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.
Tele Columbus AGHAM:TC1 -4.00%33 Days Inventory is 57.32 as of Mar. 2026, which is 175% above its 10-year median of 20.81. GuruFocus rates HAM:TC1 with a GF Score™ of 33/100 and a GF Value™ of €0.32 (Significantly Overvalued). The stock has 7 warning signs investors should review. Among 295 Telecommunication Services companies, Tele Columbus AG ranks worse than 88.81% on this metric.
The historical rank and industry rank for Tele Columbus AG's Days Inventory or its related term are showing as below:
HAM:TC1'
s Days Inventory Range Over the Past 10 Years
Min: 14.8 Med: 20.81 Max: 148.72
Current: 74.39
During the past 13 years, Tele Columbus AG's highest Days Inventory was 148.72. The lowest was 14.80. And the median was 20.81.
HAM:TC1's Days Inventory is ranked worse than 88.81% of 295
companies
in the Telecommunication Services industry
Industry Median: 18.59
vs HAM:TC1: 74.39
Tele Columbus AG's Days Inventory
declined
from Mar. 2025 (113.03) to Mar. 2026 (57.32).
Inventory Turnover measures how fast the company turns over its inventory within a year.
Tele Columbus AG's Inventory Turnover for the
three
months ended in Mar. 2026 was 1.59.
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.
Tele Columbus AG's Inventory-to-Revenue for the
three
months ended in Mar. 2026 was 0.13.
Tele Columbus AG (HAM:TC1) 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.
Tele Columbus AG'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.
Tele Columbus AG's Inventory to Revenue for the
three
months 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.
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.
Tele Columbus AG Days Inventory Related Terms
Tele Columbus AG Days Inventory Historical Data
* Premium members only.
The historical data trend for Tele Columbus 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.
For the Telecom Services subindustry, Tele Columbus 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.
Tele Columbus AG Days Inventory vs Telecommunication Services Industry
For the Telecommunication Services industry and Communication Services sector, Tele Columbus AG's Days Inventory distribution charts can be found below:
* The bar in red indicates where Tele Columbus 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.
Tele Columbus AG (HAM:TC1) has a Days Inventory of 57.32 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Tele Columbus AG and its competitors. This is 175% above median its historical median of 20.81. Over the past decade, Tele Columbus AG's Days Inventory has ranged from 14.80 to 148.72. According to the industry distribution chart, Tele Columbus AG ranks #262 out of 295 companies in the Telecommunication Services industry, placing it in the top 88.8%.
Is Tele Columbus AG's Days Inventory too high?
Tele Columbus AG's current Days Inventory of 57.32 is 175% above median its 10-year median of 20.81. Over the past 10 years, this metric has ranged from a low of 14.80 to a high of 148.72. The Telecommunication Services industry median Days Inventory is 18.59. Tele Columbus AG's value of 57.32 is 208.3% above this industry median. Based on the distribution chart, Tele Columbus AG ranks #262 out of 295 companies in the Telecommunication Services industry, which is in the bottom quartile relative to peers. Overall, Tele Columbus AG has a GF Score™ of 33/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Tele Columbus AG's Days Inventory compare to TMUS and VZ?
According to the Telecommunication Services industry distribution chart, Tele Columbus AG ranks #262 out of 295 companies for Days Inventory. This places Tele Columbus AG in the lower half of its industry. The industry median Days Inventory is 18.59. Tele Columbus AG's value of 57.32 is 208.3% above this benchmark. Historically, Tele Columbus AG's own Days Inventory has ranged from 14.80 to 148.72 over the past decade. While the company's 10-year median is 20.81 vs. the industry median of 18.59, Tele Columbus 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 Telecommunication Services company?
The median Days Inventory among Telecommunication Services companies is 18.59, based on 295 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. Tele Columbus AG's current Days Inventory of 57.32 is 208.3% 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 Tele Columbus AG and its competitors. For the Telecommunication Services industry, the median Days Inventory is 18.59 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Tele Columbus AG's current Days Inventory is 57.32, which is 175% above median its own 10-year median of 20.81. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tele Columbus AG stock overvalued right now?
Based on GuruFocus' analysis, Tele Columbus AG (HAM:TC1) is currently considered Significantly Overvalued. The stock's GF Value™ is €0.32, compared to a current price of €0.48 — trading 50% above its estimated fair value. The current Days Inventory is 57.32, which is 175% above median its 10-year median of 20.81 and 208.3% above the Telecommunication Services industry median of 18.59. Tele Columbus AG's overall GF Score™ is 33/100 with 7 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 Tele Columbus AG (HAM:TC1), the current Days Inventory is 57.32 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 Tele Columbus AG (HAM:TC1) Overvalued in 2026?
Based on GuruFocus' analysis, Tele Columbus AG stock appears to be overvalued.
The current stock price of €0.48 is trading 50% above its estimated GF Value™ of €0.32.
GuruFocus considers Tele Columbus AG to be Significantly Overvalued.
Key valuation signals for HAM:TC1:
Days Inventory: 57.32 (175% above median its 10-year median of 20.81)
GF Value™: €0.32 vs. price of €0.48 (50% above fair value)
Industry Position: 208.3% above the Telecommunication Services median (#262 of 295)
No single metric tells the full story. See the HAM:TC1 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Tele Columbus AG is a triple-play telecommunications company. It derives revenue from TV, the Internet, cellphone, and voice services. The group operates through two main segments: TV and Internet, and telephony. The company's TV segment offers cable TV services to customers. The majority of revenue stems from this segment. Internet and telephony derive revenue from the provision of broadband Internet access as well as fixed-line and mobile telephony services to customers. The company is an owner of telecommunications infrastructure. The company generates the vast majority of its revenue in Germany.
33GF Score
Get the complete analysis for HAM:TC1
Days 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
HAM:TC1 has been successfully added to your 
