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American Tower's change in working capital for the quarter that ended in Mar. 2026 was $-114 Mil.
American Tower's change in working capital for the fiscal year that ended in Dec. 2025 was $-167 Mil.
It is calculated by adding the items under "Change in operating assets and liabilities" (may refer to a different name for different company) section in Cash Flow Statement. Not by calculating the number changes in each periods' working capital (Total Current Assets minus Total Current Liabilities).
American Tower Change In Working Capital Related Terms
American Tower Change In Working Capital Historical Data
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The historical data trend for American Tower's Change In Working Capital 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.
American Tower Change In Working Capital Calculation
Change In Working Capital 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 $-164 Mil.
Working Capital is a measure of a company's short term liquidity or its ability to cover short term liabilities. It is defined as the difference between a company's current assets and current liabilities.
Changes in Working Capital is reported in the cash flow statement since it is one of the major ways in which net income can differ from operating cash flow. It is calculated by adding the items under "Change in operating assets and liabilities" (may refer to a different name for different company) section in Cash Flow Statement.
Changes in certain assets and liabilities, net of effects of acquisitions:
Receivables, net
(566)
(614)
(796)
Inventories
(1,667)
(2,759)
(3,727)
Accounts payable
531
1,061
2,687
Accrued liabilities
103
271
(935)
Accrued income taxes
(1,224)
981
994
For 2014-01-31, add all the items under 2014 collum together, Change in Working Capital was (566) + (1,667) + 531 + 103 + (1,224) = $ (2,823) 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.
What does a Change In Working Capital of $-164 Mil mean?
American Tower (AMT) has a Change In Working Capital of $-164 Mil as of Mar. 2026. Change in Working Capital is the difference between current assets less current liabilities between the current period and the past period. View historical data for American Tower.
Is American Tower's Change In Working Capital too high?
American Tower's current Change In Working Capital is $-164 Mil. Overall, American Tower has a GF Score™ of 77/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does American Tower's Change In Working Capital compare to DLR and EQIX?
American Tower's Change In Working Capital of $-164 Mil can be compared against companies in the REITs 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 Working Capital for a REITs company?
A good Change In Working Capital depends on the REITs industry context. However, Change In Working Capital 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 Working Capital mean?
A high Change In Working Capital can signal that a stock is expensive relative to its fundamentals. Change in Working Capital is the difference between current assets less current liabilities between the current period and the past period. View historical data for American Tower. American Tower's current Change In Working Capital is $-164 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is American Tower stock overvalued right now?
Based on GuruFocus' analysis, American Tower (AMT) is currently considered Modestly Undervalued. The stock's GF Value™ is $208.60, compared to a current price of $175.58 — trading 15.8% below its estimated fair value. The current Change In Working Capital is $-164 Mil. American Tower's overall GF Score™ is 77/100 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 Working Capital calculated?
Change In Working Capital is calculated from a company's financial statements. For American Tower (AMT), the current Change In Working Capital is $-164 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 American Tower (AMT) Overvalued in 2026?
Based on GuruFocus' analysis, American Tower stock appears to be undervalued.
The current stock price of $175.58 is trading 15.8% below its estimated GF Value™ of $208.60.
GuruFocus considers American Tower to be Modestly Undervalued.
Key valuation signals for AMT:
Change In Working Capital: $-164 Mil
GF Value™: $208.60 vs. price of $175.58 (15.8% below fair value)
No single metric tells the full story. See the AMT stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
American Tower owns and operates about 150,000 wireless towers throughout the US, Asia, Latin America, Europe, and Africa. It also owns and/or operates 30 data centers in 11 US markets through its CoreSite segment. The company's customer base in the tower business is very concentrated, with most revenue in each market generated by the top three or four mobile carriers. The company operates 42,000 towers in the US, which accounted for about half of total revenue in 2025. Outside the US, American Tower operates about 47,000 towers in Latin America (dominated by Brazil), 33,000 towers in Europe, and 28,000 towers in Africa. American Tower operates as a REIT.
77GF Score
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Change In Working Capital is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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