Stock Price Trends

SPX Corp (SPXC)

SPX Corporation supplies infrastructure equipment for the heating, ventilation and cooling (HVAC), sensing and measurement, power transmission and generation, and industrial markets in the United States, China, South Africa, the United Kingdom, and internationally. The company is headquartered in Charlotte, North Carolina.

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 59.86% per annum.
  • SPXC price at the close of April 3, 2025 was $126.84 and was lower than the bottom border of the primary price channel by $33.16 (20.72%). This indicates a possible reversal in the primary trend direction.
  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 33.84% per annum.
  • SPXC price at the close of April 3, 2025 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 SPXC 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: February 23, 2022
End date: December 17, 2024

a = 2.8992

b = 0.0013

s = 0.0835

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0013) – 1
= 59.86%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0835) – 1
= 39.65%

February 23, 2022 calculations

Top border of price channel:

Exp(Y475)
= Exp(a + b × X475 + 2 × s)
= Exp(a + b × 688 + 2 × s)
= Exp(2.8992 + 0.0013 × 688 + 2 × 0.0835)
= Exp(3.9504)
= $51.96

Bottom border of price channel:

Exp(Y475)
= Exp(a + b × X475 – 2 × s)
= Exp(a + b × 688 – 2 × s)
= Exp(2.8992 + 0.0013 × 688 – 2 × 0.0835)
= Exp(3.6164)
= $37.20

December 17, 2024 calculations

Top border of price channel:

Exp(Y1,183)
= Exp(a + b × X1,183 + 2 × s)
= Exp(a + b × 1,716 + 2 × s)
= Exp(2.8992 + 0.0013 × 1,716 + 2 × 0.0835)
= Exp(5.2716)
= $194.73

Bottom border of price channel:

Exp(Y1,183)
= Exp(a + b × X1,183 – 2 × s)
= Exp(a + b × 1,716 – 2 × s)
= Exp(2.8992 + 0.0013 × 1,716 – 2 × 0.0835)
= Exp(4.9377)
= $139.44

Description

  • The primary trend is increasing.
  • The growth rate of the primary trend is 59.86% per annum.
  • SPXC price at the close of April 3, 2025 was $126.84 and was lower than the bottom border of the primary price channel by $33.16 (20.72%). This indicates a possible reversal in the primary trend direction.

Secondary Trend

Start date: September 19, 2024
End date: April 3, 2025

a = 6.9761

b = -0.0011

s = 0.0512

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0011) – 1
= -33.84%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0512) – 1
= 22.73%

September 19, 2024 calculations

Top border of price channel:

Exp(Y1,121)
= Exp(a + b × X1,121 + 2 × s)
= Exp(a + b × 1,627 + 2 × s)
= Exp(6.9761 + -0.0011 × 1,627 + 2 × 0.0512)
= Exp(5.2374)
= $188.18

Bottom border of price channel:

Exp(Y1,121)
= Exp(a + b × X1,121 – 2 × s)
= Exp(a + b × 1,627 – 2 × s)
= Exp(6.9761 + -0.0011 × 1,627 – 2 × 0.0512)
= Exp(5.0326)
= $153.33

April 3, 2025 calculations

Top border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 + 2 × s)
= Exp(a + b × 1,823 + 2 × s)
= Exp(6.9761 + -0.0011 × 1,823 + 2 × 0.0512)
= Exp(5.0156)
= $150.75

Bottom border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,823 – 2 × s)
= Exp(6.9761 + -0.0011 × 1,823 – 2 × 0.0512)
= Exp(4.8108)
= $122.83

Description

  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 33.84% per annum.
  • SPXC price at the close of April 3, 2025 was inside the secondary price channel.