Fulltech Fiber Glass (ROCO:1815) Inventory Turnover: 0.59 (As of Dec. 2025)

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.

ROCO:1815 Fulltech Fiber Glass Corp ROCO:1815
61 GF Score
Price NT$88.40
GF Value NT$35.97
Valuation Significantly Overvalued
! 1 Warning Sign
View Full Analysis

What is Fulltech Fiber Glass Inventory Turnover?

Fulltech Fiber Glass ROCO:1815 -6.55% 61 Inventory Turnover is 0.59 as of Dec. 2025. GuruFocus rates ROCO:1815 with a GF Score™ of 61/100 and a GF Value™ of NT$35.97 (Significantly Overvalued). The stock has 1 warning sign investors should review.

Inventory Turnover measures how fast the company turns over its inventory within a year. It is calculated as Cost of Goods Sold divided by Total Inventories. Fulltech Fiber Glass's Cost of Goods Sold for the three months ended in Dec. 2025 was NT$1,162 Mil. Fulltech Fiber Glass's Average Total Inventories for the quarter that ended in Dec. 2025 was NT$1,956 Mil. Fulltech Fiber Glass's Inventory Turnover for the quarter that ended in Dec. 2025 was 0.59.

Days Inventory indicates the number of days of goods in sales that a company has in the inventory. Fulltech Fiber Glass's Days Inventory for the three months ended in Dec. 2025 was 153.56.

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. Fulltech Fiber Glass's Inventory-to-Revenue for the quarter that ended in Dec. 2025 was 1.19.


Fulltech Fiber Glass  (ROCO:1815) Inventory Turnover Explanation

Inventory Turnover measures how fast the company turns over its inventory within a year. A higher Inventory Turnover means the company has light inventory. Therefore the company spends less money on storage, write downs, and obsolete inventory. If the inventory is too light, it may affect sales because the company may not have enough to meet demand.

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

Fulltech Fiber Glass's Days Inventory for the three months ended in Dec. 2025 is calculated as:

Days Inventory =Average Total Inventories (Q: Dec. 2025 )/Cost of Goods Sold (Q: Dec. 2025 )*Days in Period
=1955.6935/1162.136*365 / 4
=153.56

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.

Fulltech Fiber Glass's Inventory to Revenue for the quarter that ended in Dec. 2025 is calculated as

Inventory-to-Revenue=Average Total Inventories (Q: Dec. 2025 ) / Revenue (Q: Dec. 2025 )
=1955.6935 / 1637.092
=1.19

* 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

Usually retailers pile up their inventories at holiday seasons to meet the stronger demand. Therefore, the inventory of a particular quarter of a year should not be used to calculate Inventory Turnover. An average inventory is a better indication.


Fulltech Fiber Glass Inventory Turnover Related Terms


Fulltech Fiber Glass Inventory Turnover Historical Data

* Premium members only.

The historical data trend for Fulltech Fiber Glass's Inventory Turnover 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.

Fulltech Fiber Glass Inventory Turnover Chart

Fulltech Fiber Glass Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Inventory Turnover
Get a 7-Day Free Trial Premium Member Only Premium Member Only 3.84 3.69 2.51 2.38 2.34

Fulltech Fiber Glass Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
Inventory Turnover 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 0.63 0.57 0.61 0.62 0.59
ROCO:1815
61GF Score
Fulltech Fiber Glass Corp ROCO:1815
Inventory Turnover is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Fulltech Fiber Glass Inventory Turnover Calculation

Fulltech Fiber Glass's Inventory Turnover for the fiscal year that ended in Dec. 2025 is calculated as

Inventory Turnover (A: Dec. 2025 )
=Cost of Goods Sold / Average Total Inventories
=Cost of Goods Sold (A: Dec. 2025 ) / ((Total Inventories (A: Dec. 2024 ) + Total Inventories (A: Dec. 2025 )) / count )
=4327.834 / ((1636.843 + 2058.46) / 2 )
=4327.834 / 1847.6515
=2.34

Fulltech Fiber Glass's Inventory Turnover for the quarter that ended in Dec. 2025 is calculated as

Inventory Turnover (Q: Dec. 2025 )
=Cost of Goods Sold / Average Total Inventories
=Cost of Goods Sold (Q: Dec. 2025 ) / ((Total Inventories (Q: Sep. 2025 ) + Total Inventories (Q: Dec. 2025 )) / count )
=1162.136 / ((1852.927 + 2058.46) / 2 )
=1162.136 / 1955.6935
=0.59

* 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 Inventory Turnover →
What does a Inventory Turnover of 0.59 mean?
Fulltech Fiber Glass (ROCO:1815) has a Inventory Turnover of 0.59 as of Dec. 2025. Inventory turnover equals current-period cost of goods sold divided by average two-period total inventories. View historical data on Fulltech Fiber Glass and its competitors.
Is Fulltech Fiber Glass' Inventory Turnover too high?
Fulltech Fiber Glass' current Inventory Turnover is 0.59. Overall, Fulltech Fiber Glass has a GF Score™ of 61/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Fulltech Fiber Glass' Inventory Turnover compare to APH and GLW?
Fulltech Fiber Glass' Inventory Turnover of 0.59 can be compared against companies in the Hardware industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Inventory Turnover for a Hardware company?
A good Inventory Turnover depends on the Hardware industry context. However, Inventory Turnover should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Inventory Turnover mean?
A high Inventory Turnover can signal that a stock is expensive relative to its fundamentals. Inventory turnover equals current-period cost of goods sold divided by average two-period total inventories. View historical data on Fulltech Fiber Glass and its competitors. Fulltech Fiber Glass's current Inventory Turnover is 0.59. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Fulltech Fiber Glass stock overvalued right now?
Based on GuruFocus' analysis, Fulltech Fiber Glass (ROCO:1815) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$35.97, compared to a current price of NT$88.40 — trading 145.8% above its estimated fair value. The current Inventory Turnover is 0.59. Fulltech Fiber Glass' overall GF Score™ is 61/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Inventory Turnover calculated?
Inventory Turnover is calculated from a company's financial statements. For Fulltech Fiber Glass (ROCO:1815), the current Inventory Turnover is 0.59 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 Fulltech Fiber Glass (ROCO:1815) Overvalued in 2026?

Based on GuruFocus' analysis, Fulltech Fiber Glass stock appears to be overvalued. The current stock price of NT$88.40 is trading 145.8% above its estimated GF Value™ of NT$35.97. GuruFocus considers Fulltech Fiber Glass to be Significantly Overvalued.

Key valuation signals for ROCO:1815:

  • Inventory Turnover: 0.59
  • GF Value™: NT$35.97 vs. price of NT$88.40 (145.8% above fair value)
  • GF Score™: 61/100 with 1 warning sign

No single metric tells the full story. See the ROCO:1815 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Fulltech Fiber Glass Business Description

Address No. 8, Dougong 16th Road, Yunlin County, Douliu, TWN
Fulltech Fiber Glass Corp is engaged in producing and selling fiberglass yarn and fiberglass fabric, which are the main upstream materials for Printed Circuit Boards. The reportable segments of the company are the Fiberglass Yarn and the Fiberglass Fabric segment. Geographically, the company generates a majority of its revenue from Taiwan and the rest from China.
61GF Score

Get the complete analysis for ROCO:1815

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

NT$88.40
Price
NT$35.97
GF Value