BlackRock Strategic Income Opportunities Portfolio (BSIKX) is an MF managed by BlackRock / iShares. Its largest position is UMBS, TBA (null), representing 8.75% of fund assets.
BlackRock Strategic Income Opportunities Portfolio Portfolio Holdings
Source: SEC Form N-PORT institutional portfolio disclosures
- Ticker:
- BSIKX
- Type:
- MF
- Manager:
- BlackRock / iShares
- Total Assets:
- —
- Report Date:
- Mar 31, 2026
- Filing Date:
- May 28, 2026
| Holding | Weight | Market Value | Shares |
|---|---|---|---|
|
-
UMBS, TBA
|
8.75% | $4,040,149,281.39 | 4,407,544,422 |
|
-
UMBS, TBA
|
7.04% | $3,251,458,642.82 | 3,193,600,000 |
|
-
UMBS, TBA
|
7.03% | $3,246,513,571.80 | 3,292,187,271 |
|
-
UMBS, TBA
|
5.12% | $2,362,492,428.29 | 2,317,696,000 |
|
-
UMBS, TBA
|
4.70% | $2,172,277,442.10 | 2,162,318,000 |
|
-
BLACKROCK LIQUIDITY FUNDS T-FU
|
4.46% | $2,058,381,612.46 | 2,058,381,612 |
|
-
U.S. TREASURY BILLS
|
2.48% | $1,143,680,587.59 | 1,145,990,400 |
|
-
UNITED STATES TREASURY
|
2.47% | $1,142,639,638.67 | 1,145,990,400 |
|
-
FNMA OR FHLMC
|
2.28% | $1,051,819,500.05 | 1,251,235,093 |
|
-
UMBS, TBA
|
1.87% | $865,324,659.21 | 985,362,000 |
|
-
UNIFORM MORTGAGE-BACKED SECURITIES
|
1.64% | $756,949,998.28 | 826,700,000 |
|
-
BLACKROCK FUNDS III
|
1.38% | $636,972,197.09 | 636,844,828 |
|
-
UMBS, TBA
|
1.09% | $504,182,652.38 | 522,466,000 |
|
-
GOVERNMENT NATIONAL MORTGAGE ASSOCIATION
|
0.88% | $408,304,931.56 | 405,721,000 |
|
-
GOVERNMENT NATIONAL MORTGAGE ASSOCIATION
|
0.87% | $400,611,369.71 | 414,754,000 |
|
-
ISHARES IBOXX USD INVESTMENT G
|
0.83% | $381,354,702.12 | 3,498,988 |
|
-
BLACKROCK ETF TRUST II
|
0.66% | $305,659,980.00 | 5,886,000 |
|
-
ISHARES IBOXX USD HIGH YIELD C
|
0.49% | $225,486,883.44 | 2,834,174 |
|
-
APPLIED MATERIALS INC /DE
|
0.38% | $174,270,609.03 | 3,123,452,126 |
|
-
FANNIE MAE
|
0.36% | $164,729,359.96 | 166,443,239 |
|
-
FEDERAL HOME LOAN MORTGAGE CORP
|
0.32% | $149,864,147.82 | 151,234,456 |
|
-
APPLIED MATERIALS INC /DE
|
0.29% | $132,938,376.01 | 735,233 |
|
-
VANGUARD INTERMEDIATE-TERM CORPORATE BOND ETF
|
0.28% | $130,189,168.25 | 1,573,283 |
|
-
FEDERAL HOME LOAN MORTGAGE CORP
|
0.27% | $124,124,823.50 | 125,337,655 |
|
-
FNMA
|
0.26% | $122,117,117.78 | 123,233,714 |
|
-
BARCLAYS MORTGAGE LOAN TRUST 2025-NQM5
|
0.26% | $118,650,813.51 | 116,590,147 |
|
-
BARCLAYS MORTGAGE LOAN TRUST 2025-N
|
0.25% | $117,151,147.52 | 115,051,244 |
|
-
BARCLAYS MORTGAGE LOAN TRUST 2025-NQM4
|
0.25% | $116,425,765.69 | 113,580,606 |
|
-
FANNIE MAE
|
0.25% | $115,986,578.95 | 115,210,899 |
|
-
FEDERAL HOME LOAN MORTGAGE CORP
|
0.23% | $107,164,948.33 | 108,279,910 |
|
-
GS FINANCE CORP
|
0.23% | $105,235,600.65 | 109,650,000 |
|
-
APPLIED MATERIALS INC /DE
|
0.22% | $102,634,655.20 | 1,360,120 |
|
-
FEDERAL HOME LOAN MORTGAGE CORP
|
0.22% | $102,132,317.47 | 101,416,520 |
|
-
U.S. TREASURY BILLS
|
0.22% | $99,868,917.00 | 100,000,000 |
|
-
FANNIE MAE
|
0.20% | $93,930,378.02 | 94,789,246 |
|
-
FEDERAL HOME LOAN MORTGAGE CORP
|
0.19% | $88,004,693.83 | 88,836,975 |
|
-
BARCLAYS MORTGAGE LOAN TRUST 2026-NQM3
|
0.19% | $87,658,513.56 | 86,465,139 |
|
-
HOME EFFICIENCY TRUST 2024-A-1
|
0.19% | $85,697,666.54 | 83,395,939 |
|
-
APPLIED MATERIALS INC /DE
|
0.19% | $85,667,335.88 | 296,396 |
|
-
APPLIED MATERIALS INC /DE
|
0.18% | $85,341,725.70 | 77,385 |
|
-
CITIGROUP INC
|
0.17% | $77,496,247.50 | 79,100,000 |
|
-
GOLDMAN SACHS BANK USA
|
0.16% | $75,667,060.00 | 79,100,000 |
|
-
APPLIED MATERIALS INC /DE
|
0.16% | $75,412,725.90 | 519,416,462 |
|
-
FEDERAL HOME LOAN MORTGAGE CORP
|
0.16% | $73,557,054.29 | 73,275,406 |
|
-
APPLIED MATERIALS INC /DE
|
0.15% | $68,914,585.52 | 1,166,120,930 |
|
-
APPLIED MATERIALS INC /DE
|
0.15% | $67,853,829.79 | 261,846 |
|
-
FEDERAL HOME LOAN MORTGAGE CORP
|
0.15% | $67,288,588.72 | 67,125,842 |
|
-
BARCLAYS MORTGAGE LOAN TRUST 2024-NQM4
|
0.14% | $65,743,127.08 | 65,916,375 |
|
-
FEDERAL HOME LOAN MORTGAGE CORP
|
0.14% | $65,327,257.43 | 64,707,899 |
|
-
FEDERAL NATIONAL MORTGAGE ASSOCIATION
|
0.14% | $64,275,103.46 | 63,756,280 |
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