MassMutual Core Bond Fund (MCBYX)

NASDAQ · Mutual Fund · Delayed Price · Currency is USD
9.27
0.00 (0.00%)
At close: Dec 26, 2025
3.46%
Fund Assets878.65M
Expense Ratio0.62%
Min. Investment$100,000
Turnover248.00%
Dividend (ttm)0.41
Dividend Yield4.38%
Dividend Growth12.77%
Payout FrequencyMonthly
Ex-Dividend DateNov 28, 2025
Previous Close9.27
YTD Return7.77%
1-Year Return8.18%
5-Year Return1.48%
52-Week Low8.49
52-Week High9.30
Beta (5Y)n/a
Holdings461
Inception DateJan 1, 1998

About MCBYX

MassMutual Core Bond Fund Service Class is an open-ended mutual fund focused on the U.S. fixed income market. Its primary objective is to achieve a high total rate of return while maintaining prudent investment risk and preserving capital. The fund primarily invests at least 80% of its net assets in investment grade fixed income securities, including U.S. government securities, corporate bonds, mortgage-backed, and other asset-backed securities rated Baa or higher by Moody’s or BBB or higher by S&P. Managed by MML Investment Advisers, LLC and Barings LLC, the fund utilizes a diversified approach, with more than 370 individual holdings and a relatively high portfolio turnover. It benchmarks its performance against the Bloomberg U.S. Aggregate Bond Index, aiming to match its average duration within a tight range. This core bond fund plays a central role for investors seeking broad exposure to the investment grade bond market, offering a blend of corporate, government, and securitized debts. Its strategy makes it a foundational fixed income holding for balanced portfolios, appealing to those prioritizing stable income generation and moderate interest rate risk, typical of the intermediate-term core bond category.

Fund Family MassMutual
Category Intermediate Core Bond
Performance Rating Above Average
Risk Rating Above Average
Stock Exchange NASDAQ
Ticker Symbol MCBYX
Share Class Service Class
Index Bloomberg U.S. Aggregate Bond TR

Performance

MCBYX had a total return of 8.18% in the past year, including dividends. Since the fund's inception, the average annual return has been 6.41%.

Other Share Classes

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

SymbolShare ClassExpense Ratio
MCZZXClass I0.42%
MCBDXClass R50.52%
MCBLXAdministrative Class0.72%
MCZRXClass R40.87%

Top 10 Holdings

16.21% of assets
NameSymbolWeight
United States Treasury - U.S. Treasury NotesT.3.625 08.31.302.48%
Freddie Mac Pooln/a2.12%
State Street Global Advisors - State Street Navigator Securities Lending Government Money Market Portfolion/a2.05%
United States Treasury - U.S. Treasury NotesT.3.875 08.31.322.05%
UMBS, TBA - Uniform Mortgage-Backed Security, TBAFNCI.5 10.111.50%
United States Treasury - U.S. Treasury BondsT.2.25 08.15.491.47%
United States Treasury - U.S. Treasury NotesT.4.875 05.31.261.47%
Fannie Mae PoolFN.FA00951.14%
BGME Trust 2021-VRBGME.2021-VR C0.99%
Fannie Mae PoolFN.CB38420.94%
View More Holdings

Dividend History

Ex-DividendAmountPay Date
Nov 28, 2025$0.03007Dec 1, 2025
Oct 31, 2025$0.03317Nov 3, 2025
Sep 30, 2025$0.03689Oct 1, 2025
Aug 29, 2025$0.03248Sep 2, 2025
Jul 31, 2025$0.0343Aug 1, 2025
Jun 30, 2025$0.03555Jul 1, 2025
Full Dividend History