MUIGX vs. GMXAX

Last updated Jun 24, 2026

MUIGX (Nationwide BNY Mellon Dynamic U.S. Core Fund) and GMXAX (Nationwide Mid Cap Market Index Fund) are both mutual funds - MUIGX is a Large Cap Blend Equities fund managed by Nationwide, while GMXAX is a Mid Cap Blend Equities fund managed by Nationwide. Over the past 10 years, MUIGX returned 16.90%/yr vs 9.89%/yr for GMXAX. Their correlation of 0.88 suggests significant overlap in exposure. MUIGX charges 0.50%/yr vs 0.68%/yr for GMXAX.

Performance

MUIGX vs. GMXAX - 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 Mid Cap Market Index Fund (GMXAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MUIGX achieves a 9.31% return, which is significantly lower than GMXAX's 15.54% return. Over the past 10 years, MUIGX has outperformed GMXAX with an annualized return of 16.90%, while GMXAX has yielded a comparatively lower 9.89% annualized return.

MUIGX

• 1D: -0.41%
• 1M: -0.11%
• YTD: 9.31%
• 6M: 8.35%
• 1Y: 24.56%
• 3Y*: 19.99%
• 5Y*: 11.88%
• 10Y*: 16.90%

GMXAX

• 1D: 0.35%
• 1M: 3.71%
• YTD: 15.54%
• 6M: 13.43%
• 1Y: 25.80%
• 3Y*: 15.57%
• 5Y*: 8.22%
• 10Y*: 9.89%

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

MUIGX vs. GMXAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MUIGX Nationwide BNY Mellon Dynamic U.S. Core Fund	9.31%	17.35%	22.33%	24.28%	-21.86%	30.48%	19.17%	47.45%	-0.65%	27.24%
GMXAX Nationwide Mid Cap Market Index Fund	15.54%	6.84%	12.15%	15.89%	-13.45%	24.33%	12.79%	25.35%	-10.65%	2.80%

Correlation

The correlation between MUIGX and GMXAX is 0.75, 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	0.75
Correlation (3Y) Calculated over the trailing 3-year period	0.79
Correlation (5Y) Calculated over the trailing 5-year period	0.84
Correlation (10Y) Calculated over the trailing 10-year period	0.83
Correlation (All Time) Calculated using the full available price history since Jan 3, 2000	0.88

The correlation between MUIGX and GMXAX shifts across timeframes, from 0.75 (1 year) to 0.88 (all time), reflecting how their relationship changes across market environments.

Return for Risk

MUIGX vs. GMXAX — Risk / Return Rank

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

MUIGX

MUIGX Risk / Return Rank: 60
MUIGX Sharpe Ratio Rank: 58
MUIGX Sortino Ratio Rank: 54
MUIGX Omega Ratio Rank: 54
MUIGX Calmar Ratio Rank: 62
MUIGX Martin Ratio Rank: 70

GMXAX

GMXAX Risk / Return Rank: 49
GMXAX Sharpe Ratio Rank: 40
GMXAX Sortino Ratio Rank: 41
GMXAX Omega Ratio Rank: 37
GMXAX Calmar Ratio Rank: 68
GMXAX Martin Ratio Rank: 59

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. GMXAX - 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 Mid Cap Market Index Fund (GMXAX). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	MUIGX	GMXAX	Difference
Sharpe ratio: Return per unit of total volatility	2.07	1.71	+0.36
Sortino ratio: Return per unit of downside risk	2.83	2.49	+0.34
Omega ratio: Gain probability vs. loss probability	1.37	1.30	+0.07
Calmar ratio: Return relative to maximum drawdown	2.89	3.06	-0.17
Martin ratio: Return relative to average drawdown	12.57	11.07	+1.50

MUIGX vs. GMXAX - Sharpe Ratio Comparison

The current MUIGX Sharpe Ratio is 2.07, which is comparable to the GMXAX Sharpe Ratio of 1.71. The chart below compares the historical Sharpe Ratios of MUIGX and GMXAX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

MUIGX vs. GMXAX - Drawdown Comparison

The maximum MUIGX drawdown since its inception was -68.10%, which is greater than GMXAX's maximum drawdown of -55.64%. Use the drawdown chart below to compare losses from any high point for MUIGX and GMXAX.

Drawdown Indicators

	MUIGX	GMXAX	Difference
Max Drawdown Largest peak-to-trough decline	-68.10%	-55.64%	-12.46%
Max Drawdown (1Y) Largest decline over 1 year	-8.95%	-8.83%	-0.12%
Max Drawdown (3Y) Largest decline over 3 years	-18.02%	-24.21%	+6.19%
Max Drawdown (5Y) Largest decline over 5 years	-27.33%	-24.21%	-3.12%
Max Drawdown (10Y) Largest decline over 10 years	-32.70%	-42.22%	+9.52%
Current Drawdown Current decline from peak	-1.95%	-0.06%	-1.89%
Average Drawdown Average peak-to-trough decline	-16.86%	-8.04%	-8.82%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.06%	2.43%	-0.37%

Volatility

MUIGX vs. GMXAX - Volatility Comparison

Nationwide BNY Mellon Dynamic U.S. Core Fund (MUIGX) and Nationwide Mid Cap Market Index Fund (GMXAX) have volatilities of 4.72% and 4.61%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MUIGX	GMXAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.72%	4.61%	+0.11%
Volatility (6M) Calculated over the trailing 6-month period	9.87%	11.67%	-1.80%
Volatility (1Y) Calculated over the trailing 1-year period	12.54%	15.78%	-3.24%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.07%	19.71%	-2.64%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.54%	21.33%	-2.79%

MUIGX vs. GMXAX - Expense Ratio Comparison

MUIGX has a 0.50% expense ratio, which is lower than GMXAX's 0.68% expense ratio.

Dividends

MUIGX vs. GMXAX - Dividend Comparison

MUIGX's dividend yield for the trailing twelve months is around 4.53%, less than GMXAX's 11.22% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
GMXAX Nationwide Mid Cap Market Index Fund	11.22%	12.93%	11.73%	6.17%	9.58%	12.52%	3.18%	5.18%	23.21%	0.85%	9.60%	13.94%
MUIGX Nationwide BNY Mellon Dynamic U.S. Core Fund	4.53%	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 GMXAX in my portfolio?

MUIGX and GMXAX have a correlation of 0.75, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MUIGX or GMXAX?

MUIGX has higher volatility (4.72%) compared to GMXAX (4.61%). In terms of maximum drawdown, MUIGX dropped -68.10% vs GMXAX's -55.64%.

Which has better risk-adjusted returns?

MUIGX currently has the higher Sharpe Ratio (2.07 vs 1.71), 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.