MDU Resources Group Inc (MDU)
MDU Resources Group, Inc. is a diversified energy and natural resource company headquartered in Bismarck, North Dakota. It operates primarily in regulated electric and natural gas utility sectors, alongside its construction materials and services divisions. With a strong commitment to sustainable practices and community engagement, MDU plays a vital role in providing reliable energy solutions and essential infrastructure across the United States. The company's strategic focus on operational efficiency and growth aligns well with evolving energy demands and regulatory landscapes, making it an attractive prospect for institutional investors.
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 56.58% per annum.
- MDU price at the close of December 19, 2025 was $19.17 and was lower than the bottom border of the primary price channel by $3.83 (16.66%). This indicates a possible reversal in the primary trend direction.
- The secondary trend is increasing.
- The growth rate of the secondary trend is 24.72% per annum.
- MDU price at the close of December 19, 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 MDU 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 15, 2023
End date: February 6, 2025
a = 1.0268
b = 0.0012
s = 0.0659
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0012) – 1
= 56.58%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0659) – 1
= 30.19%
August 15, 2023 calculations
Top border of price channel:
Exp(Y665)
= Exp(a + b × X665 + 2 × s)
= Exp(a + b × 967 + 2 × s)
= Exp(1.0268 + 0.0012 × 967 + 2 × 0.0659)
= Exp(2.3466)
= $10.45
Bottom border of price channel:
Exp(Y665)
= Exp(a + b × X665 – 2 × s)
= Exp(a + b × 967 – 2 × s)
= Exp(1.0268 + 0.0012 × 967 – 2 × 0.0659)
= Exp(2.0828)
= $8.03
February 6, 2025 calculations
Top border of price channel:
Exp(Y1,036)
= Exp(a + b × X1,036 + 2 × s)
= Exp(a + b × 1,508 + 2 × s)
= Exp(1.0268 + 0.0012 × 1,508 + 2 × 0.0659)
= Exp(3.0112)
= $20.31
Bottom border of price channel:
Exp(Y1,036)
= Exp(a + b × X1,036 – 2 × s)
= Exp(a + b × 1,508 – 2 × s)
= Exp(1.0268 + 0.0012 × 1,508 – 2 × 0.0659)
= Exp(2.7474)
= $15.60
Description
- The primary trend is increasing.
- The growth rate of the primary trend is 56.58% per annum.
- MDU price at the close of December 19, 2025 was $19.17 and was lower than the bottom border of the primary price channel by $3.83 (16.66%). This indicates a possible reversal in the primary trend direction.
Secondary Trend
Start date: March 20, 2024
End date: December 19, 2025
a = 1.8540
b = 0.0006
s = 0.0761
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0006) – 1
= 24.72%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0761) – 1
= 35.55%
March 20, 2024 calculations
Top border of price channel:
Exp(Y815)
= Exp(a + b × X815 + 2 × s)
= Exp(a + b × 1,185 + 2 × s)
= Exp(1.8540 + 0.0006 × 1,185 + 2 × 0.0761)
= Exp(2.7232)
= $15.23
Bottom border of price channel:
Exp(Y815)
= Exp(a + b × X815 – 2 × s)
= Exp(a + b × 1,185 – 2 × s)
= Exp(1.8540 + 0.0006 × 1,185 – 2 × 0.0761)
= Exp(2.4190)
= $11.23
December 19, 2025 calculations
Top border of price channel:
Exp(Y1,255)
= Exp(a + b × X1,255 + 2 × s)
= Exp(a + b × 1,824 + 2 × s)
= Exp(1.8540 + 0.0006 × 1,824 + 2 × 0.0761)
= Exp(3.1099)
= $22.42
Bottom border of price channel:
Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,824 – 2 × s)
= Exp(1.8540 + 0.0006 × 1,824 – 2 × 0.0761)
= Exp(2.8057)
= $16.54
Description
- The secondary trend is increasing.
- The growth rate of the secondary trend is 24.72% per annum.
- MDU price at the close of December 19, 2025 was inside the secondary price channel.