Small Cap Growth Stock Portfolio
NORTHWESTERN MUTUAL SERIES FUND INC

Portfolio concentration

As of March 31, 2026 · N-PORT
Holdings
175
Top-10 weight
14.29%
Effective holdings ?
135
Crowding ?
413.2

Holdings

As of March 31, 2026 · N-PORT
#SecurityTickerSharesValue% of fund
1 BLOOM ENERGY CORP CL A 114,209 $15.47M 2.11%
2 ENSIGN GROUP INC 61,760 $12.44M 1.70%
3 MODINE MFG CO 53,630 $11.62M 1.59%
4 FIRSTCASH HOLDINGS INC 56,383 $10.60M 1.45%
5 NEXTRACKER INC CL A 81,108 $9.78M 1.33%
6 SPX TECHNOLOGIES INC 47,581 $9.51M 1.30%
7 VIAVI SOLUTIONS INC 273,176 $9.09M 1.24%
8 BRIDGEBIO PHARMA INC 121,026 $8.99M 1.23%
9 CREDO TECHNOLOGY GROUP HOLDING LTD 92,972 $8.73M 1.19%
10 MAREX GROUP PLC MRX 186,177 $8.30M 1.13%
11 PRIMORIS SVCS CORP 56,863 $8.13M 1.11%
12 FABRINET 15,083 $7.87M 1.07%
13 MOOG INC-CLASS A 24,999 $7.32M 1.00%
14 ATMUS FILTRATION TECHNOLOGIES INC 126,622 $7.19M 0.98%
15 ESCO TECHNOLOGIES INC 25,307 $7.12M 0.97%
16 ISHARES RUSSELL 2000 GROWTH MUTUAL FUND IWO US 22,323 $7.01M 0.96%
17 PROTAGONIST THERAPEUTICS INC 65,711 $6.93M 0.95%
18 AXSOME THERAPEUTICS INC 40,790 $6.89M 0.94%
19 MADRIGAL PHARMACEUTICALS INC 12,479 $6.53M 0.89%
20 MYR GROUP INC/DELAWARE 22,617 $6.39M 0.87%
21 STIFEL FINANCIAL CORP 86,324 $6.38M 0.87%
22 MKS INSTRUMENTS INC 27,743 $6.38M 0.87%
23 CARGURUS INC CL A 185,242 $6.31M 0.86%
24 ENCOMPASS HEALTH CORP 64,550 $6.24M 0.85%
25 MERIT MEDICAL SYSTEMS INC 88,846 $6.12M 0.84%
26 VERRA MOBILITY CORP 427,894 $6.11M 0.83%
27 CG ONCOLOGY INC 88,203 $5.97M 0.81%
28 RAMBUS INC 69,125 $5.95M 0.81%
29 DORMAN PRODUCTS INC 56,494 $5.90M 0.80%
30 CHEFS WAREHOUSE INC 98,560 $5.86M 0.80%
31 CARETRUST REIT INC 159,103 $5.83M 0.80%
32 SITIME CORP 16,797 $5.80M 0.79%
33 PERELLA WEINBERG PARTNERS 312,488 $5.67M 0.77%
34 SANMINA CORP 43,010 $5.58M 0.76%
35 BJS WHSL CLUB HLDGS INC 56,530 $5.56M 0.76%
36 WHITE MOUNTAINS INS GROUP LTD 2,516 $5.53M 0.75%
37 ACI WORLDWIDE INC 133,039 $5.46M 0.74%
38 LIFE TIME GROUP HOLDINGS INC 202,416 $5.45M 0.74%
39 COGENT BIOSCIENCES INC 141,079 $5.43M 0.74%
40 FTAI AVIATION LTD 21,930 $5.37M 0.73%
41 ALIGNMENT HEALTHCARE INC 302,732 $5.33M 0.73%
42 AZZ INC 42,327 $5.30M 0.72%
43 FTAI INFRASTRUCTURE LLC 1,047,076 $5.17M 0.71%
44 NAPCO SECURITY TECHNOLOGIES INC 131,094 $5.16M 0.70%
45 CLEAN HARBORS INC 17,960 $5.15M 0.70%
46 MIRUM PHARMACEUTICALS INC 55,682 $5.14M 0.70%
47 KONTOOR BRANDS INC 72,813 $5.12M 0.70%
48 RYDER SYSTEM INC 24,824 $5.08M 0.69%
49 DAVE INC 28,932 $5.04M 0.69%
50 James Hardie Industries Public Limited Company JHX 264,575 $5.01M 0.68%
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