MIEYX vs. MOGAX

Last updated Apr 1, 2026

Compare and contrast key facts about MM S&P 500 Index Fund (MIEYX) and MassMutual 60/40 Allocation Fund (MOGAX).

MIEYX is a passively managed fund by MassMutual that tracks the performance of the S&P 500 Index. It was launched on Feb 27, 1998. MOGAX is managed by MassMutual. It was launched on Jun 19, 2011.

Performance

MIEYX vs. MOGAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MM S&P 500 Index Fund (MIEYX) and MassMutual 60/40 Allocation Fund (MOGAX). The values are adjusted to include any dividend payments, if applicable.

MIEYX vs. MOGAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MIEYX MM S&P 500 Index Fund	-7.16%	17.27%	24.36%	25.76%	-18.63%	28.02%	17.87%	30.98%	-5.26%	18.90%
MOGAX MassMutual 60/40 Allocation Fund	0.00%	10.54%	8.82%	14.26%	-22.35%	13.74%	12.03%	24.58%	-8.02%	14.54%

Returns By Period

MIEYX

• 1D: -0.38%
• 1M: -7.69%
• YTD: -7.16%
• 6M: -4.84%
• 1Y: 13.91%
• 3Y*: 16.63%
• 5Y*: 10.82%
• 10Y*: 12.71%

MOGAX

• 1D: —
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

MIEYX vs. MOGAX - Expense Ratio Comparison

MIEYX has a 0.46% expense ratio, which is lower than MOGAX's 0.61% expense ratio.

MOGAX

MassMutual 60/40 Allocation Fund

MIEYX

MM S&P 500 Index Fund

Return for Risk

MIEYX vs. MOGAX — Risk / Return Rank

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

MIEYX

MIEYX Risk / Return Rank: 42
MIEYX Sharpe Ratio Rank: 38
MIEYX Sortino Ratio Rank: 41
MIEYX Omega Ratio Rank: 45
MIEYX Calmar Ratio Rank: 38
MIEYX Martin Ratio Rank: 49

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.

MIEYX vs. MOGAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MM S&P 500 Index Fund (MIEYX) and MassMutual 60/40 Allocation Fund (MOGAX). 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.

	MIEYX	MOGAX	Difference
Sharpe ratio Return per unit of total volatility	0.80	—	—
Sortino ratio Return per unit of downside risk	1.25	—	—
Omega ratio Gain probability vs. loss probability	1.19	—	—
Calmar ratio Return relative to maximum drawdown	1.00	—	—
Martin ratio Return relative to average drawdown	4.87	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	MIEYX	MOGAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.80	—	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.43	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.57	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.37	—	—

Correlation

The correlation between MIEYX and MOGAX is 0.91, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

MIEYX vs. MOGAX - Dividend Comparison

MIEYX's dividend yield for the trailing twelve months is around 18.99%, more than MOGAX's 3.65% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MIEYX MM S&P 500 Index Fund	18.99%	17.63%	32.89%	7.13%	33.24%	13.29%	16.29%	6.38%	19.14%	21.81%	4.19%	2.29%
MOGAX MassMutual 60/40 Allocation Fund	3.65%	3.65%	6.23%	3.93%	1.84%	13.14%	3.65%	13.70%	15.46%	1.02%	1.55%	3.52%

Drawdowns

Drawdown Indicators

	MIEYX	MOGAX	Difference
Max Drawdown Largest peak-to-trough decline	-55.63%	—	—
Max Drawdown (1Y) Largest decline over 1 year	-12.18%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-36.63%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-36.63%	—	—
Current Drawdown Current decline from peak	-18.72%	—	—
Average Drawdown Average peak-to-trough decline	-12.60%	—	—
Ulcer Index Depth and duration of drawdowns from previous peaks	2.51%	—	—

Volatility

Volatility by Period

	MIEYX	MOGAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.26%	—	—
Volatility (6M) Calculated over the trailing 6-month period	9.09%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	18.14%	—	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	25.48%	—	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.54%	—	—