Stock Price Trends

Lumen Technologies Inc (LUMN)

Lumen Technologies (formerly CenturyLink) is an American telecommunications company headquartered in Monroe, Louisiana, that offers communications, network services, security, cloud solutions, voice, and managed services.

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 70.98% per annum.
  • LUMN price at the close of May 17, 2024 was $1.32 and was higher than the top border of the primary price channel by $0.04 (3.06%). This indicates a possible reversal in the primary trend direction.
  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 14.51% per annum.
  • LUMN price at the close of May 17, 2024 was inside the secondary price channel.

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 LUMN 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: November 4, 2021
End date: February 9, 2024

a = 5.9482

b = -0.0034

s = 0.2409

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0034) – 1
= -70.98%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.2409) – 1
= 162.15%

November 4, 2021 calculations

Top border of price channel:

Exp(Y622)
= Exp(a + b × X622 + 2 × s)
= Exp(a + b × 899 + 2 × s)
= Exp(5.9482 + -0.0034 × 899 + 2 × 0.2409)
= Exp(3.3828)
= $29.45

Bottom border of price channel:

Exp(Y622)
= Exp(a + b × X622 – 2 × s)
= Exp(a + b × 899 – 2 × s)
= Exp(5.9482 + -0.0034 × 899 – 2 × 0.2409)
= Exp(2.4191)
= $11.24

February 9, 2024 calculations

Top border of price channel:

Exp(Y1,190)
= Exp(a + b × X1,190 + 2 × s)
= Exp(a + b × 1,726 + 2 × s)
= Exp(5.9482 + -0.0034 × 1,726 + 2 × 0.2409)
= Exp(0.5796)
= $1.79

Bottom border of price channel:

Exp(Y1,190)
= Exp(a + b × X1,190 – 2 × s)
= Exp(a + b × 1,726 – 2 × s)
= Exp(5.9482 + -0.0034 × 1,726 – 2 × 0.2409)
= Exp(-0.3841)
= $0.68

Description

  • The primary trend is decreasing.
  • The decline rate of the primary trend is 70.98% per annum.
  • LUMN price at the close of May 17, 2024 was $1.32 and was higher than the top border of the primary price channel by $0.04 (3.06%). This indicates a possible reversal in the primary trend direction.

Secondary Trend

Start date: July 14, 2023
End date: May 17, 2024

a = 1.1131

b = -0.0004

s = 0.1259

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0004) – 1
= -14.51%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.1259) – 1
= 65.44%

July 14, 2023 calculations

Top border of price channel:

Exp(Y1,045)
= Exp(a + b × X1,045 + 2 × s)
= Exp(a + b × 1,516 + 2 × s)
= Exp(1.1131 + -0.0004 × 1,516 + 2 × 0.1259)
= Exp(0.7136)
= $2.04

Bottom border of price channel:

Exp(Y1,045)
= Exp(a + b × X1,045 – 2 × s)
= Exp(a + b × 1,516 – 2 × s)
= Exp(1.1131 + -0.0004 × 1,516 – 2 × 0.1259)
= Exp(0.2102)
= $1.23

May 17, 2024 calculations

Top border of price channel:

Exp(Y1,258)
= Exp(a + b × X1,258 + 2 × s)
= Exp(a + b × 1,824 + 2 × s)
= Exp(1.1131 + -0.0004 × 1,824 + 2 × 0.1259)
= Exp(0.5813)
= $1.79

Bottom border of price channel:

Exp(Y1,258)
= Exp(a + b × X1,258 – 2 × s)
= Exp(a + b × 1,824 – 2 × s)
= Exp(1.1131 + -0.0004 × 1,824 – 2 × 0.1259)
= Exp(0.0779)
= $1.08

Description

  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 14.51% per annum.
  • LUMN price at the close of May 17, 2024 was inside the secondary price channel.