36 of 1542)

No single metric tells the full story. See the TPE:1310 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Taiwan Styrene Monomer Business Description

Address No.6 Roosevelt Road, 8th Floor-1, Section-1, Taipei, TWN
Taiwan Styrene Monomer Corp manufactures and sells styrene monomer. The company's products include Styrene Monomer, Para-diethyl benzene, Toluene, and Ethyl benzene. Its main clients are the manufacturers of Polystyrene, ABS resins, and Synthetic rubber, of which the products are widely applied in industries of: electric appliances, machines, electronics, automobiles, and packaging etc. Its segments consist of the Plasticization segment, which engages in manufacturing and domestic/international sales of styrene monomer, chemical and plastic materials; the Investment segment, which engages in investment business; and the Other segment. The majority of the revenue is derived from the Plasticization segment from Asia. Geographically, it operates in Asia, America, and Europe.
67GF Score

Get the complete analysis for TPE:1310

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

NT$10.15
Price
NT$9.54
GF Value