MUIGX vs. GRISX

Last updated Jun 4, 2026

MUIGX (Nationwide BNY Mellon Dynamic U.S. Core Fund) and GRISX (Nationwide S&P 500 Index Fund) are both mutual funds - MUIGX is a Large Cap Blend Equities fund managed by Nationwide, while GRISX is a S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, MUIGX returned 16.67%/yr vs 15.27%/yr for GRISX. With a 0.95 correlation, they move nearly in lockstep. MUIGX charges 0.50%/yr vs 0.44%/yr for GRISX.

Performance

MUIGX vs. GRISX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Nationwide BNY Mellon Dynamic U.S. Core Fund (MUIGX) and Nationwide S&P 500 Index Fund (GRISX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both investments are quite close, with MUIGX having a 11.48% return and GRISX slightly higher at 11.55%. Over the past 10 years, MUIGX has outperformed GRISX with an annualized return of 16.67%, while GRISX has yielded a comparatively lower 15.27% annualized return.

MUIGX

• 1D: 0.15%
• 1M: 6.08%
• YTD: 11.48%
• 6M: 11.29%
• 1Y: 28.42%
• 3Y*: 21.38%
• 5Y*: 12.68%
• 10Y*: 16.67%

GRISX

• 1D: 0.15%
• 1M: 5.78%
• YTD: 11.55%
• 6M: 11.59%
• 1Y: 28.56%
• 3Y*: 22.08%
• 5Y*: 13.73%
• 10Y*: 15.27%

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

MUIGX vs. GRISX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MUIGX Nationwide BNY Mellon Dynamic U.S. Core Fund	11.48%	17.35%	22.33%	24.28%	-21.86%	30.48%	19.17%	47.45%	-0.65%	27.24%
GRISX Nationwide S&P 500 Index Fund	11.55%	17.41%	24.13%	25.55%	-18.49%	28.32%	17.92%	30.94%	-3.84%	21.35%

Correlation

The correlation between MUIGX and GRISX is 1.00 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	1.00
Correlation (3Y) Calculated over the trailing 3-year period	1.00
Correlation (5Y) Calculated over the trailing 5-year period	1.00
Correlation (10Y) Calculated over the trailing 10-year period	0.98
Correlation (All Time) Calculated using the full available price history since Jan 5, 1999	0.95

The correlation between MUIGX and GRISX has been stable across timeframes, ranging from 0.95 to 1.00 - a consistent structural relationship.

Return for Risk

MUIGX vs. GRISX — Risk / Return Rank

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

MUIGX

MUIGX Risk / Return Rank: 70
MUIGX Sharpe Ratio Rank: 71
MUIGX Sortino Ratio Rank: 66
MUIGX Omega Ratio Rank: 64
MUIGX Calmar Ratio Rank: 71
MUIGX Martin Ratio Rank: 79

GRISX

GRISX Risk / Return Rank: 71
GRISX Sharpe Ratio Rank: 73
GRISX Sortino Ratio Rank: 65
GRISX Omega Ratio Rank: 65
GRISX Calmar Ratio Rank: 72
GRISX Martin Ratio Rank: 82

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.

MUIGX vs. GRISX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Nationwide BNY Mellon Dynamic U.S. Core Fund (MUIGX) and Nationwide S&P 500 Index Fund (GRISX). 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.

	MUIGX	GRISX	Difference
Sharpe ratio: Return per unit of total volatility	2.47	2.48	-0.01
Sortino ratio: Return per unit of downside risk	3.39	3.38	+0.02
Omega ratio: Gain probability vs. loss probability	1.44	1.45	-0.01
Calmar ratio: Return relative to maximum drawdown	3.28	3.29	-0.01
Martin ratio: Return relative to average drawdown	14.74	15.35	-0.60
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MUIGX vs. GRISX - Sharpe Ratio Comparison

The current MUIGX Sharpe Ratio is 2.47, which is comparable to the GRISX Sharpe Ratio of 2.48. The chart below compares the historical Sharpe Ratios of MUIGX and GRISX, 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

	MUIGX	GRISX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.47	2.48	-0.01
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.75	0.82	-0.06
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.91	0.85	+0.06
Sharpe Ratio (All Time) Calculated using the full available price history	0.45	0.43	+0.02

Drawdowns

MUIGX vs. GRISX - Drawdown Comparison

The maximum MUIGX drawdown since its inception was -68.10%, which is greater than GRISX's maximum drawdown of -55.53%. Use the drawdown chart below to compare losses from any high point for MUIGX and GRISX.

Drawdown Indicators

	MUIGX	GRISX	Difference
Max Drawdown Largest peak-to-trough decline	-68.10%	-55.53%	-12.57%
Max Drawdown (1Y) Largest decline over 1 year	-8.95%	-8.95%	0.00%
Max Drawdown (3Y) Largest decline over 3 years	-18.02%	-18.78%	+0.76%
Max Drawdown (5Y) Largest decline over 5 years	-27.33%	-24.75%	-2.58%
Max Drawdown (10Y) Largest decline over 10 years	-32.70%	-33.85%	+1.15%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-16.88%	-10.86%	-6.02%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.99%	1.91%	+0.08%

Volatility

MUIGX vs. GRISX - Volatility Comparison

Nationwide BNY Mellon Dynamic U.S. Core Fund (MUIGX) has a higher volatility of 3.16% compared to Nationwide S&P 500 Index Fund (GRISX) at 2.83%. This indicates that MUIGX's price experiences larger fluctuations and is considered to be riskier than GRISX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MUIGX	GRISX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.16%	2.83%	+0.33%
Volatility (6M) Calculated over the trailing 6-month period	9.00%	8.98%	+0.02%
Volatility (1Y) Calculated over the trailing 1-year period	11.86%	11.88%	-0.02%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.99%	16.94%	+0.05%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.49%	18.08%	+0.41%

MUIGX vs. GRISX - Expense Ratio Comparison

MUIGX has a 0.50% expense ratio, which is higher than GRISX's 0.44% expense ratio.

Dividends

MUIGX vs. GRISX - Dividend Comparison

MUIGX's dividend yield for the trailing twelve months is around 4.43%, less than GRISX's 4.59% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
GRISX Nationwide S&P 500 Index Fund	4.59%	5.08%	2.62%	0.79%	1.67%	4.96%	1.27%	6.26%	18.54%	6.66%	7.42%	11.98%
MUIGX Nationwide BNY Mellon Dynamic U.S. Core Fund	4.43%	4.96%	4.60%	1.41%	1.15%	7.64%	2.77%	14.46%	48.57%	10.32%	5.60%	4.96%

Frequently Asked Questions

Can I hold both MUIGX and GRISX in my portfolio?

With a correlation of 1.00, MUIGX and GRISX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, MUIGX or GRISX?

MUIGX has higher volatility (3.16%) compared to GRISX (2.83%). In terms of maximum drawdown, MUIGX dropped -68.10% vs GRISX's -55.53%.

Which has better risk-adjusted returns?

GRISX currently has the higher Sharpe Ratio (2.48 vs 2.47), 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.