WAB (Westinghouse Air Brake Technologies) Change In Inventory: $-181 Mil (TTM As of Mar. 2026)

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WAB Westinghouse Air Brake Technologies Corp WAB
89 GF Score
Price $262.08
GF Value $214.09
Valuation Modestly Overvalued
! 7 Warning Signs
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What is Westinghouse Air Brake Technologies Change In Inventory?

Westinghouse Air Brake Technologies WAB -0.69% 89 Change In Inventory is $-181 Mil as of Mar. 2026. GuruFocus rates WAB with a GF Score™ of 89/100 and a GF Value™ of $214.09 (Modestly Overvalued). The stock has 7 warning signs investors should review.

Westinghouse Air Brake Technologies's change in inventory for the quarter that ended in Mar. 2026 was $-28 Mil. It means Westinghouse Air Brake Technologies's inventory increased by $28 Mil from Dec. 2025 to Mar. 2026 .

Westinghouse Air Brake Technologies's change in inventory for the fiscal year that ended in Dec. 2025 was $-182 Mil. It means Westinghouse Air Brake Technologies's inventory increased by $182 Mil from Dec. 2024 to Dec. 2025 .

Westinghouse Air Brake Technologies's Total Inventories for the quarter that ended in Mar. 2026 was $2,850 Mil.

Days Inventory indicates the number of days of goods in sales that a company has in the inventory. Westinghouse Air Brake Technologies's Days Inventory for the quarter that ended in Mar. 2026 was 135.14.

Inventory Turnover measures how fast the company turns over its inventory within a year. Westinghouse Air Brake Technologies's Inventory Turnover for the quarter that ended in Mar. 2026 was 0.68.

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. Westinghouse Air Brake Technologies's Inventory-to-Revenue for the quarter that ended in Mar. 2026 was 0.95.

Westinghouse Air Brake Technologies  (NYSE:WAB) Change In Inventory Explanation

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

Westinghouse Air Brake Technologies's Days Inventory for the quarter that ended in is calculated as:

Days Inventory=Average Total Inventories/Cost of Goods Sold*Days in Period
=2797.5/1889*365 / 4
=135.14

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

Westinghouse Air Brake Technologies's Inventory Turnover for the quarter that ended in Mar. 2026 is calculated as

Inventory Turnover=Cost of Goods Sold / Average Total Inventories
=1889 / 2797.5
=0.68

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.

Westinghouse Air Brake Technologies's Inventory to Revenue for the quarter that ended in Mar. 2026 is calculated as

Inventory-to-Revenue=Average Total Inventories / Revenue
=2797.5 / 2950
=0.95

* 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.

Westinghouse Air Brake Technologies Change In Inventory Related Terms

Westinghouse Air Brake Technologies Change In Inventory Historical Data

* Premium members only.

The historical data trend for Westinghouse Air Brake Technologies'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.

Westinghouse Air Brake Technologies Change In Inventory Chart

Westinghouse Air Brake Technologies 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 -41.00 -368.00 -58.00 -117.00 -182.00

Westinghouse Air Brake Technologies 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 -29.00 -151.00 -48.00 46.00 -28.00
WAB
89GF Score
Westinghouse Air Brake Technologies Corp WAB
Change In Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
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Westinghouse Air Brake Technologies 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 $-181 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 $-181 Mil mean?
Westinghouse Air Brake Technologies (WAB) has a Change In Inventory of $-181 Mil as of Mar. 2026. Change in Inventory is the difference between current-period inventory and past-period inventory. View historical data for Westinghouse Air Brake Technologies and its competitors.
Is Westinghouse Air Brake Technologies' Change In Inventory too high?
Westinghouse Air Brake Technologies' current Change In Inventory is $-181 Mil. Overall, Westinghouse Air Brake Technologies has a GF Score™ of 89/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Westinghouse Air Brake Technologies' Change In Inventory compare to NSC and CSX?
Westinghouse Air Brake Technologies' Change In Inventory of $-181 Mil can be compared against companies in the Transportation 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 Transportation company?
A good Change In Inventory depends on the Transportation 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 Westinghouse Air Brake Technologies and its competitors. Westinghouse Air Brake Technologies's current Change In Inventory is $-181 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Westinghouse Air Brake Technologies stock overvalued right now?
Based on GuruFocus' analysis, Westinghouse Air Brake Technologies (WAB) is currently considered Modestly Overvalued. The stock's GF Value™ is $214.09, compared to a current price of $262.08 — trading 22.4% above its estimated fair value. The current Change In Inventory is $-181 Mil. Westinghouse Air Brake Technologies' overall GF Score™ is 89/100 with 7 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 Westinghouse Air Brake Technologies (WAB), the current Change In Inventory is $-181 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 Westinghouse Air Brake Technologies (WAB) Overvalued in 2026?

Based on GuruFocus' analysis, Westinghouse Air Brake Technologies stock appears to be overvalued. The current stock price of $262.08 is trading 22.4% above its estimated GF Value™ of $214.09. GuruFocus considers Westinghouse Air Brake Technologies to be Modestly Overvalued.

Key valuation signals for WAB:

  • Change In Inventory: $-181 Mil
  • GF Value™: $214.09 vs. price of $262.08 (22.4% above fair value)
  • GF Score™: 89/100 with 7 warning signs

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

Westinghouse Air Brake Technologies Business Description

Address 30 Isabella Street, Pittsburgh, PA, USA, 15212
Westinghouse Air Brake Technologies Corp provides value-added, technology-based products and services for the freight rail and passenger transit industries and the mining, marine, and industrial markets. It provides its products and services through two main business segments: Freight and Transit. The company generates maximum revenue from the Freight segment, which manufactures new and modernized locomotives, provides aftermarket parts and services to existing locomotives, provides components to new and existing freight cars; builds new commuter locomotives; supplies rail control and infrastructure products, including electronics, positive train control equipment, signal design, and engineering services. Geographically, it generates a majority of its revenue from the United States.
89GF Score

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

$262.08
Price
$214.09
GF Value