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.
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.
Yankey Engineering Co's change in inventory for the quarter that ended in Mar. 2026 was NT$-190 Mil. It means Yankey Engineering Co's inventory
increased by NT$190 Mil
from Dec. 2025 to Mar. 2026 .
Yankey Engineering Co's change in inventory for the fiscal year that ended in Dec. 2025 was NT$29 Mil. It means Yankey Engineering Co's inventory
declined by NT$29 Mil
from Dec. 2024 to Dec. 2025 .
Days Inventory indicates the number of days of goods in sales that a company has in the inventory.
Yankey Engineering Co's Days Inventory for the quarter that ended in Mar. 2026 was 7.14.
Inventory Turnover measures how fast the company turns over its inventory within a year.
Yankey Engineering Co's Inventory Turnover for the quarter that ended in Mar. 2026 was 12.78.
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.
Yankey Engineering Co's Inventory-to-Revenue for the quarter that ended in Mar. 2026 was 0.06.
3. 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.
Yankey Engineering Co's Inventory to Revenue for the quarter that 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.
Yankey Engineering Co Change In Inventory Related Terms
Yankey Engineering Co Change In Inventory Historical Data
* Premium members only.
The historical data trend for Yankey Engineering Co's Change In 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.
Yankey Engineering Co Change In Inventory Calculation
Change In Inventory is the difference between last period's ending inventory and the current period's ending inventory.
Change In Inventory for the trailing twelve months (TTM) ended in Mar. 2026 adds up the quarterly data reported by the company within the most recent 12 months, which was NT$141 Mil.
* 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.
What does a Change In Inventory of NT$141 Mil mean?
Yankey Engineering Co (TPE:6691) has a Change In Inventory of NT$141 Mil as of Mar. 2026. Change in Inventory is the difference between current-period inventory and past-period inventory. View historical data for Yankey Engineering Co and its competitors.
Is Yankey Engineering Co's Change In Inventory too high?
Yankey Engineering Co's current Change In Inventory is NT$141 Mil. Overall, Yankey Engineering Co has a GF Score™ of 98/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Yankey Engineering Co's Change In Inventory compare to PWR and FIX?
Yankey Engineering Co's Change In Inventory of NT$141 Mil can be compared against companies in the Construction industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Change In Inventory for a Construction company?
A good Change In Inventory depends on the Construction industry context. However, Change In Inventory 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 Change In Inventory mean?
A high Change In Inventory can signal that a stock is expensive relative to its fundamentals. Change in Inventory is the difference between current-period inventory and past-period inventory. View historical data for Yankey Engineering Co and its competitors. Yankey Engineering Co's current Change In Inventory is NT$141 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Yankey Engineering Co stock overvalued right now?
Based on GuruFocus' analysis, Yankey Engineering Co (TPE:6691) is currently considered Modestly Overvalued. The stock's GF Value™ is NT$655.62, compared to a current price of NT$728.00 — trading 11% above its estimated fair value. The current Change In Inventory is NT$141 Mil. Yankey Engineering Co's overall GF Score™ is 98/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Change In Inventory calculated?
Change In Inventory is calculated from a company's financial statements. For Yankey Engineering Co (TPE:6691), the current Change In Inventory is NT$141 Mil 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 Yankey Engineering Co (TPE:6691) Overvalued in 2026?
Based on GuruFocus' analysis, Yankey Engineering Co stock appears to be overvalued.
The current stock price of NT$728.00 is trading 11% above its estimated GF Value™ of NT$655.62.
GuruFocus considers Yankey Engineering Co to be Modestly Overvalued.
Key valuation signals for TPE:6691:
Change In Inventory: NT$141 Mil
GF Value™: NT$655.62 vs. price of NT$728.00 (11% above fair value)
No single metric tells the full story. See the TPE:6691 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Yankey Engineering Co Ltd is engaged in the design and installation of clean room systems, refrigeration, air conditioning systems, and ice-making systems, as well as the sales of materials for these systems. The various services offered by the company include clean room system engineering, high and low voltage transmission system installation, design and construction of fire, water, and electrical systems, and providing comprehensive MEP (Mechanical, Electrical, Plumbing) turnkey services for commercial office buildings, among others. Geographically, the company generates the majority of its revenue from Taiwan and the rest from China, Thailand, Malaysia, and the USA.
98GF Score
Get the complete analysis for TPE:6691
Change In Inventory is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
TPE:6691 has been successfully added to your 
