PPG Industries Inc (PPG)
PPG Industries, Inc. is an American Fortune 500 company and global supplier of paints, coatings, and specialty materials. With headquarters in Pittsburgh, Pennsylvania, PPG operates in more than 70 countries around the globe.
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 15.74% per annum.
- PPG price at the close of April 29, 2025 was $103.81 and was lower than the bottom border of the primary price channel by $1.74 (1.65%).
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 32.08% per annum.
- PPG price at the close of April 29, 2025 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 PPG 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 30, 2023
End date: April 2, 2025
a = 5.5736
b = -0.0005
s = 0.0289
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0005) – 1
= -15.74%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0289) – 1
= 12.27%
November 30, 2023 calculations
Top border of price channel:
Exp(Y903)
= Exp(a + b × X903 + 2 × s)
= Exp(a + b × 1,309 + 2 × s)
= Exp(5.5736 + -0.0005 × 1,309 + 2 × 0.0289)
= Exp(5.0171)
= $150.98
Bottom border of price channel:
Exp(Y903)
= Exp(a + b × X903 – 2 × s)
= Exp(a + b × 1,309 – 2 × s)
= Exp(5.5736 + -0.0005 × 1,309 – 2 × 0.0289)
= Exp(4.9014)
= $134.48
April 2, 2025 calculations
Top border of price channel:
Exp(Y1,237)
= Exp(a + b × X1,237 + 2 × s)
= Exp(a + b × 1,798 + 2 × s)
= Exp(5.5736 + -0.0005 × 1,798 + 2 × 0.0289)
= Exp(4.7876)
= $120.01
Bottom border of price channel:
Exp(Y1,237)
= Exp(a + b × X1,237 – 2 × s)
= Exp(a + b × 1,798 – 2 × s)
= Exp(5.5736 + -0.0005 × 1,798 – 2 × 0.0289)
= Exp(4.6719)
= $106.90
Description
- The primary trend is decreasing.
- The decline rate of the primary trend is 15.74% per annum.
- PPG price at the close of April 29, 2025 was $103.81 and was lower than the bottom border of the primary price channel by $1.74 (1.65%).
Secondary Trend
Start date: September 26, 2024
End date: April 29, 2025
a = 6.5827
b = -0.0011
s = 0.0333
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0011) – 1
= -32.08%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0333) – 1
= 14.26%
September 26, 2024 calculations
Top border of price channel:
Exp(Y1,109)
= Exp(a + b × X1,109 + 2 × s)
= Exp(a + b × 1,610 + 2 × s)
= Exp(6.5827 + -0.0011 × 1,610 + 2 × 0.0333)
= Exp(4.9429)
= $140.17
Bottom border of price channel:
Exp(Y1,109)
= Exp(a + b × X1,109 – 2 × s)
= Exp(a + b × 1,610 – 2 × s)
= Exp(6.5827 + -0.0011 × 1,610 – 2 × 0.0333)
= Exp(4.8096)
= $122.68
April 29, 2025 calculations
Top border of price channel:
Exp(Y1,255)
= Exp(a + b × X1,255 + 2 × s)
= Exp(a + b × 1,825 + 2 × s)
= Exp(6.5827 + -0.0011 × 1,825 + 2 × 0.0333)
= Exp(4.7150)
= $111.61
Bottom border of price channel:
Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(6.5827 + -0.0011 × 1,825 – 2 × 0.0333)
= Exp(4.5817)
= $97.68
Description
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 32.08% per annum.
- PPG price at the close of April 29, 2025 was inside the secondary price channel.