Stock Price Trends

Diodes Incorporated (DIOD)

Diodes Incorporated designs, manufactures and supplies standard products for specific applications in the discrete, logic, analog and mixed-signal semiconductor markets worldwide. The company is headquartered in Plano, 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 21.48% per annum.
  • DIOD price at the close of April 29, 2025 was $38.16 and was lower than the bottom border of the primary price channel by $7.77 (16.91%).
  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 86.99% per annum.
  • DIOD 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 DIOD 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: January 12, 2023
End date: April 2, 2025

a = 5.2022

b = -0.0007

s = 0.0832

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0007) – 1
= -21.48%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0832) – 1
= 39.48%

January 12, 2023 calculations

Top border of price channel:

Exp(Y681)
= Exp(a + b × X681 + 2 × s)
= Exp(a + b × 987 + 2 × s)
= Exp(5.2022 + -0.0007 × 987 + 2 × 0.0832)
= Exp(4.7149)
= $111.59

Bottom border of price channel:

Exp(Y681)
= Exp(a + b × X681 – 2 × s)
= Exp(a + b × 987 – 2 × s)
= Exp(5.2022 + -0.0007 × 987 – 2 × 0.0832)
= Exp(4.3821)
= $80.01

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(5.2022 + -0.0007 × 1,798 + 2 × 0.0832)
= Exp(4.1777)
= $65.22

Bottom border of price channel:

Exp(Y1,237)
= Exp(a + b × X1,237 – 2 × s)
= Exp(a + b × 1,798 – 2 × s)
= Exp(5.2022 + -0.0007 × 1,798 – 2 × 0.0832)
= Exp(3.8449)
= $46.75

Description

  • The primary trend is decreasing.
  • The decline rate of the primary trend is 21.48% per annum.
  • DIOD price at the close of April 29, 2025 was $38.16 and was lower than the bottom border of the primary price channel by $7.77 (16.91%).

Secondary Trend

Start date: January 3, 2025
End date: April 29, 2025

a = 13.7655

b = -0.0056

s = 0.0578

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0056) – 1
= -86.99%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0578) – 1
= 26.01%

January 3, 2025 calculations

Top border of price channel:

Exp(Y1,177)
= Exp(a + b × X1,177 + 2 × s)
= Exp(a + b × 1,709 + 2 × s)
= Exp(13.7655 + -0.0056 × 1,709 + 2 × 0.0578)
= Exp(4.3307)
= $76.00

Bottom border of price channel:

Exp(Y1,177)
= Exp(a + b × X1,177 – 2 × s)
= Exp(a + b × 1,709 – 2 × s)
= Exp(13.7655 + -0.0056 × 1,709 – 2 × 0.0578)
= Exp(4.0995)
= $60.31

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(13.7655 + -0.0056 × 1,825 + 2 × 0.0578)
= Exp(3.6825)
= $39.74

Bottom border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(13.7655 + -0.0056 × 1,825 – 2 × 0.0578)
= Exp(3.4513)
= $31.54

Description

  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 86.99% per annum.
  • DIOD price at the close of April 29, 2025 was inside the secondary price channel.