Stock Price Trends

Sealed Air Corporation (SEE)

Sealed Air Corporation is a packaging company known for its brands: Cryovac food packaging and Bubble Wrap cushioning packaging.

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 26.58% per annum.
  • SEE price at the close of November 20, 2024 was $35.06 and was higher than the top border of the primary price channel by $4.11 (13.29%). This indicates a possible reversal in the primary trend direction.
  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 8.80% per annum.
  • SEE 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 SEE 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 20, 2021
End date: May 3, 2024

a = 4.8020

b = -0.0008

s = 0.0879

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0008) – 1
= -26.58%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0879) – 1
= 42.15%

October 20, 2021 calculations

Top border of price channel:

Exp(Y481)
= Exp(a + b × X481 + 2 × s)
= Exp(a + b × 699 + 2 × s)
= Exp(4.8020 + -0.0008 × 699 + 2 × 0.0879)
= Exp(4.3862)
= $80.33

Bottom border of price channel:

Exp(Y481)
= Exp(a + b × X481 – 2 × s)
= Exp(a + b × 699 – 2 × s)
= Exp(4.8020 + -0.0008 × 699 – 2 × 0.0879)
= Exp(4.0345)
= $56.51

May 3, 2024 calculations

Top border of price channel:

Exp(Y1,118)
= Exp(a + b × X1,118 + 2 × s)
= Exp(a + b × 1,625 + 2 × s)
= Exp(4.8020 + -0.0008 × 1,625 + 2 × 0.0879)
= Exp(3.6024)
= $36.69

Bottom border of price channel:

Exp(Y1,118)
= Exp(a + b × X1,118 – 2 × s)
= Exp(a + b × 1,625 – 2 × s)
= Exp(4.8020 + -0.0008 × 1,625 – 2 × 0.0879)
= Exp(3.2507)
= $25.81

Description

  • The primary trend is decreasing.
  • The decline rate of the primary trend is 26.58% per annum.
  • SEE price at the close of November 20, 2024 was $35.06 and was higher than the top border of the primary price channel by $4.11 (13.29%). This indicates a possible reversal in the primary trend direction.

Secondary Trend

Start date: August 16, 2023
End date: November 20, 2024

a = 3.1680

b = 0.0002

s = 0.0579

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0002) – 1
= 8.80%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0579) – 1
= 26.05%

August 16, 2023 calculations

Top border of price channel:

Exp(Y938)
= Exp(a + b × X938 + 2 × s)
= Exp(a + b × 1,364 + 2 × s)
= Exp(3.1680 + 0.0002 × 1,364 + 2 × 0.0579)
= Exp(3.5990)
= $36.56

Bottom border of price channel:

Exp(Y938)
= Exp(a + b × X938 – 2 × s)
= Exp(a + b × 1,364 – 2 × s)
= Exp(3.1680 + 0.0002 × 1,364 – 2 × 0.0579)
= Exp(3.3676)
= $29.01

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(3.1680 + 0.0002 × 1,826 + 2 × 0.0579)
= Exp(3.7058)
= $40.68

Bottom border of price channel:

Exp(Y1,257)
= Exp(a + b × X1,257 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(3.1680 + 0.0002 × 1,826 – 2 × 0.0579)
= Exp(3.4743)
= $32.28

Description

  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 8.80% per annum.
  • SEE price at the close of November 20, 2024 was inside the secondary price channel.