Stock Price Trends

Allegheny Technologies Incorporated (ATI)

Allegheny Technologies Incorporated (ATI) is a global leader in the production of specialty metals and advanced materials, primarily serving the aerospace, defense, medical, and energy sectors. Headquartered in Pittsburgh, Pennsylvania, ATI operates a diverse portfolio of innovative products, including titanium and nickel-based alloys, which cater to the demanding requirements of high-performance applications. With a commitment to sustainability and operational excellence, ATI leverages cutting-edge technologies to enhance their manufacturing processes and fulfill the evolving needs of their customers worldwide. As a publicly traded entity, ATI exemplifies a strong growth trajectory supported by strategic market positioning and a focus on R&D-driven product development.

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 255.30% per annum.
  • ATI price at the close of December 30, 2025 was $116.17 and was inside the primary price channel.
  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 1,121.60% per annum.
  • ATI price at the close of December 30, 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 ATI 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: August 14, 2025
End date: December 30, 2025

a = -1.6063

b = 0.0035

s = 0.0394

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0035) – 1
= 255.30%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0394) – 1
= 17.08%

August 14, 2025 calculations

Top border of price channel:

Exp(Y1,159)
= Exp(a + b × X1,159 + 2 × s)
= Exp(a + b × 1,687 + 2 × s)
= Exp(-1.6063 + 0.0035 × 1,687 + 2 × 0.0394)
= Exp(4.3323)
= $76.12

Bottom border of price channel:

Exp(Y1,159)
= Exp(a + b × X1,159 – 2 × s)
= Exp(a + b × 1,687 – 2 × s)
= Exp(-1.6063 + 0.0035 × 1,687 – 2 × 0.0394)
= Exp(4.1745)
= $65.01

December 30, 2025 calculations

Top border of price channel:

Exp(Y1,254)
= Exp(a + b × X1,254 + 2 × s)
= Exp(a + b × 1,825 + 2 × s)
= Exp(-1.6063 + 0.0035 × 1,825 + 2 × 0.0394)
= Exp(4.8116)
= $122.93

Bottom border of price channel:

Exp(Y1,254)
= Exp(a + b × X1,254 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(-1.6063 + 0.0035 × 1,825 – 2 × 0.0394)
= Exp(4.6539)
= $104.99

Description

  • The primary trend is increasing.
  • The growth rate of the primary trend is 255.30% per annum.
  • ATI price at the close of December 30, 2025 was $116.17 and was inside the primary price channel.

Secondary Trend

Start date: December 1, 2025
End date: December 30, 2025

a = -7.7276

b = 0.0069

s = 0.0224

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0069) – 1
= 1,121.60%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0224) – 1
= 9.39%

December 1, 2025 calculations

Top border of price channel:

Exp(Y1,234)
= Exp(a + b × X1,234 + 2 × s)
= Exp(a + b × 1,796 + 2 × s)
= Exp(-7.7276 + 0.0069 × 1,796 + 2 × 0.0224)
= Exp(4.6322)
= $102.74

Bottom border of price channel:

Exp(Y1,234)
= Exp(a + b × X1,234 – 2 × s)
= Exp(a + b × 1,796 – 2 × s)
= Exp(-7.7276 + 0.0069 × 1,796 – 2 × 0.0224)
= Exp(4.5424)
= $93.91

December 30, 2025 calculations

Top border of price channel:

Exp(Y1,254)
= Exp(a + b × X1,254 + 2 × s)
= Exp(a + b × 1,825 + 2 × s)
= Exp(-7.7276 + 0.0069 × 1,825 + 2 × 0.0224)
= Exp(4.8310)
= $125.34

Bottom border of price channel:

Exp(Y1,254)
= Exp(a + b × X1,254 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(-7.7276 + 0.0069 × 1,825 – 2 × 0.0224)
= Exp(4.7412)
= $114.57

Description

  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 1,121.60% per annum.
  • ATI price at the close of December 30, 2025 was inside the secondary price channel.