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NORTHWESTERN MUTUAL SERIES FUND INC

Portfolio concentration

As of March 31, 2026 · N-PORT
Holdings
1023
Top-10 weight
15.24%
Effective holdings ?
225
Crowding ?
88.5

Holdings

As of March 31, 2026 · N-PORT
#SecurityTickerSharesValue% of fund
1 US TREASURY N/B 69,027,000 $68.48M 2.41%
2 US TREASURY N/B 52,325,000 $51.78M 1.83%
3 US TREASURY N/B 47,420,000 $47.49M 1.67%
4 US TREASURY N/B 63,076,000 $43.62M 1.54%
5 FNCL 5 4/26 42,800,000 $42.21M 1.49%
6 FNCL 5.5 4/26 40,400,000 $40.59M 1.43%
7 US TREASURY N/B 39,747,000 $39.70M 1.40%
8 US TREASURY N/B 38,463,000 $38.21M 1.35%
9 US TREASURY N/B 38,353,000 $36.65M 1.29%
10 US TREASURY N/B 31,650,000 $31.22M 1.10%
11 US TREASURY N/B 46,138,000 $30.85M 1.09%
12 U.S. Treasury Notes 26,952,000 $26.87M 0.95%
13 US TREASURY N/B 25,182,000 $25.26M 0.89%
14 US TREASURY N/B 33,843,000 $24.72M 0.87%
15 FREDDIE MAC POOL FR RA6565 FR 27,901,627 $23.95M 0.84%
16 US TREASURY N/B 31,217,000 $23.02M 0.81%
17 US TREASURY N/B 36,921,000 $22.96M 0.81%
18 Government National Mortgage Association REMICS GNR 22,085,568 $21.16M 0.75%
19 US TREASURY N/B 21,342,000 $21.01M 0.74%
20 FANNIE MAE POOL FN FS2648 FN 21,658,593 $19.85M 0.70%
21 US TREASURY N/B 18,746,000 $18.89M 0.67%
22 FNCI 4.5 4/25 18,800,000 $18.66M 0.66%
23 FNCL 5 6/24 18,700,000 $18.40M 0.65%
24 FANNIE MAE POOL FN CC0712 FN 18,020,568 $18.15M 0.64%
25 US TREASURY N/B 22,783,000 $17.15M 0.60%
26 G2 MA6994 20,691,698 $17.10M 0.60%
27 US TREASURY N/B 17,415,000 $17.08M 0.60%
28 G2 MA8346 17,717,425 $16.78M 0.59%
29 US TREASURY N/B 21,875,000 $16.05M 0.57%
30 FANNIE MAE REMICS FNR 2025-98 PK FNR 15,435,926 $15.34M 0.54%
31 FANNIE MAE POOL FN CC0267 FN 14,856,121 $15.17M 0.53%
32 G2 MA7051 18,109,041 $14.97M 0.53%
33 US TREASURY N/B 18,329,000 $13.36M 0.47%
34 FANNIE MAE POOL FN FS1918 FN 14,325,735 $12.93M 0.46%
35 US TREASURY N/B 18,590,000 $11.97M 0.42%
36 US TREASURY N/B 22,805,000 $11.90M 0.42%
37 US TREASURY N/B 12,108,000 $11.80M 0.42%
38 FNMA POOL FS6786 FN 02/54 FIXED VAR FN 11,625,138 $11.71M 0.41%
39 Government National Mortgage Association, TBA G2SF 11,200,000 $11.23M 0.40%
40 FREDDIE MAC POOL FR RJ4189 FR 10,770,392 $10.85M 0.38%
41 MORGAN STANLEY 11,000,000 $10.83M 0.38%
42 FANNIE MAE POOL FN FS5722 FN 11,955,985 $10.80M 0.38%
43 FNMA POOL BF0496 FN 07/60 FIXED 3 FN 12,171,576 $10.73M 0.38%
44 FREDDIE MAC POOL FR SD6421 FR 10,249,053 $10.68M 0.38%
45 FREDDIE MAC POOL FR RJ4190 FR 10,212,586 $10.43M 0.37%
46 US TREASURY N/B 10,147,000 $9.78M 0.34%
47 GOLDMAN SACHS GP 9,578,000 $9.52M 0.34%
48 US TREASURY N/B 15,262,000 $9.51M 0.34%
49 FANNIE MAE POOL FN CC0437 FN 9,073,184 $9.29M 0.33%
50 FANNIE MAE POOL FN CA8305 FN 10,499,348 $9.25M 0.33%
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