MF · holdings as filed 2026-03-31

What's inside BRSIX?

Ultra-Small Company Market Fund
Holdings
542
positions in the fund
Top 10
14%
of fund assets
Expense ratio
0.75%
net, per year
Fund size
$123M
total net assets
Sectors
Top holdings — Health Care
Your 10 largest positions in this sector
1
A
ACRSACLARIS THERAPEUTICS INC
0.47%
2
A
ALLOALLOGENE THERAPEUTICS INC
0.45%
3
A
AVIRATEA PHARMACEUTICALS INC
0.44%
4
K
KODKODIAK SCIENCES INC
0.44%
5
A
ANROALTO NEUROSCIENCE INC
0.42%
6
M
MOVMOVADO GROUP INC
0.40%
7
B
BIOABIOAGE LABS INC
0.39%
8
C
CLYMCLIMB BIO INC
0.38%
9
N
NAUTNAUTILUS BIOTECHNOLOGY INC
0.38%
10
G
GLUEMONTE ROSA THERAPEUTICS INC
0.37%
Geography
Top holdings — United States
Your 10 largest positions in this country
1
A
AXTIAXT INC
0.89%
2
B
BWBABCOCK & WILCOX ENTERPR
0.79%
3
E
ELAENVELA CORP
0.75%
4
N
NGSNATURAL GAS SERVICES GROUP
0.61%
5
W
WTIW&T OFFSHORE INC
0.53%
6
S
SNDSMART SAND INC
0.51%
7
P
PPIHPERMA-PIPE INTERNATIONAL HOL
0.50%
8
S
SPIRSPIRE GLOBAL INC
0.49%
9
A
ACRSACLARIS THERAPEUTICS INC
0.47%
10
A
ALLOALLOGENE THERAPEUTICS INC
0.45%
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).
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Data source: official SEC Form N-PORT filings (as of 2026-03-31); 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.