Stock Price Trends

Warrior Met Coal Inc (HCC)

Warrior Met Coal, Inc. produces and exports non-thermal metallurgical coal for the steel industry. The company is headquartered in Brookwood, Alabama.

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 29.17% per annum.
  • HCC price at the close of April 29, 2025 was $48.65 and was inside the primary price channel.
  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 60.15% per annum.
  • HCC 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 HCC 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: April 11, 2024
End date: April 29, 2025

a = 5.6186

b = -0.0009

s = 0.0877

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0009) – 1
= -29.17%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0877) – 1
= 42.00%

April 11, 2024 calculations

Top border of price channel:

Exp(Y993)
= Exp(a + b × X993 + 2 × s)
= Exp(a + b × 1,442 + 2 × s)
= Exp(5.6186 + -0.0009 × 1,442 + 2 × 0.0877)
= Exp(4.4313)
= $84.04

Bottom border of price channel:

Exp(Y993)
= Exp(a + b × X993 – 2 × s)
= Exp(a + b × 1,442 – 2 × s)
= Exp(5.6186 + -0.0009 × 1,442 – 2 × 0.0877)
= Exp(4.0807)
= $59.18

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(5.6186 + -0.0009 × 1,825 + 2 × 0.0877)
= Exp(4.0694)
= $58.52

Bottom border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(5.6186 + -0.0009 × 1,825 – 2 × 0.0877)
= Exp(3.7188)
= $41.21

Description

  • The primary trend is decreasing.
  • The decline rate of the primary trend is 29.17% per annum.
  • HCC price at the close of April 29, 2025 was $48.65 and was inside the primary price channel.

Secondary Trend

Start date: November 1, 2024
End date: April 29, 2025

a = 8.3714

b = -0.0025

s = 0.0620

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0025) – 1
= -60.15%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0620) – 1
= 28.12%

November 1, 2024 calculations

Top border of price channel:

Exp(Y1,135)
= Exp(a + b × X1,135 + 2 × s)
= Exp(a + b × 1,646 + 2 × s)
= Exp(8.3714 + -0.0025 × 1,646 + 2 × 0.0620)
= Exp(4.3459)
= $77.16

Bottom border of price channel:

Exp(Y1,135)
= Exp(a + b × X1,135 – 2 × s)
= Exp(a + b × 1,646 – 2 × s)
= Exp(8.3714 + -0.0025 × 1,646 – 2 × 0.0620)
= Exp(4.0980)
= $60.22

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(8.3714 + -0.0025 × 1,825 + 2 × 0.0620)
= Exp(3.8946)
= $49.14

Bottom border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(8.3714 + -0.0025 × 1,825 – 2 × 0.0620)
= Exp(3.6468)
= $38.35

Description

  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 60.15% per annum.
  • HCC price at the close of April 29, 2025 was inside the secondary price channel.