AUO (TPE:2409) Days Inventory: 55.58 (As of Mar. 2026) — 45% Above Median


TPE:2409 AUO Corp TPE:2409
68 GF Score
Price NT$29.55
GF Value NT$17.47
Valuation Significantly Overvalued
! 10 Warning Signs
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What is AUO Days Inventory?

AUO TPE:2409 +0.68% 68 Days Inventory is 55.58 as of Mar. 2026, which is 45% above its 10-year median of 38.43. GuruFocus rates TPE:2409 with a GF Score™ of 68/100 and a GF Value™ of NT$17.47 (Significantly Overvalued). The stock has 10 warning signs investors should review. Among 2,414 Hardware companies, AUO ranks better than 78.67% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). AUO's Average Total Inventories for the three months ended in Mar. 2026 was NT$37,063 Mil. AUO's Cost of Goods Sold for the three months ended in Mar. 2026 was NT$60,848 Mil. Hence, AUO's Days Inventory for the three months ended in Mar. 2026 was 55.58.

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

TPE:2409' s Days Inventory Range Over the Past 10 Years
Min: 33.41   Med: 38.43   Max: 53.02
Current: 53.02

During the past 13 years, AUO's highest Days Inventory was 53.02. The lowest was 33.41. And the median was 38.43.

TPE:2409's Days Inventory is ranked better than
78.67% of 2414 companies
in the Hardware industry
Industry Median: 94.265 vs TPE:2409: 53.02

AUO's Days Inventory increased from Mar. 2025 (48.41) to Mar. 2026 (55.58). It might indicate that AUO's sales slowed down.

Inventory Turnover measures how fast the company turns over its inventory within a year. AUO's Inventory Turnover for the three months ended in Mar. 2026 was 1.64.

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. AUO's Inventory-to-Revenue for the three months ended in Mar. 2026 was 0.54.


AUO  (TPE:2409) 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.

AUO'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.

AUO's Inventory to Revenue for the three months ended in Mar. 2026 is calculated as

Inventory-to-Revenue=Average Total Inventories / Revenue
=37063.421 / 69031.355
=0.54

* 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.


AUO Days Inventory Related Terms


AUO Days Inventory Historical Data

* Premium members only.

The historical data trend for AUO'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.

AUO Days Inventory Chart

AUO 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 39.93 48.19 44.45 44.77 51.32

AUO 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 48.41 52.69 51.66 52.48 55.58

TPE:2409 vs APH, GLW: Days Inventory Comparison

For the Electronic Components subindustry, AUO'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.


AUO Days Inventory vs Hardware Industry

For the Hardware industry and Technology sector, AUO's Days Inventory distribution charts can be found below:

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


TPE:2409
68GF Score
AUO Corp TPE:2409
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
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AUO Days Inventory Calculation

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

AUO'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
=( (33811.177 + 36212.871) / 2 ) / 249032.935*365
=35012.024 / 249032.935*365
=51.32

AUO'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
=( (36212.871 + 37913.971) / 2 ) / 60847.868*365 / 4
=37063.421 / 60847.868*365 / 4
=55.58

* 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 55.58 mean?
AUO (TPE:2409) has a Days Inventory of 55.58 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on AUO and its competitors. This is 45% above median its historical median of 38.43. Over the past decade, AUO's Days Inventory has ranged from 33.41 to 53.02. According to the industry distribution chart, AUO ranks #515 out of 2414 companies in the Hardware industry, placing it in the top 21.3%.
Is AUO's Days Inventory too high?
AUO's current Days Inventory of 55.58 is 45% above median its 10-year median of 38.43. Over the past 10 years, this metric has ranged from a low of 33.41 to a high of 53.02. The Hardware industry median Days Inventory is 94.27. AUO's value of 55.58 is 41% below this industry median. Based on the distribution chart, AUO ranks #515 out of 2414 companies in the Hardware industry, which is in the top quartile — a strong position relative to peers. Overall, AUO has a GF Score™ of 68/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does AUO's Days Inventory compare to APH and GLW?
According to the Hardware industry distribution chart, AUO ranks #515 out of 2414 companies for Days Inventory. This places AUO in the top 21% of its industry — outperforming the majority of peers. The industry median Days Inventory is 94.27. AUO's value of 55.58 is 41% below this benchmark. Historically, AUO's own Days Inventory has ranged from 33.41 to 53.02 over the past decade. While the company's 10-year median is 38.43 vs. the industry median of 94.27, AUO 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 Hardware company?
The median Days Inventory among Hardware companies is 94.27, based on 2,414 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. AUO's current Days Inventory of 55.58 is 41% 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 AUO and its competitors. For the Hardware industry, the median Days Inventory is 94.27 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. AUO's current Days Inventory is 55.58, which is 45% above median its own 10-year median of 38.43. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is AUO stock overvalued right now?
Based on GuruFocus' analysis, AUO (TPE:2409) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$17.47, compared to a current price of NT$29.55 — trading 69.1% above its estimated fair value. The current Days Inventory is 55.58, which is 45% above median its 10-year median of 38.43 and 41% below the Hardware industry median of 94.27. AUO's overall GF Score™ is 68/100 with 10 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 AUO (TPE:2409), the current Days Inventory is 55.58 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 AUO (TPE:2409) Overvalued in 2026?

Based on GuruFocus' analysis, AUO stock appears to be overvalued. The current stock price of NT$29.55 is trading 69.1% above its estimated GF Value™ of NT$17.47. GuruFocus considers AUO to be Significantly Overvalued.

Key valuation signals for TPE:2409:

  • Days Inventory: 55.58 (45% above median its 10-year median of 38.43)
  • GF Value™: NT$17.47 vs. price of NT$29.55 (69.1% above fair value)
  • GF Score™: 68/100 with 10 warning signs
  • Industry Position: 41% below the Hardware median (#515 of 2414)

No single metric tells the full story. See the TPE:2409 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


AUO Business Description

Other Exchanges AUOTY:USAAU7:Germany
Address No. 1, Lixing 2nd Road, Hsinchu Science Park, East District, Hsinchu, TWN, 300094
AUO Corp is a Taiwan-based company that manufactures & distributes thin-film-transistor liquid-crystal-display (TFT-LCD) panels to original equipment manufacturers. It operates in two segments - The display segment & energy segment, the majority is derived from the Display segment. The display segment generally is engaged in the research, development, design, manufacturing, & sale of flat panel displays. The energy segment mainly is engaged in the design, manufacturing, and sale of ingots, solar wafers, and solar modules, as well as providing technical engineering services and maintenance services for solar system projects AU Optronics has manufacturing facilities in Taiwan, Japan, and Malaysia. Geographically, the majority is from the PRC (including Hong Kong).
68GF Score

Get the complete analysis for TPE:2409

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

NT$29.55
Price
NT$17.47
GF Value