Stock Price Trends

Comcast Corp (CMCSA)

Comcast Corporation is an American telecommunications conglomerate headquartered in Philadelphia, Pennsylvania. It is the second-largest broadcasting and cable television company in the world by revenue (behind AT&T), the largest pay-TV company, the largest cable TV company and largest home Internet service provider in the United States, and the nation's third-largest home telephone service provider. Comcast provides services to U.S. residential and commercial customers in 40 states and in the District of Columbia. As the parent company of the international media company NBCUniversal since 2011, Comcast is a producer of feature films and television programs intended for theatrical exhibition and over-the-air and cable television broadcast, respectively.

Stock Price Trends

Stock price trends estimated using linear regression.

Key facts

  • The primary trend is increasing.
  • The growth rate of the primary trend is 41.17% per annum.
  • CMCSA price at the close of November 20, 2024 was $42.99 and was inside the primary price channel.
  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 70.96% per annum.
  • CMCSA price at the close of November 20, 2024 was inside the secondary price channel.
  • The direction of the secondary trend is opposite to the direction of the primary trend. This indicates a possible reversal in the direction of the primary trend.

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 CMCSA 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 11, 2024
End date: November 20, 2024

a = 2.0383

b = 0.0009

s = 0.0212

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0009) – 1
= 41.17%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0212) – 1
= 8.86%

June 11, 2024 calculations

Top border of price channel:

Exp(Y1,144)
= Exp(a + b × X1,144 + 2 × s)
= Exp(a + b × 1,664 + 2 × s)
= Exp(2.0383 + 0.0009 × 1,664 + 2 × 0.0212)
= Exp(3.6526)
= $38.58

Bottom border of price channel:

Exp(Y1,144)
= Exp(a + b × X1,144 – 2 × s)
= Exp(a + b × 1,664 – 2 × s)
= Exp(2.0383 + 0.0009 × 1,664 – 2 × 0.0212)
= Exp(3.5678)
= $35.44

November 20, 2024 calculations

Top border of price channel:

Exp(Y1,257)
= Exp(a + b × X1,257 + 2 × s)
= Exp(a + b × 1,826 + 2 × s)
= Exp(2.0383 + 0.0009 × 1,826 + 2 × 0.0212)
= Exp(3.8057)
= $44.95

Bottom border of price channel:

Exp(Y1,257)
= Exp(a + b × X1,257 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(2.0383 + 0.0009 × 1,826 – 2 × 0.0212)
= Exp(3.7208)
= $41.30

Description

  • The primary trend is increasing.
  • The growth rate of the primary trend is 41.17% per annum.
  • CMCSA price at the close of November 20, 2024 was $42.99 and was inside the primary price channel.

Secondary Trend

Start date: November 6, 2024
End date: November 20, 2024

a = 9.9382

b = -0.0034

s = 0.0088

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0034) – 1
= -70.96%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0088) – 1
= 3.56%

November 6, 2024 calculations

Top border of price channel:

Exp(Y1,247)
= Exp(a + b × X1,247 + 2 × s)
= Exp(a + b × 1,812 + 2 × s)
= Exp(9.9382 + -0.0034 × 1,812 + 2 × 0.0088)
= Exp(3.8171)
= $45.47

Bottom border of price channel:

Exp(Y1,247)
= Exp(a + b × X1,247 – 2 × s)
= Exp(a + b × 1,812 – 2 × s)
= Exp(9.9382 + -0.0034 × 1,812 – 2 × 0.0088)
= Exp(3.7821)
= $43.91

November 20, 2024 calculations

Top border of price channel:

Exp(Y1,257)
= Exp(a + b × X1,257 + 2 × s)
= Exp(a + b × 1,826 + 2 × s)
= Exp(9.9382 + -0.0034 × 1,826 + 2 × 0.0088)
= Exp(3.7697)
= $43.37

Bottom border of price channel:

Exp(Y1,257)
= Exp(a + b × X1,257 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(9.9382 + -0.0034 × 1,826 – 2 × 0.0088)
= Exp(3.7346)
= $41.87

Description

  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 70.96% per annum.
  • CMCSA price at the close of November 20, 2024 was inside the secondary price channel.