Stock Price Trends

Darling Ingredients Inc (DAR)

Darling Ingredients Inc. develops, produces and sells natural ingredients from edible and non-edible bio-nutrients. The company is headquartered in Irving, Texas.

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 25.96% per annum.
  • DAR price at the close of July 3, 2025 was $39.45 and was higher than the top border of the primary price channel by $2.69 (7.33%). This indicates a possible reversal in the primary trend direction.
  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 111.21% per annum.
  • DAR price at the close of July 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 DAR 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: March 1, 2022
End date: June 12, 2025

a = 4.9144

b = -0.0008

s = 0.0956

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0008) – 1
= -25.96%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0956) – 1
= 46.60%

March 1, 2022 calculations

Top border of price channel:

Exp(Y417)
= Exp(a + b × X417 + 2 × s)
= Exp(a + b × 603 + 2 × s)
= Exp(4.9144 + -0.0008 × 603 + 2 × 0.0956)
= Exp(4.6090)
= $100.39

Bottom border of price channel:

Exp(Y417)
= Exp(a + b × X417 – 2 × s)
= Exp(a + b × 603 – 2 × s)
= Exp(4.9144 + -0.0008 × 603 – 2 × 0.0956)
= Exp(4.2265)
= $68.48

June 12, 2025 calculations

Top border of price channel:

Exp(Y1,241)
= Exp(a + b × X1,241 + 2 × s)
= Exp(a + b × 1,802 + 2 × s)
= Exp(4.9144 + -0.0008 × 1,802 + 2 × 0.0956)
= Exp(3.6216)
= $37.40

Bottom border of price channel:

Exp(Y1,241)
= Exp(a + b × X1,241 – 2 × s)
= Exp(a + b × 1,802 – 2 × s)
= Exp(4.9144 + -0.0008 × 1,802 – 2 × 0.0956)
= Exp(3.2391)
= $25.51

Description

  • The primary trend is decreasing.
  • The decline rate of the primary trend is 25.96% per annum.
  • DAR price at the close of July 3, 2025 was $39.45 and was higher than the top border of the primary price channel by $2.69 (7.33%). This indicates a possible reversal in the primary trend direction.

Secondary Trend

Start date: March 10, 2025
End date: July 3, 2025

a = -0.1352

b = 0.0020

s = 0.0627

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0020) – 1
= 111.21%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0627) – 1
= 28.51%

March 10, 2025 calculations

Top border of price channel:

Exp(Y1,175)
= Exp(a + b × X1,175 + 2 × s)
= Exp(a + b × 1,708 + 2 × s)
= Exp(-0.1352 + 0.0020 × 1,708 + 2 × 0.0627)
= Exp(3.4889)
= $32.75

Bottom border of price channel:

Exp(Y1,175)
= Exp(a + b × X1,175 – 2 × s)
= Exp(a + b × 1,708 – 2 × s)
= Exp(-0.1352 + 0.0020 × 1,708 – 2 × 0.0627)
= Exp(3.2381)
= $25.48

July 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(-0.1352 + 0.0020 × 1,823 + 2 × 0.0627)
= Exp(3.7245)
= $41.45

Bottom border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,823 – 2 × s)
= Exp(-0.1352 + 0.0020 × 1,823 – 2 × 0.0627)
= Exp(3.4737)
= $32.25

Description

  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 111.21% per annum.
  • DAR price at the close of July 3, 2025 was inside the secondary price channel.