TDS (Telephone and Data Systems) Change In Inventory: $1 Mil (TTM As of Mar. 2026)

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.

TDS Telephone and Data Systems Inc TDS
65 GF Score
Price $34.32
GF Value $31.54
Valuation Fairly Valued
! 5 Warning Signs
View Full Analysis

What is Telephone and Data Systems Change In Inventory?

Telephone and Data Systems TDS -0.09% 65 Change In Inventory is $1 Mil as of Mar. 2026. GuruFocus rates TDS with a GF Score™ of 65/100 and a GF Value™ of $31.54 (Fairly Valued). The stock has 5 warning signs investors should review.

Telephone and Data Systems's change in inventory for the quarter that ended in Mar. 2026 was $0 Mil. It means Telephone and Data Systems's inventory declined by $0 Mil from Dec. 2025 to Mar. 2026 .

Telephone and Data Systems's change in inventory for the fiscal year that ended in Dec. 2025 was $-0 Mil. It means Telephone and Data Systems's inventory increased by $0 Mil from Dec. 2024 to Dec. 2025 .

Telephone and Data Systems's Total Inventories for the quarter that ended in Mar. 2026 was $4 Mil.

Days Inventory indicates the number of days of goods in sales that a company has in the inventory. Telephone and Data Systems's Days Inventory for the quarter that ended in Mar. 2026 was 2.86.

Inventory Turnover measures how fast the company turns over its inventory within a year. Telephone and Data Systems's Inventory Turnover for the quarter that ended in Mar. 2026 was 31.89.

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. Telephone and Data Systems's Inventory-to-Revenue for the quarter that ended in Mar. 2026 was 0.01.

Telephone and Data Systems  (NYSE:TDS) Change In Inventory Explanation

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

Telephone and Data Systems's Days Inventory for the quarter that ended in is calculated as:

Days Inventory=Average Total Inventories/Cost of Goods Sold*Days in Period
=3.904/124.487*365 / 4
=2.86

2. Inventory Turnover measures how fast the company turns over its inventory within a year.

Telephone and Data Systems's Inventory Turnover for the quarter that ended in Mar. 2026 is calculated as

Inventory Turnover=Cost of Goods Sold / Average Total Inventories
=124.487 / 3.904
=31.89

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.

Telephone and Data Systems's Inventory to Revenue for the quarter that ended in Mar. 2026 is calculated as

Inventory-to-Revenue=Average Total Inventories / Revenue
=3.904 / 309.45
=0.01

* 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.

Telephone and Data Systems Change In Inventory Related Terms

Telephone and Data Systems Change In Inventory Historical Data

* Premium members only.

The historical data trend for Telephone and Data Systems'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.

Telephone and Data Systems Change In Inventory Chart

Telephone and Data Systems Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Change In Inventory
Get a 7-Day Free Trial Premium Member Only Premium Member Only -25.00 -90.00 -1.11 -0.33 -0.01

Telephone and Data Systems Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Change In 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 -0.23 52.23 -51.99 -0.02 0.32
TDS
65GF Score
Telephone and Data Systems Inc TDS
Change In Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Telephone and Data Systems 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 $1 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.

Frequently Asked Questions Learn more about Change In Inventory →
What does a Change In Inventory of $1 Mil mean?
Telephone and Data Systems (TDS) has a Change In Inventory of $1 Mil as of Mar. 2026. Change in Inventory is the difference between current-period inventory and past-period inventory. View historical data for Telephone and Data Systems and its competitors.
Is Telephone and Data Systems' Change In Inventory too high?
Telephone and Data Systems' current Change In Inventory is $1 Mil. Overall, Telephone and Data Systems has a GF Score™ of 65/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Telephone and Data Systems' Change In Inventory compare to LBRDA and IRDM?
Telephone and Data Systems' Change In Inventory of $1 Mil can be compared against companies in the Telecommunication Services 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 Telecommunication Services company?
A good Change In Inventory depends on the Telecommunication Services 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 Telephone and Data Systems and its competitors. Telephone and Data Systems's current Change In Inventory is $1 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Telephone and Data Systems stock overvalued right now?
Based on GuruFocus' analysis, Telephone and Data Systems (TDS) is currently considered Fairly Valued. The stock's GF Value™ is $31.54, compared to a current price of $34.32 — trading 8.8% above its estimated fair value. The current Change In Inventory is $1 Mil. Telephone and Data Systems' overall GF Score™ is 65/100 with 5 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 Telephone and Data Systems (TDS), the current Change In Inventory is $1 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 Telephone and Data Systems (TDS) Overvalued in 2026?

Based on GuruFocus' analysis, Telephone and Data Systems stock appears to be overvalued. The current stock price of $34.32 is trading 8.8% above its estimated GF Value™ of $31.54. GuruFocus considers Telephone and Data Systems to be Fairly Valued.

Key valuation signals for TDS:

  • Change In Inventory: $1 Mil
  • GF Value™: $31.54 vs. price of $34.32 (8.8% above fair value)
  • GF Score™: 65/100 with 5 warning signs

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

Telephone and Data Systems Business Description

Other Exchanges TDSpU.PFD:USA
Address 30 North LaSalle Street, Suite 4000, Chicago, IL, USA, 60602
Telephone and Data Systems Inc is a diversified telecommunications operator that provides communications services to customers through broadband, video, voice, and wireless connections. The company has two reportable segments: TDS Telecom and Array. The majority of its revenue is generated from the TDS Telecom segment, which generates revenue by providing broadband, video, voice, and wireless services. The Array segment generates its revenue mainly by leasing tower space on Array-owned towers to customers.
65GF Score

Get the complete analysis for TDS

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

$34.32
Price
$31.54
GF Value