Ibstock (LSE:IBST) Change In Inventory: £-24.2 Mil (TTM As of Dec. 2025)

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.

LSE:IBST Ibstock PLC LSE:IBST
66 GF Score
Price £0.96
GF Value £1.32
Valuation Modestly Undervalued
! 5 Warning Signs
View Full Analysis

What is Ibstock Change In Inventory?

Ibstock LSE:IBST -1.04% 66 Change In Inventory is £-24.2 Mil as of Dec. 2025. GuruFocus rates LSE:IBST with a GF Score™ of 66/100 and a GF Value™ of £1.32 (Modestly Undervalued). The stock has 5 warning signs investors should review.

Ibstock's change in inventory for the quarter that ended in Dec. 2025 was £-20.2 Mil. It means Ibstock's inventory increased by £20.2 Mil from Jun. 2025 to Dec. 2025 .

Ibstock's change in inventory for the fiscal year that ended in Dec. 2025 was £-24.2 Mil. It means Ibstock's inventory increased by £24.2 Mil from Dec. 2024 to Dec. 2025 .

Ibstock's Total Inventories for the quarter that ended in Dec. 2025 was £137.4 Mil.

Days Inventory indicates the number of days of goods in sales that a company has in the inventory. Ibstock's Days Inventory for the quarter that ended in Dec. 2025 was 179.79.

Inventory Turnover measures how fast the company turns over its inventory within a year. Ibstock's Inventory Turnover for the quarter that ended in Dec. 2025 was 1.02.

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. Ibstock's Inventory-to-Revenue for the quarter that ended in Dec. 2025 was 0.75.


Ibstock  (LSE:IBST) Change In Inventory Explanation

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

Ibstock's Days Inventory for the quarter that ended in is calculated as:

Days Inventory=Average Total Inventories/Cost of Goods Sold*Days in Period
=133.1435/135.149*365 / 2
=179.79

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

Ibstock's Inventory Turnover for the quarter that ended in Dec. 2025 is calculated as

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.

Ibstock's Inventory to Revenue for the quarter that 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.


Ibstock Change In Inventory Related Terms


Ibstock Change In Inventory Historical Data

* Premium members only.

The historical data trend for Ibstock'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.

Ibstock Change In Inventory Chart

Ibstock 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 -9.44 -21.26 -28.50 -5.63 -24.20

Ibstock Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
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 -8.96 2.56 -8.19 -4.02 -20.18
LSE:IBST
66GF Score
Ibstock PLC LSE:IBST
Change In Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Ibstock 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 Dec. 2025 adds up the semi-annually data reported by the company within the most recent 12 months, which was £-24.2 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 £-24.2 Mil mean?
Ibstock (LSE:IBST) has a Change In Inventory of £-24.2 Mil as of Dec. 2025. Change in Inventory is the difference between current-period inventory and past-period inventory. View historical data for Ibstock and its competitors.
Is Ibstock's Change In Inventory too high?
Ibstock's current Change In Inventory is £-24.2 Mil. Overall, Ibstock has a GF Score™ of 66/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Ibstock's Change In Inventory compare to CRH and VMC?
Ibstock's Change In Inventory of £-24.2 Mil can be compared against companies in the Building Materials 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 Building Materials company?
A good Change In Inventory depends on the Building Materials 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 Ibstock and its competitors. Ibstock's current Change In Inventory is £-24.2 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ibstock stock overvalued right now?
Based on GuruFocus' analysis, Ibstock (LSE:IBST) is currently considered Modestly Undervalued. The stock's GF Value™ is £1.32, compared to a current price of £0.96 — trading 27.6% below its estimated fair value. The current Change In Inventory is £-24.2 Mil. Ibstock's overall GF Score™ is 66/100 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 Ibstock (LSE:IBST), the current Change In Inventory is £-24.2 Mil 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 Ibstock (LSE:IBST) Overvalued in 2026?

Based on GuruFocus' analysis, Ibstock stock appears to be undervalued. The current stock price of £0.96 is trading 27.6% below its estimated GF Value™ of £1.32. GuruFocus considers Ibstock to be Modestly Undervalued.

Key valuation signals for LSE:IBST:

  • Change In Inventory: £-24.2 Mil
  • GF Value™: £1.32 vs. price of £0.96 (27.6% below fair value)
  • GF Score™: 66/100 with 5 warning signs

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


Ibstock Business Description

Other Exchanges IBSTl:UK2I5:Germany
Address Leicester Road, Ibstock, Leicestershire, GBR, LE67 6HS
Ibstock PLC is a manufacturer of building products with a varied range of clay and concrete products and solutions to customers in the UK residential construction sector. Its product range includes clay bricks, brick components, concrete roof tiles, concrete stone masonry substitutes, concrete fencing, pre-stressed concrete products, and concrete rail products. The company's operating segment includes Clay and Concrete. It generates maximum revenue from the Clay segment.
66GF Score

Get the complete analysis for LSE:IBST

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

£0.96
Price
£1.32
GF Value