Stock Price Trends

American Tower Corp (AMT)

American Tower Corporation (AMT) is a leading real estate investment trust (REIT) that specializes in owning and operating a diversified portfolio of wireless and broadcast communications infrastructure across multiple countries. Headquartered in Boston, Massachusetts, the company plays a critical role in facilitating wireless communications by providing essential assets, such as cellular towers, to telecommunications providers and broadcasters. With a strong focus on expanding its global footprint, American Tower is strategically positioned to benefit from the increasing demand for mobile connectivity and the ongoing evolution of communication technologies, making it a compelling investment opportunity for institutional investors.

Stock Price Trends

Stock price trends estimated using linear regression.

Key facts

  • The primary trend is decreasing.
  • The decline rate of the primary trend is 40.11% per annum.
  • AMT price at the close of December 19, 2025 was $172.41 and was inside the primary price channel.
  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 8.98% per annum.
  • AMT price at the close of December 19, 2025 was lower than the bottom border of the secondary price channel by $1.17 (0.67%).

Linear Regression Model

Model equation:
Yi = α + β × Xi + εi

Top border of price channel:
Exp(Yi) = Exp(a + b × Xi + 2 × s)

Bottom border of price channel:
Exp(Yi) = Exp(a + b × Xi – 2 × s)

where:

i - observation number
Yi - natural logarithm of AMT price
Xi - time index, 1 day interval
σ - standard deviation of εi
a - estimator of α
b - estimator of β
s - estimator of σ
Exp() - calculates the exponent of e


Primary Trend

Start date: June 20, 2025
End date: December 19, 2025

a = 7.7124

b = -0.0014

s = 0.0250

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0014) – 1
= -40.11%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0250) – 1
= 10.52%

June 20, 2025 calculations

Top border of price channel:

Exp(Y1,127)
= Exp(a + b × X1,127 + 2 × s)
= Exp(a + b × 1,641 + 2 × s)
= Exp(7.7124 + -0.0014 × 1,641 + 2 × 0.0250)
= Exp(5.4573)
= $234.47

Bottom border of price channel:

Exp(Y1,127)
= Exp(a + b × X1,127 – 2 × s)
= Exp(a + b × 1,641 – 2 × s)
= Exp(7.7124 + -0.0014 × 1,641 – 2 × 0.0250)
= Exp(5.3573)
= $212.16

December 19, 2025 calculations

Top border of price channel:

Exp(Y1,254)
= Exp(a + b × X1,254 + 2 × s)
= Exp(a + b × 1,823 + 2 × s)
= Exp(7.7124 + -0.0014 × 1,823 + 2 × 0.0250)
= Exp(5.2017)
= $181.58

Bottom border of price channel:

Exp(Y1,254)
= Exp(a + b × X1,254 – 2 × s)
= Exp(a + b × 1,823 – 2 × s)
= Exp(7.7124 + -0.0014 × 1,823 – 2 × 0.0250)
= Exp(5.1017)
= $164.30

Description

  • The primary trend is decreasing.
  • The decline rate of the primary trend is 40.11% per annum.
  • AMT price at the close of December 19, 2025 was $172.41 and was inside the primary price channel.

Secondary Trend

Start date: October 28, 2025
End date: December 19, 2025

a = 5.6538

b = -0.0003

s = 0.0136

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0003) – 1
= -8.98%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0136) – 1
= 5.60%

October 28, 2025 calculations

Top border of price channel:

Exp(Y1,217)
= Exp(a + b × X1,217 + 2 × s)
= Exp(a + b × 1,771 + 2 × s)
= Exp(5.6538 + -0.0003 × 1,771 + 2 × 0.0136)
= Exp(5.2245)
= $185.77

Bottom border of price channel:

Exp(Y1,217)
= Exp(a + b × X1,217 – 2 × s)
= Exp(a + b × 1,771 – 2 × s)
= Exp(5.6538 + -0.0003 × 1,771 – 2 × 0.0136)
= Exp(5.1700)
= $175.92

December 19, 2025 calculations

Top border of price channel:

Exp(Y1,254)
= Exp(a + b × X1,254 + 2 × s)
= Exp(a + b × 1,823 + 2 × s)
= Exp(5.6538 + -0.0003 × 1,823 + 2 × 0.0136)
= Exp(5.2111)
= $183.30

Bottom border of price channel:

Exp(Y1,254)
= Exp(a + b × X1,254 – 2 × s)
= Exp(a + b × 1,823 – 2 × s)
= Exp(5.6538 + -0.0003 × 1,823 – 2 × 0.0136)
= Exp(5.1566)
= $173.58

Description

  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 8.98% per annum.
  • AMT price at the close of December 19, 2025 was lower than the bottom border of the secondary price channel by $1.17 (0.67%).