MDU vs. SR
MDU (MDU Resources Group, Inc.) and SR (Spire Inc.) are both stocks. MDU operates in Building Materials (Basic Materials), while SR operates in Utilities - Regulated Gas (Utilities). Over the past 10 years, MDU returned 12.26%/yr vs 6.11%/yr for SR. At a 0.39 correlation, their price movements are largely independent.
Performance
MDU vs. SR - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, MDU achieves a 7.07% return, which is significantly higher than SR's -1.04% return. Over the past 10 years, MDU has outperformed SR with an annualized return of 12.26%, while SR has yielded a comparatively lower 6.11% annualized return.
MDU
- 1D
- -0.34%
- 1M
- -7.86%
- YTD
- 7.07%
- 6M
- 4.00%
- 1Y
- 24.18%
- 3Y*
- 25.91%
- 5Y*
- 13.25%
- 10Y*
- 12.26%
SR
- 1D
- -1.19%
- 1M
- -10.25%
- YTD
- -1.04%
- 6M
- -1.39%
- 1Y
- 12.25%
- 3Y*
- 12.24%
- 5Y*
- 6.84%
- 10Y*
- 6.11%
MDU vs. SR - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
MDU MDU Resources Group, Inc. | 7.07% | 11.77% | 68.01% | -1.94% | 1.46% | 20.37% | -8.31% | 28.44% | -8.64% | -3.87% |
SR Spire Inc. | -1.04% | 27.08% | 14.12% | -5.26% | 9.81% | 5.86% | -20.18% | 15.81% | 1.74% | 19.88% |
Correlation
The correlation between MDU and SR is 0.52, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.52 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.49 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.53 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.55 |
Correlation (All Time) Calculated using the full available price history since Nov 6, 1987 | 0.39 |
The correlation between MDU and SR shifts across timeframes, from 0.39 (all time) to 0.55 (10 years), reflecting how their relationship changes across market environments.
Fundamentals
MDU:
$4.30B
SR:
$4.80B
MDU:
$0.92
SR:
$6.06
MDU:
22.57
SR:
13.38
MDU:
2.37
SR:
1.94
MDU:
1.48
SR:
1.40
MDU:
$1.81B
SR:
$2.47B
MDU:
$848.35M
SR:
$1.81B
MDU:
$528.72M
SR:
$721.80M
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
MDU vs. SR — Risk / Return Rank
MDU
SR
MDU vs. SR - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for MDU Resources Group, Inc. (MDU) and Spire Inc. (SR). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
| MDU | SR | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.45 | ||
| Sortino ratioReturn per unit of downside risk | +0.56 | ||
| Omega ratioGain probability vs. loss probability | 1.21 | 1.13 | +0.08 |
| Calmar ratioReturn relative to maximum drawdown | 2.50 | 0.81 | +1.69 |
| Martin ratioReturn relative to average drawdown | 5.57 | 2.52 | +3.05 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Loading charts...
Sharpe Ratios by Period
| MDU | SR | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.12 | 0.68 | +0.45 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.58 | 0.32 | +0.26 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.45 | 0.25 | +0.20 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.45 | 0.44 | +0.01 |
Drawdowns
MDU vs. SR - Drawdown Comparison
The maximum MDU drawdown since its inception was -62.17%, which is greater than SR's maximum drawdown of -45.00%. Use the drawdown chart below to compare losses from any high point for MDU and SR.
Loading charts...
Drawdown Indicators
| MDU | SR | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -62.17% | -45.00% | -17.17% |
Max Drawdown (1Y)Largest decline over 1 year | -9.70% | -15.20% | +5.50% |
Max Drawdown (3Y)Largest decline over 3 years | -21.48% | -17.63% | -3.85% |
Max Drawdown (5Y)Largest decline over 5 years | -23.58% | -26.05% | +2.47% |
Max Drawdown (10Y)Largest decline over 10 years | -51.41% | -39.53% | -11.88% |
Current DrawdownCurrent decline from peak | -8.95% | -14.80% | +5.85% |
Average DrawdownAverage peak-to-trough decline | -14.33% | -9.48% | -4.85% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.47% | 4.88% | -0.41% |
Volatility
MDU vs. SR - Volatility Comparison
The current volatility for MDU Resources Group, Inc. (MDU) is 5.17%, while Spire Inc. (SR) has a volatility of 6.05%. This indicates that MDU experiences smaller price fluctuations and is considered to be less risky than SR based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| MDU | SR | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.17% | 6.05% | -0.88% |
Volatility (6M)Calculated over the trailing 6-month period | 14.62% | 13.07% | +1.55% |
Volatility (1Y)Calculated over the trailing 1-year period | 21.61% | 18.17% | +3.44% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 23.06% | 21.48% | +1.58% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 27.11% | 24.34% | +2.77% |
Dividends
MDU vs. SR - Dividend Comparison
MDU's dividend yield for the trailing twelve months is around 2.65%, less than SR's 3.97% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
MDU MDU Resources Group, Inc. | 2.65% | 2.77% | 1.89% | 3.16% | 2.88% | 2.77% | 3.17% | 2.74% | 3.33% | 2.88% | 2.62% | 4.01% |
SR Spire Inc. | 3.97% | 3.85% | 4.50% | 4.68% | 4.03% | 4.04% | 3.93% | 2.88% | 3.08% | 2.84% | 3.09% | 3.15% |
Financials
MDU vs. SR - Financials Comparison
This section allows you to compare key financial metrics between MDU Resources Group, Inc. and Spire Inc.. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
Frequently Asked Questions
MDU and SR have a correlation of 0.52, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
SR has higher volatility (6.05%) compared to MDU (5.17%). In terms of maximum drawdown, MDU dropped -62.17% vs SR's -45.00%.
MDU currently has the higher Sharpe Ratio (1.12 vs 0.68), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
Find the right allocation for MDU and SR
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer