Martin Marietta Materials (STU:MMX) Total Inventories: €1,049 Mil (As of Mar. 2026)

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STU:MMX Martin Marietta Materials Inc STU:MMX
93 GF Score
Price €483.40
GF Value €573.78
Valuation Modestly Undervalued
! 3 Warning Signs
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What is Martin Marietta Materials Total Inventories?

Martin Marietta Materials STU:MMX -1.59% 93 Total Inventories is €1,049 Mil as of Mar. 2026. GuruFocus rates STU:MMX with a GF Score™ of 93/100 and a GF Value™ of €573.78 (Modestly Undervalued). The stock has 3 warning signs investors should review.

Martin Marietta Materials's total inventories for the quarter that ended in Mar. 2026 was €1,049 Mil. Martin Marietta Materials's average total inventories from the quarter that ended in Dec. 2025 to the quarter that ended in Mar. 2026 was €985 Mil.

In Ben Graham's calculation of Net-Net Working Capital, inventory is only considered worth half of its book value. Martin Marietta Materials's Net-Net Working Capital per share for the quarter that ended in Mar. 2026 was €-111.46.

Days Inventory indicates the number of days of goods in sales that a company has in the inventory. Martin Marietta Materials's Days Inventory for the three months ended in Mar. 2026 was 98.77.

Inventory Turnover measures how fast the company turns over its inventory within a year. Martin Marietta Materials's Inventory Turnover for the quarter that ended in Mar. 2026 was 0.92.

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. Martin Marietta Materials's Inventory-to-Revenue for the quarter that ended in Mar. 2026 was 0.84.


Martin Marietta Materials  (STU:MMX) Total Inventories Explanation

Inventory control is an important part of business operation. If a company does not have enough inventory, it may not be able to meet customers' required delivery time. If it has too much inventory, the cost of holding the inventory can be high.

1. In Ben Graham's calculation of Net-Net Working Capital (NNWC), inventory is only considered worth half of its book value.

Martin Marietta Materials's Net-Net Working Capital Per Share for the quarter that ended in Mar. 2026 is

Net-Net Working Capital Per Share (Q: Mar. 2026 )
=(Cash And Cash Equivalents+0.75 * Accounts Receivable+0.5 * Total Inventories-Total Liabilities
-Preferred Stock-Minority Interest)/Shares Outstanding (EOP)
=(236.145+0.75 * 674.7+0.5 * 1049.245-7958
-0-1.73)/60.046
=-111.46

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

Martin Marietta Materials's Days Inventory for the three months ended in Mar. 2026 is calculated as:

Days Inventory=Average Total Inventories (Q: Mar. 2026 )/Cost of Goods Sold (Q: Mar. 2026 )*Days in Period
=984.9285/909.98*365 / 4
=98.77

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

Martin Marietta Materials's Inventory Turnover for the quarter that ended in Mar. 2026 is calculated as

Inventory Turnover=Cost of Goods Sold (Q: Mar. 2026 ) / Average Total Inventories (Q: Mar. 2026 )
=909.98 / 984.9285
=0.92

4. 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.

Martin Marietta Materials's Inventory to Revenue for the quarter that ended in Mar. 2026 is calculated as

Inventory-to-Revenue=Average Total Inventories (Q: Mar. 2026 ) / Revenue (Q: Mar. 2026 )
=984.9285 / 1178.13
=0.84

* 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

Manufacturers with durable competitive advantages have the advantage that the products they sell do not change, and therefore will never become obsolete. Buffett likes this advantage.

When identifying manufacturers with durable competitive advantage, look for inventory and net earnings that rise correspondingly. This indicates that the company is finding profitable ways to increase sales which called for an increase in inventory.

Manufacturers with inventories that spike up and down are indicative of competitive industries subject to boom and bust.


Martin Marietta Materials Total Inventories Related Terms


Martin Marietta Materials Total Inventories Historical Data

* Premium members only.

The historical data trend for Martin Marietta Materials's Total Inventories 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.

Martin Marietta Materials Total Inventories Chart

Martin Marietta Materials Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Total Inventories
Get a 7-Day Free Trial Premium Member Only Premium Member Only 666.05 824.77 906.91 972.19 920.61

Martin Marietta Materials Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Total Inventories 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 1,085.03 1,001.39 880.97 920.61 1,049.25
STU:MMX
93GF Score
Martin Marietta Materials Inc STU:MMX
Total Inventories is just one metric. See GF Score™, valuation, warning signs, and more.
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Martin Marietta Materials Total Inventories Calculation

Total Inventories includes the raw materials, work-in-process goods and completely finished goods of a company. It is a portion of a company's current assets.

Frequently Asked Questions Learn more about Total Inventories →
What does a Total Inventories of €1,049 Mil mean?
Martin Marietta Materials (STU:MMX) has a Total Inventories of €1,049 Mil as of Mar. 2026. The total amount of inventory as recorded on a company's balance sheet. View historical data for Martin Marietta Materials and its competitors.
Is Martin Marietta Materials' Total Inventories too high?
Martin Marietta Materials' current Total Inventories is €1,049 Mil. Overall, Martin Marietta Materials has a GF Score™ of 93/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Martin Marietta Materials' Total Inventories compare to VMC and JHX?
Martin Marietta Materials' Total Inventories of €1,049 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 Total Inventories for a Building Materials company?
A good Total Inventories depends on the Building Materials industry context. However, Total Inventories 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 Total Inventories mean?
A high Total Inventories can signal that a stock is expensive relative to its fundamentals. The total amount of inventory as recorded on a company's balance sheet. View historical data for Martin Marietta Materials and its competitors. Martin Marietta Materials's current Total Inventories is €1,049 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Martin Marietta Materials stock overvalued right now?
Based on GuruFocus' analysis, Martin Marietta Materials (STU:MMX) is currently considered Modestly Undervalued. The stock's GF Value™ is €573.78, compared to a current price of €483.40 — trading 15.8% below its estimated fair value. The current Total Inventories is €1,049 Mil. Martin Marietta Materials' overall GF Score™ is 93/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Total Inventories calculated?
Total Inventories is calculated from a company's financial statements. For Martin Marietta Materials (STU:MMX), the current Total Inventories is €1,049 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 Martin Marietta Materials (STU:MMX) Overvalued in 2026?

Based on GuruFocus' analysis, Martin Marietta Materials stock appears to be undervalued. The current stock price of €483.40 is trading 15.8% below its estimated GF Value™ of €573.78. GuruFocus considers Martin Marietta Materials to be Modestly Undervalued.

Key valuation signals for STU:MMX:

  • Total Inventories: €1,049 Mil
  • GF Value™: €573.78 vs. price of €483.40 (15.8% below fair value)
  • GF Score™: 93/100 with 3 warning signs

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


Martin Marietta Materials Business Description

Address 4123 Parklake Avenue, Raleigh, NC, USA, 27612
Martin Marietta Materials is one of the United States' largest producer of construction aggregates (crushed stone, sand, and gravel). In 2024, Martin Marietta sold 191 million tons of aggregates. Martin Marietta's most important markets include Texas, North Carolina, Colorado, California, and Georgia, accounting for most of its sales. The company also uses its aggregates in its asphalt and ready-mixed concrete businesses. Martin's magnesia specialties business produces magnesia-based chemical products and dolomitic lime.
93GF Score

Get the complete analysis for STU:MMX

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

€483.40
Price
€573.78
GF Value