High Yield Bond Portfolio
NORTHWESTERN MUTUAL SERIES FUND INC

Portfolio concentration

As of March 31, 2026 · N-PORT
Holdings
520
Top-10 weight
7.88%
Effective holdings ?
313
Crowding ?
175.8

Holdings

As of March 31, 2026 · N-PORT
#SecurityTickerSharesValue% of fund
1 ARDONAGH GRP. FIN. 8.875% ARDGRP 7,300,000 $7.15M 1.02%
2 Medline Borrower, L.P. 6,000,000 $5.95M 0.85%
3 McAfee Corp 6,825,000 $5.64M 0.81%
4 TIHLLC 7 1/8 06/01/31 TIHLLC 5,100,000 $5.12M 0.73%
5 MADISON IAQ LLC SR UNSECURED 144A 06/29 5.875 MADIAQ 5,125,000 $5.03M 0.72%
6 TEP 6.75 03/15/34 144A TEP 4,925,000 $4.95M 0.71%
7 SKX 10 07/15/33 144a SKX 4,593,896 $4.89M 0.70%
8 ULTI 6.875 02/01/31 144A ULTI 5,000,000 $4.89M 0.70%
9 USI INC/NY SR UNSECURED 144A 01/32 7.5 COMINV 4,700,000 $4.76M 0.68%
10 HUB INTL. LTD 7.375% HBGCN 4,625,000 $4.72M 0.68%
11 GRIFOLS SA REGD 144A P/P 4.75000000 GRFSM 4,700,000 $4.60M 0.66%
12 BROPAR 5.875 04/15/29 144A BROPAR 4,625,000 $4.51M 0.65%
13 Restaurant Brands International Limited Partnership BCULC 4,700,000 $4.42M 0.63%
14 POWSOL 6.75 09/15/32 144A POWSOL 4,375,000 $4.41M 0.63%
15 EMRLD Borrower L.P./ Emerald Co-Issuer Inc. 4,225,000 $4.30M 0.62%
16 Clarivate Science Holdings Corp. 4,875,000 $4.23M 0.61%
17 TransDigm, Inc. 3,850,000 $3.94M 0.56%
18 TELENET FINANCE LUX NOTE SR SECURED 144A 03/28 5.5 TNETBB 4,000,000 $3.93M 0.56%
19 SS&C Technologies, Inc. 3,850,000 $3.85M 0.55%
20 MINERVA MERGER SUB INC ATHENA 4,025,000 $3.78M 0.54%
21 CORPBOND BWIN 3,750,000 $3.77M 0.54%
22 1261229 BC Ltd 3,675,000 $3.76M 0.54%
23 ICECR 6 08/01/32 144a ICECR 3,800,000 $3.70M 0.53%
24 HUB International Ltd. 3,475,000 $3.56M 0.51%
25 TRANSDIGM INC SR SECURED 144A 03/32 6.625 TDG 3,475,000 $3.54M 0.51%
26 ROCSOF 6.5 02/15/29 144A ROCSOF 3,925,000 $3.53M 0.51%
27 Cloud Software Group Inc 3,450,000 $3.33M 0.48%
28 IHO VERWALTUNGS GMBH SR SECURED 144A 11/32 8 SHAEFF 3,200,000 $3.28M 0.47%
29 AMWINS GRP. INC 4.875% AMWINS 3,400,000 $3.26M 0.47%
30 CELANESE US HOLDINGS LLC SR UNSEC 6.75% 04-15-33 CE 3,125,000 $3.21M 0.46%
31 Iron Mountain Inc. 3,125,000 $3.19M 0.46%
32 AMNTEC 7.25 08/01/32 144A AMNTEC 3,000,000 $3.10M 0.44%
33 LCM Investments Holdings II, LLC 2,975,000 $3.09M 0.44%
34 Bellring Intermediate Holdings, Inc. BRBR 3,075,000 $3.08M 0.44%
35 UPC BROADBAND FINCO BV SR SECURED 144A 07/31 4.875 SUNN 3,225,000 $3.07M 0.44%
36 Cloud Software Group, Inc. 3,125,000 $3.05M 0.44%
37 WHTCAP 7.375 11/15/30 144A WHTCAP 3,125,000 $3.03M 0.43%
38 SPX FLOW INC REGD 144A P/P 8.75000000 FLOW 2,950,000 $3.01M 0.43%
39 HUB INTL LTD HBGCN 3,075,000 $2.98M 0.43%
40 MXPRLL 7.75 07/15/30 144A MXPRLL 2,875,000 $2.92M 0.42%
41 RCM 6.875 11/15/31 144A RCM 2,975,000 $2.87M 0.41%
42 APLD COMPUTECO LLC SR SECURED 144A 12/30 9.25 APLD 2,775,000 $2.86M 0.41%
43 Industrial F&B Investments III Inc 2,825,000 $2.85M 0.41%
44 ANTERO MIDSTREAM PARTNERS LP / ANTERO MIDSTREAM FIN CORP 5.75% 01/15/2028 144A AM 2,825,000 $2.82M 0.40%
45 Garda World Security Corp 2,800,000 $2.80M 0.40%
46 ORGANON & CO/ORGANON FOR REGD 144A P/P 7.87500000 OGN 3,400,000 $2.80M 0.40%
47 AMYNTA BOR/WNTY AMYNTA 2,925,000 $2.77M 0.40%
48 United Parks And Resorts Inc. PRKS 2,900,000 $2.77M 0.40%
49 QUIKRETE HOLDINGS INC SR UNSECURED 144A 03/33 6.75 QUIKHO 2,725,000 $2.77M 0.40%
50 PSDO 7.5 06/01/31 144A PSDO 2,775,000 $2.76M 0.39%
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