Unwrap.Fund
See how BMSBX fits your portfolio →
MF · holdings as filed 2026-05-31

What's inside BMSBX?

MFS Blended Research Mid Cap Equity Fund
Holdings
160
positions in the fund
Top 10
20%
of fund assets
Expense ratio
1.59%
net, per year
Fund size
$3B
total net assets

Top 20 holdings

RankLogoTicker / NameWeight
1
W
WDCWESTERN DIGITAL CORP
2.95%
2
F
FLEXFLEX LTD
2.68%
3
V
VLOVALERO ENERGY CORP
1.99%
4
C
CIENCIENA CORP
1.90%
5
V
VIKVIKING HOLDINGS LTD
1.86%
6
O
OKTAOKTA INC
1.83%
7
N
NTRSNORTHERN TRUST CORP
1.76%
8
A
ARMKARAMARK
1.71%
9
W
WABWABTEC CORP
1.62%
10
E
EIXEDISON INTERNATIONAL
1.59%
11
B
BPOPPOPULAR INC
1.51%
12
P
PSXPHILLIPS 66
1.48%
13
H
HUMHUMANA INC
1.46%
14
P
PCGP G & E CORP
1.45%
15
A
AMPAMERIPRISE FINANCIAL INC
1.44%
16
C
CWCURTISS-WRIGHT CORP
1.40%
17
F
FTITECHNIPFMC PLC
1.36%
18
D
DDOGDATADOG INC - CLASS A
1.35%
19
I
ILMNILLUMINA INC
1.30%
20
A
AGCOAGCO CORP
1.24%
Sectors
Top holdings — Information Technology
Your 10 largest positions in this sector
1
W
WDCWESTERN DIGITAL CORP
2.95%
2
F
FLEXFLEX LTD
2.68%
3
C
CIENCIENA CORP
1.90%
4
O
OKTAOKTA INC
1.83%
5
C
CWCURTISS-WRIGHT CORP
1.40%
6
F
FTITECHNIPFMC PLC
1.36%
7
D
DDOGDATADOG INC - CLASS A
1.35%
8
A
AGCOAGCO CORP
1.24%
9
B
BWXTBWX TECHNOLOGIES INC
1.12%
10
L
LDOSLEIDOS HOLDINGS INC
0.94%
Geography
Top holdings — United States
Your 10 largest positions in this country
1
W
WDCWESTERN DIGITAL CORP
2.95%
2
V
VLOVALERO ENERGY CORP
1.99%
3
C
CIENCIENA CORP
1.90%
4
O
OKTAOKTA INC
1.83%
5
N
NTRSNORTHERN TRUST CORP
1.76%
6
A
ARMKARAMARK
1.71%
7
W
WABWABTEC CORP
1.62%
8
E
EIXEDISON INTERNATIONAL
1.59%
9
P
PSXPHILLIPS 66
1.48%
10
H
HUMHUMANA INC
1.46%
Geography reflects each issuer's registered business address per SEC EDGAR filings where available, falling back to the exchange or listing where no SEC filing exists — not necessarily where a company's stock is primarily listed (e.g. TSMC is classified as Taiwan even though its ADR trades on the NYSE).
Hold BMSBX alongside other funds? See your combined true holdings, overlap, and blended fees — free, no signup.
Unwrap your portfolio →
Funds similar to BMSBX
BBVSXBridge Builder Small/Mid Cap Value Fund
16% overlap
Compare →
EQALInvesco Russell 1000 Equal Weight ETF
12% overlap
Compare →
VLUState Street(R) SPDR(R) S&P(R) 1500 Value Tilt ETF
8% overlap
Compare →
DFACDimensional U.S. Core Equity 2 ETF
8% overlap
Compare →
AVUSAvantis U.S. Equity ETF
8% overlap
Compare →
FNDBSchwab Fundamental U.S. Broad Market ETF
7% overlap
Compare →
Data source: official SEC Form N-PORT filings (as of 2026-05-31); expense ratio from SEC prospectus (risk/return) filings. Fund holdings are disclosed quarterly and may reflect a 60-day reporting delay.
Informational and educational only — not investment advice.