Planoptik AGHAM:P4O +7.21%55 Days Inventory is 2,009.10 as of Dec. 2025, which is 103% above its 10-year median of 990.88. GuruFocus rates HAM:P4O with a GF Score™ of 55/100 and a GF Value™ of €3.30 (Significantly Overvalued). The stock has 2 warning signs investors should review. Among 2,414 Hardware companies, Planoptik AG ranks worse than 99.3% on this metric.
Days Inventory is also known as Days Sales of Inventory (DSI). Planoptik AG's Average Total Inventories for the
six
months ended in Dec. 2025 was €5.01 Mil. Planoptik AG's Cost of Goods Sold for the
six
months ended in Dec. 2025 was €0.46 Mil.
Hence, Planoptik AG's Days Inventory for the
six
months ended in Dec. 2025 was 2,009.10.
The historical rank and industry rank for Planoptik AG's Days Inventory or its related term are showing as below:
HAM:P4O'
s Days Inventory Range Over the Past 10 Years
Min: 572.75 Med: 990.88 Max: 1342.88
Current: 1330.67
During the past 13 years, Planoptik AG's highest Days Inventory was 1342.88. The lowest was 572.75. And the median was 990.88.
HAM:P4O's Days Inventory is ranked worse than 99.3% of 2414
companies
in the Hardware industry
Industry Median: 94.18
vs HAM:P4O: 1330.67
Planoptik AG's Days Inventory
increased
from Dec. 2024 (1,788.21) to Dec. 2025 (2,009.10).
It might indicate that Planoptik AG's sales slowed down.
Inventory Turnover measures how fast the company turns over its inventory within a year.
Planoptik AG's Inventory Turnover for the
six
months ended in Dec. 2025 was 0.09.
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.
Planoptik AG's Inventory-to-Revenue for the
six
months ended in Dec. 2025 was 0.93.
Planoptik AG (HAM:P4O) 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.
Planoptik AG's Inventory Turnover for the
six
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.
Planoptik AG's Inventory to Revenue for the
six
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.
Planoptik AG Days Inventory Related Terms
Planoptik AG Days Inventory Historical Data
* Premium members only.
The historical data trend for Planoptik AG'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.
HAM:P4O vs COHR, KEYS, GRMN: Days Inventory Comparison
For the Scientific & Technical Instruments subindustry, Planoptik AG'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.
Planoptik AG Days Inventory vs Hardware Industry
For the Hardware industry and Technology sector, Planoptik AG's Days Inventory distribution charts can be found below:
* The bar in red indicates where Planoptik AG's Days Inventory falls into.
* 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.
Planoptik AG (HAM:P4O) has a Days Inventory of 2,009.10 as of Dec. 2025. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Planoptik AG and its competitors. This is 103% above median its historical median of 990.88. Over the past decade, Planoptik AG's Days Inventory has ranged from 572.75 to 1,342.88. According to the industry distribution chart, Planoptik AG ranks #2397 out of 2414 companies in the Hardware industry, placing it in the top 99.3%.
Is Planoptik AG's Days Inventory too high?
Planoptik AG's current Days Inventory of 2,009.10 is 103% above median its 10-year median of 990.88. Over the past 10 years, this metric has ranged from a low of 572.75 to a high of 1,342.88. The Hardware industry median Days Inventory is 94.18. Planoptik AG's value of 2,009.10 is 2033.3% above this industry median. Based on the distribution chart, Planoptik AG ranks #2397 out of 2414 companies in the Hardware industry, which is in the bottom quartile relative to peers. Overall, Planoptik AG has a GF Score™ of 55/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Planoptik AG's Days Inventory compare to COHR and KEYS?
According to the Hardware industry distribution chart, Planoptik AG ranks #2397 out of 2414 companies for Days Inventory. This places Planoptik AG in the lower half of its industry. The industry median Days Inventory is 94.18. Planoptik AG's value of 2,009.10 is 2033.3% above this benchmark. Historically, Planoptik AG's own Days Inventory has ranged from 572.75 to 1,342.88 over the past decade. While the company's 10-year median is 990.88 vs. the industry median of 94.18, Planoptik AG 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 Hardware company?
The median Days Inventory among Hardware companies is 94.18, 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. Planoptik AG's current Days Inventory of 2,009.10 is 2033.3% 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 Planoptik AG and its competitors. For the Hardware industry, the median Days Inventory is 94.18 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Planoptik AG's current Days Inventory is 2,009.10, which is 103% above median its own 10-year median of 990.88. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Planoptik AG stock overvalued right now?
Based on GuruFocus' analysis, Planoptik AG (HAM:P4O) is currently considered Significantly Overvalued. The stock's GF Value™ is €3.30, compared to a current price of €8.92 — trading 170.3% above its estimated fair value. The current Days Inventory is 2,009.10, which is 103% above median its 10-year median of 990.88 and 2033.3% above the Hardware industry median of 94.18. Planoptik AG's overall GF Score™ is 55/100 with 2 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 Planoptik AG (HAM:P4O), the current Days Inventory is 2,009.10 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 Planoptik AG (HAM:P4O) Overvalued in 2026?
Based on GuruFocus' analysis, Planoptik AG stock appears to be overvalued.
The current stock price of €8.92 is trading 170.3% above its estimated GF Value™ of €3.30.
GuruFocus considers Planoptik AG to be Significantly Overvalued.
Key valuation signals for HAM:P4O:
Days Inventory: 2,009.10 (103% above median its 10-year median of 990.88)
GF Value™: €3.30 vs. price of €8.92 (170.3% above fair value)
Industry Position: 2033.3% above the Hardware median (#2397 of 2414)
No single metric tells the full story. See the HAM:P4O stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Planoptik AG is a German based manufacturer of structured wafers. Its products are Glass wafers, Carriers and tools, Packaging wafers and Interposer. Its products used in consumer electronics, automotive, aerospace, chemistry and pharmaceuticals industry.
55GF Score
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