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.
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.
3-1 Month Momentum % is the total return of the stock from 3-month ago to 1-month ago. As of today (2026-07-18), American Tower's 3-1 Month Momentum % is -0.70%.
The industry rank for American Tower's 3-1 Month Momentum % or its related term are showing as below:
AMT's 3-1 Month Momentum % is ranked better than 75.32% of 944
companies
in the REITs industry
Industry Median: -1.45
vs AMT: -0.70
American Tower (NYSE:AMT) 3-1 Month Momentum % Explanation
Momentum investing is a trading strategy in which investors buy securities that are rising and sell before the prices start to go back down. The 3-1 Month Momentum % measures the total return to a stock over the past three months, but ignores the previous month.
The reason why the most recent month’s return dropped related to the short-term reversal effect associated with momentum. There is an academic finding that short-term momentum actually has a reversal effect, whereby the previous winners (measured over the past months) do poorly the next month, while the previous losers do well the next month. In order to eliminate the short-term reversal effect, the previous month return was not included in this calculation.
American Tower 3-1 Month Momentum % Related Terms
AMT vs DLR, EQIX, IRM: 3-1 Month Momentum % Comparison
For the REIT - Specialty subindustry, American Tower's 3-1 Month Momentum %, along with its competitors' market caps and 3-1 Month Momentum % data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
American Tower 3-1 Month Momentum % vs REITs Industry
For the REITs industry and Real Estate sector, American Tower's 3-1 Month Momentum % distribution charts can be found below:
* The bar in red indicates where American Tower's 3-1 Month Momentum % falls into.
American Tower (NYSE:AMT) 3-1 Month Momentum % Calculation
3-1 Month Momentum % is calculated as following:
3-1 Month Momentum %
=
( Price 1-month ago
/
Price 3-month ago
- 1 )
*
100 %
* 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 (AMT) has a 3-1 Month Momentum % of -0.70% as of Jul. 18, 2026. 3-1 Month Momentum measures the total return of the stock from 3-month ago to 1-month ago. View historical data on American Tower and its competitors. According to the industry distribution chart, American Tower ranks #233 out of 944 companies in the REITs industry, placing it in the top 24.7%.
Is American Tower's 3-1 Month Momentum % too high?
American Tower's current 3-1 Month Momentum % is -0.70%. Based on the distribution chart, American Tower ranks #233 out of 944 companies in the REITs industry, which is in the top quartile — a strong position relative to peers. 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 3-1 Month Momentum % compare to DLR and EQIX?
According to the REITs industry distribution chart, American Tower ranks #233 out of 944 companies for 3-1 Month Momentum %. This places American Tower in the top 25% of its industry — outperforming the majority of peers. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 3-1 Month Momentum % for a REITs company?
A good 3-1 Month Momentum % depends on the REITs industry context. However, 3-1 Month Momentum % 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 3-1 Month Momentum % mean?
A high 3-1 Month Momentum % can signal that a stock is expensive relative to its fundamentals. 3-1 Month Momentum measures the total return of the stock from 3-month ago to 1-month ago. View historical data on American Tower and its competitors. American Tower's current 3-1 Month Momentum % is -0.70%. 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 $207.47, compared to a current price of $170.06 — trading 18% below its estimated fair value. The current 3-1 Month Momentum % is -0.70%. 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 3-1 Month Momentum % calculated?
3-1 Month Momentum % is calculated from a company's financial statements. For American Tower (AMT), the current 3-1 Month Momentum % is -0.70% as of Jul. 18, 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 $170.06 is trading 18% below its estimated GF Value™ of $207.47.
GuruFocus considers American Tower to be Modestly Undervalued.
Key valuation signals for AMT:
3-1 Month Momentum %: -0.70%
GF Value™: $207.47 vs. price of $170.06 (18% 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
Get the complete analysis for AMT
3-1 Month Momentum % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
AMT has been successfully added to your 
