Stock Price Trends

Public Storage (PSA)

Public Storage is an American international self storage company headquartered in Glendale, California, that is run as a real estate investment trust (REIT).

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 6.06% per annum.
  • PSA price at the close of July 25, 2024 was $294.92 and was inside the primary price channel.
  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 77.59% per annum.
  • PSA price at the close of July 25, 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 PSA 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: October 14, 2021
End date: June 17, 2024

a = 5.8688

b = -0.0002

s = 0.0657

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0002) – 1
= -6.06%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0657) – 1
= 30.05%

October 14, 2021 calculations

Top border of price channel:

Exp(Y560)
= Exp(a + b × X560 + 2 × s)
= Exp(a + b × 811 + 2 × s)
= Exp(5.8688 + -0.0002 × 811 + 2 × 0.0657)
= Exp(5.8612)
= $351.14

Bottom border of price channel:

Exp(Y560)
= Exp(a + b × X560 – 2 × s)
= Exp(a + b × 811 – 2 × s)
= Exp(5.8688 + -0.0002 × 811 – 2 × 0.0657)
= Exp(5.5984)
= $270.01

June 17, 2024 calculations

Top border of price channel:

Exp(Y1,231)
= Exp(a + b × X1,231 + 2 × s)
= Exp(a + b × 1,788 + 2 × s)
= Exp(5.8688 + -0.0002 × 1,788 + 2 × 0.0657)
= Exp(5.6937)
= $297.00

Bottom border of price channel:

Exp(Y1,231)
= Exp(a + b × X1,231 – 2 × s)
= Exp(a + b × 1,788 – 2 × s)
= Exp(5.8688 + -0.0002 × 1,788 – 2 × 0.0657)
= Exp(5.4310)
= $228.37

Description

  • The primary trend is decreasing.
  • The decline rate of the primary trend is 6.06% per annum.
  • PSA price at the close of July 25, 2024 was $294.92 and was inside the primary price channel.

Secondary Trend

Start date: April 15, 2024
End date: July 25, 2024

a = 2.8351

b = 0.0016

s = 0.0231

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0016) – 1
= 77.59%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0231) – 1
= 9.68%

April 15, 2024 calculations

Top border of price channel:

Exp(Y1,187)
= Exp(a + b × X1,187 + 2 × s)
= Exp(a + b × 1,725 + 2 × s)
= Exp(2.8351 + 0.0016 × 1,725 + 2 × 0.0231)
= Exp(5.5955)
= $269.22

Bottom border of price channel:

Exp(Y1,187)
= Exp(a + b × X1,187 – 2 × s)
= Exp(a + b × 1,725 – 2 × s)
= Exp(2.8351 + 0.0016 × 1,725 – 2 × 0.0231)
= Exp(5.5031)
= $245.46

July 25, 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(2.8351 + 0.0016 × 1,826 + 2 × 0.0231)
= Exp(5.7544)
= $315.59

Bottom border of price channel:

Exp(Y1,257)
= Exp(a + b × X1,257 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(2.8351 + 0.0016 × 1,826 – 2 × 0.0231)
= Exp(5.6621)
= $287.74

Description

  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 77.59% per annum.
  • PSA price at the close of July 25, 2024 was inside the secondary price channel.