American Tower Corp
NYSE: AMT · REAL ESTATE · REIT - SPECIALTY
Updated 2026-04-29
American Tower Corp (AMT) Stock Valuation Analysis
Fair value estimate, historical valuation range, and quality signals for AMT.
Valued
Valuation reasonably reflects current fundamentals. Limited margin of safety at these levels.
AMT historical valuation range
Where current P/E sits in AMT's own 5Y range.
AMT intrinsic value (DCF)
DCF-based fair value estimate vs current market price.
Intrinsic value calculated using discounted cash flow (DCF) model based on projected free cash flows, discount rate, and terminal growth assumptions. A positive margin of safety indicates the current price is below estimated fair value, providing a cushion against estimation error.
AMT valuation signals
Quick-read green flags, caution flags, and risks based on current metrics.
P/E Ratio — History
Current: 29.47x
P/S Ratio — History
Current: 7.87x
Is AMT overvalued in 2026?
American Tower Corp (AMT) currently trades at $178.19 per share with a market capitalization of $85,123,326,000.00. Based on our multi-factor framework, the stock trades at a fair valuation with a Smart Value Score of 72/100. This score blends growth quality, financial health, and price attractiveness into a single institutional-grade read.
The stock trades at a P/E ratio of 29.5x, below its 5-year median of 42.8x. The PEG ratio of 1.97 points to a price that reasonably reflects expected earnings growth.
Looking at its own history, AMT is currently trading cheaper than 96% of the last 5Y on P/E. This places it in the 4th percentile of its historical range, a level that has historically coincided with attractive entry points.
Our discounted cash flow model estimates AMT's intrinsic value at $219.10 per share, against the current market price of $178.19. This implies a margin of safety of +17.63%. A meaningful cushion exists against model error, making this a reasonable risk-adjusted entry.
The Piotroski F-Score of 4/9 puts financial quality in a middling range, neither a standout strength nor an obvious red flag.
Bottom line: AMT trades at a fair valuation on our framework, with a Smart Value Score of 72/100. The valuation is defensible but offers no obvious bargain. Patience or a better entry price may reward disciplined buyers.
Frequently asked questions
Is AMT overvalued in 2026?
Based on a Smart Value Score of 72/100, AMT is fairly valued. Price reasonably reflects current fundamentals with limited cushion in either direction.
What is AMT's fair value?
Our DCF model estimates AMT's intrinsic value at $219.10 per share, versus the current price of $178.19. This produces a margin of safety of +17.63%.
What P/E ratio does AMT trade at?
AMT trades at a P/E of 29.5x on trailing twelve-month earnings, compared to its 5-year median of 42.8x.
Is AMT a buy based on valuation?
WallStSmart does not issue buy or sell recommendations. Our Smart Value Score of 72/100 reflects the combined read on growth, quality, and price. The profile is balanced. Best suited for investors with an existing thesis.
How does AMT's valuation compare to its history?
On P/E, AMT currently sits in the 4th percentile of its own 5Y range. That is historically cheap relative to where it has traded over the period.
What is AMT's Smart Value Score?
AMT's Smart Value Score is 72/100. The Smart Value Score is a proprietary WallStSmart metric blending growth quality, financial health, and valuation attractiveness into a single 0-100 read. Scores above 75 are rare and indicate strong multi-factor alignment.