MGEE vs. IVV

Last updated Jun 3, 2026

MGEE (MGE Energy, Inc.) is a stock, while IVV (iShares Core S&P 500 ETF) is S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, MGEE returned 5.82%/yr vs 15.62%/yr for IVV. At a 0.46 correlation, their price movements are largely independent.

Performance

MGEE vs. IVV - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MGE Energy, Inc. (MGEE) and iShares Core S&P 500 ETF (IVV). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MGEE achieves a -3.97% return, which is significantly lower than IVV's 11.70% return. Over the past 10 years, MGEE has underperformed IVV with an annualized return of 5.82%, while IVV has yielded a comparatively higher 15.62% annualized return.

MGEE

• 1D: 2.44%
• 1M: -7.11%
• YTD: -3.97%
• 6M: -5.19%
• 1Y: -15.65%
• 3Y*: 2.70%
• 5Y*: 1.83%
• 10Y*: 5.82%

IVV

• 1D: 0.14%
• 1M: 5.39%
• YTD: 11.70%
• 6M: 12.12%
• 1Y: 29.71%
• 3Y*: 22.74%
• 5Y*: 14.26%
• 10Y*: 15.62%

*Multi-year figures are annualized to reflect compound growth (CAGR)

MGEE vs. IVV - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MGEE MGE Energy, Inc.	-3.97%	-14.75%	32.80%	5.10%	-12.57%	19.90%	-9.30%	34.04%	-2.90%	-1.48%
IVV iShares Core S&P 500 ETF	11.70%	17.85%	24.93%	26.31%	-18.16%	28.76%	18.40%	31.07%	-4.49%	21.75%

Correlation

The correlation between MGEE and IVV is 0.08, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.08
Correlation (3Y) Calculated over the trailing 3-year period	0.18
Correlation (5Y) Calculated over the trailing 5-year period	0.25
Correlation (10Y) Calculated over the trailing 10-year period	0.30
Correlation (All Time) Calculated using the full available price history since May 22, 2000	0.46

Over the past year, the correlation between MGEE and IVV has dropped to 0.08 - well below their long-term average of 0.46, suggesting their price drivers have been diverging.

Return for Risk

MGEE vs. IVV — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

MGEE

MGEE Risk / Return Rank: 9
MGEE Sharpe Ratio Rank: 9
MGEE Sortino Ratio Rank: 11
MGEE Omega Ratio Rank: 12
MGEE Calmar Ratio Rank: 9
MGEE Martin Ratio Rank: 4

IVV

IVV Risk / Return Rank: 75
IVV Sharpe Ratio Rank: 77
IVV Sortino Ratio Rank: 75
IVV Omega Ratio Rank: 77
IVV Calmar Ratio Rank: 68
IVV Martin Ratio Rank: 80

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

MGEE vs. IVV - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MGE Energy, Inc. (MGEE) and iShares Core S&P 500 ETF (IVV). 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.

	MGEE	IVV	Difference
Sharpe ratio Return per unit of total volatility	-0.77	2.54	-3.31
Sortino ratio Return per unit of downside risk	-0.94	3.44	-4.38
Omega ratio Gain probability vs. loss probability	0.88	1.46	-0.58
Calmar ratio Return relative to maximum drawdown	-0.82	3.43	-4.25
Martin ratio Return relative to average drawdown	-1.55	15.97	-17.51
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MGEE vs. IVV - Sharpe Ratio Comparison

The current MGEE Sharpe Ratio is -0.77, which is lower than the IVV Sharpe Ratio of 2.54. The chart below compares the historical Sharpe Ratios of MGEE and IVV, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	MGEE	IVV	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.77	2.54	-3.31
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.08	0.85	-0.77
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.21	0.87	-0.66
Sharpe Ratio (All Time) Calculated using the full available price history	0.38	0.46	-0.07

Drawdowns

MGEE vs. IVV - Drawdown Comparison

The maximum MGEE drawdown since its inception was -33.91%, smaller than the maximum IVV drawdown of -55.25%. Use the drawdown chart below to compare losses from any high point for MGEE and IVV.

Drawdown Indicators

	MGEE	IVV	Difference
Max Drawdown Largest peak-to-trough decline	-33.91%	-55.25%	+21.34%
Max Drawdown (1Y) Largest decline over 1 year	-19.07%	-8.89%	-10.18%
Max Drawdown (3Y) Largest decline over 3 years	-30.88%	-18.75%	-12.13%
Max Drawdown (5Y) Largest decline over 5 years	-30.88%	-24.53%	-6.35%
Max Drawdown (10Y) Largest decline over 10 years	-33.91%	-33.90%	-0.01%
Current Drawdown Current decline from peak	-28.58%	0.00%	-28.58%
Average Drawdown Average peak-to-trough decline	-7.63%	-10.78%	+3.15%
Ulcer Index Depth and duration of drawdowns from previous peaks	10.14%	1.91%	+8.23%

Volatility

MGEE vs. IVV - Volatility Comparison

MGE Energy, Inc. (MGEE) has a higher volatility of 9.76% compared to iShares Core S&P 500 ETF (IVV) at 2.75%. This indicates that MGEE's price experiences larger fluctuations and is considered to be riskier than IVV based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MGEE	IVV	Difference
Volatility (1M) Calculated over the trailing 1-month period	9.76%	2.75%	+7.01%
Volatility (6M) Calculated over the trailing 6-month period	16.39%	8.87%	+7.52%
Volatility (1Y) Calculated over the trailing 1-year period	20.42%	11.78%	+8.64%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.31%	16.88%	+6.43%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	27.43%	18.05%	+9.38%

Dividends

MGEE vs. IVV - Dividend Comparison

MGEE's dividend yield for the trailing twelve months is around 2.55%, more than IVV's 1.06% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IVV iShares Core S&P 500 ETF	1.06%	1.17%	1.30%	1.44%	1.66%	1.20%	1.57%	1.85%	2.21%	1.75%	2.01%	2.27%
MGEE MGE Energy, Inc.	2.55%	2.36%	1.87%	2.31%	2.26%	1.84%	2.06%	1.75%	2.20%	2.00%	1.85%	2.49%

Frequently Asked Questions

Can I hold both MGEE and IVV in my portfolio?

MGEE and IVV have a correlation of 0.08, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MGEE or IVV?

MGEE has higher volatility (9.76%) compared to IVV (2.75%). In terms of maximum drawdown, MGEE dropped -33.91% vs IVV's -55.25%.

Which has better risk-adjusted returns?

IVV currently has the higher Sharpe Ratio (2.54 vs -0.77), 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.