MM S&P 500® Index A (MMFFX)

Fund Assets	2.21B
Expense Ratio	0.74%
Min. Investment	$0.00
Turnover	5.00%
Dividend (ttm)	2.44
Dividend Yield	16.63%
Dividend Growth	-46.87%
Payout Frequency	Annual
Ex-Dividend Date	Dec 15, 2025

Previous Close	14.68
YTD Return	12.53%
1-Year Return	19.26%
5-Year Return	63.89%
52-Week Low	12.15
52-Week High	15.66
Beta (5Y)	1.00
Holdings	507
Inception Date	Apr 1, 2014

About MMFFX

MM S&P 500 Index Fund Class A is a mutual fund designed to replicate the total return performance of the S&P 500 Index, a widely recognized benchmark representing large-cap U.S. equities. The primary goal of this passively managed fund is to mirror the aggregate results of the largest publicly traded companies in the United States by holding their stocks in similar proportions to the index itself. Managed by MassMutual since 2014, the fund adopts a large blend investment style, meaning it invests across various sectors while focusing on established, high-capitalization firms. Key portfolio holdings typically include prominent technology, consumer cyclical, and financial services companies, such as Apple, Microsoft, and Amazon. With an expense ratio considered average for its category, MM S&P 500 Index Fund Class A offers investors low-turnover exposure to the performance of the broader U.S. equity market, making it a foundational component for those seeking broad market coverage and diversification through a single vehicle.

• Fund Family: MassMutual
• Category: Large Blend
• Performance Rating: Average
• Risk Rating: Average
• Stock Exchange: NASDAQ
• Ticker Symbol: MMFFX
• Share Class: Class A
• Index: S&P 500 TR

Performance

MMFFX had a total return of 19.26% in the past year, including dividends. Since the fund's inception, the average annual return has been 12.04%.

Equivalent Funds

These are funds that follow the same index from the other major fund companies.

Symbol	Provider	Name	Expense Ratio
FDFIX	Fidelity	Fidelity Flex 500 Index Fund	n/a
VFFSX	Vanguard	Vanguard 500 Index Institutional Select	0.01%
FLCPX	Fidelity	Fidelity SAI U.S. Large Cap Index Fund	0.02%
VFIAX	Vanguard	Vanguard 500 Index Fund Admiral Shares	0.04%
FXAIX	Fidelity	Fidelity 500 Index Fund	0.02%

Other Share Classes

These are alternative share classes of the same fund, from the same provider.

Symbol	Share Class	Expense Ratio
MMIZX	Class I	0.14%
MIEZX	Class R5	0.24%
MMIEX	Service Class	0.39%
MIEYX	Administrative Class	0.49%

Top 10 Holdings

36.19% of assets

Name	Symbol	Weight
NVIDIA Corporation	NVDA	7.47%
Apple Inc.	AAPL	6.55%
Microsoft Corporation	MSFT	4.27%
Amazon.com, Inc.	AMZN	3.60%
Alphabet Inc.	GOOGL	3.23%
Broadcom Inc.	AVGO	2.76%
Alphabet Inc.	GOOG	2.57%
Micron Technology, Inc.	MU	2.01%
Meta Platforms, Inc.	META	1.91%
Tesla, Inc.	TSLA	1.83%

Dividend History

Ex-Dividend	Amount	Pay Date
Dec 15, 2025	$2.43778	Dec 16, 2025
Dec 13, 2024	$4.58835	Dec 16, 2024
Dec 13, 2023	$1.02063	Dec 14, 2023
Dec 14, 2022	$4.19155	Dec 15, 2022
Dec 16, 2021	$2.67043	Dec 17, 2021
Dec 14, 2020	$2.92232	Dec 15, 2020

Data Sources: Tiingo, Twelve Data, and more

Historical data is provided by Tiingo. Delayed stock pricing data is provided by Twelve Data. Several fund data points are also provided by Finnhub.

Last checked:

Aug 26, 2026

Data Sources Report a data error