SYSB Holdings — iShares Systematic Bond ETF
Data updated: 2026-09-25
SYSB holds 842 securities. The top 10 make up 33.8% of net assets, led by BlackRock Cash Funds: Treasury, SL Agency Shares (8.51%) and BlackRock Cash Funds: Institutional, SL Agency Shares (7.52%). Corporate Bonds (44.4%) and Government Bonds (27.3%) are the largest sectors, and 106.7% of the portfolio is in United States. Debt holdings: 735 positions, 66.0% of assets.
Holdings cover 113.24% of net asset value (92.13% of total assets; remainder is cash and receivables). As of July 31, 2026 · N-PORT.
SYSB Portfolio Holdings
842 holdings of iShares Systematic Bond ETF by percentage of net assets, from the fund's SEC N-PORT filing as of July 31, 2026. The 100 largest are listed below; the interactive table on this page lists all 842.
| Holding | Ticker | Sector | % of net assets | Value (USD) |
|---|---|---|---|---|
| BlackRock Cash Funds: Treasury, SL Agency Shares | — | Funds & ETFs | 8.51% | $99.25M |
| BlackRock Cash Funds: Institutional, SL Agency Shares | — | Funds & ETFs | 7.52% | $87.72M |
| U.S. Treasury Bonds | — | Government Bonds | 3.17% | $36.96M |
| U.S. Treasury Bonds | — | Government Bonds | 3.08% | $35.95M |
| U.S. Treasury Notes | — | Government Bonds | 2.34% | $27.23M |
| U.S. Treasury Notes | — | Government Bonds | 2.16% | $25.22M |
| U.S. Treasury Notes | — | Government Bonds | 2.11% | $24.55M |
| U.S. Treasury Bonds | — | Government Bonds | 1.68% | $19.54M |
| U.S. Treasury Bonds | — | Government Bonds | 1.66% | $19.39M |
| U.S. Treasury Notes | — | Government Bonds | 1.60% | $18.63M |
| U.S. Treasury Bonds | — | Government Bonds | 1.54% | $17.99M |
| U.S. Treasury Bonds | — | Government Bonds | 1.52% | $17.73M |
| U.S. Treasury Bonds | — | Government Bonds | 1.46% | $17.01M |
| U.S. Treasury Bonds | — | Government Bonds | 1.35% | $15.74M |
| U.S. Treasury Notes | — | Government Bonds | 1.30% | $15.11M |
| U.S. Treasury Bonds | — | Government Bonds | 1.26% | $14.71M |
| Uniform Mortgage-Backed Security, TBA | — | Mortgage / Securitized | 1.10% | $12.80M |
| U.S. Treasury Bonds | — | Government Bonds | 1.07% | $12.51M |
| U.S. Treasury Notes | — | Government Bonds | 0.99% | $11.58M |
| U.S. Treasury Bonds | — | Government Bonds | 0.95% | $11.11M |
| Uniform Mortgage-Backed Security, TBA | — | Mortgage / Securitized | 0.82% | $9.59M |
| U.S. Treasury Notes | — | Government Bonds | 0.81% | $9.41M |
| Uniform Mortgage-Backed Security, TBA | — | Mortgage / Securitized | 0.72% | $8.44M |
| U.S. Treasury Notes | — | Government Bonds | 0.72% | $8.41M |
| Freddie Mac Pool | — | Mortgage / Securitized | 0.70% | $8.16M |
| Ginnie Mae | — | Mortgage / Securitized | 0.57% | $6.61M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.41% | $4.74M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.39% | $4.53M |
| Ginnie Mae II Pool | — | Mortgage / Securitized | 0.36% | $4.22M |
| Uniform Mortgage-Backed Security, TBA | — | Mortgage / Securitized | 0.36% | $4.20M |
| Freddie Mac Pool | — | Mortgage / Securitized | 0.35% | $4.13M |
| Freddie Mac Pool | — | Mortgage / Securitized | 0.34% | $3.91M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.31% | $3.66M |
| Uniform Mortgage-Backed Security, TBA | — | Mortgage / Securitized | 0.28% | $3.24M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.28% | $3.22M |
| Freddie Mac Pool | — | Mortgage / Securitized | 0.28% | $3.21M |
| Freddie Mac Pool | — | Mortgage / Securitized | 0.25% | $2.97M |
| Ginnie Mae II Pool | — | Mortgage / Securitized | 0.25% | $2.89M |
| Ginnie Mae II Pool | — | Mortgage / Securitized | 0.25% | $2.87M |
| Freddie Mac Pool | — | Mortgage / Securitized | 0.23% | $2.68M |
| Ginnie Mae | — | Mortgage / Securitized | 0.23% | $2.67M |
| Ginnie Mae II Pool | — | Mortgage / Securitized | 0.22% | $2.54M |
| Ginnie Mae | — | Mortgage / Securitized | 0.21% | $2.49M |
| Ginnie Mae | — | Mortgage / Securitized | 0.21% | $2.46M |
| Ginnie Mae II Pool | — | Mortgage / Securitized | 0.21% | $2.43M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.21% | $2.42M |
| Bank of America Corp | — | Corporate Bonds | 0.21% | $2.39M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.20% | $2.38M |
| Uniform Mortgage-Backed Security, TBA | — | Mortgage / Securitized | 0.20% | $2.30M |
| Ginnie Mae | — | Mortgage / Securitized | 0.20% | $2.28M |
| Ginnie Mae II Pool | — | Mortgage / Securitized | 0.19% | $2.25M |
| Uniform Mortgage-Backed Security, TBA | — | Mortgage / Securitized | 0.19% | $2.21M |
| Morgan Stanley | — | Corporate Bonds | 0.19% | $2.18M |
| Freddie Mac Pool | — | Mortgage / Securitized | 0.18% | $2.14M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.18% | $2.14M |
| ArcelorMittal SA | — | Corporate Bonds | 0.17% | $2.04M |
| PNC Financial Services Group Inc/The | — | Corporate Bonds | 0.17% | $2.03M |
| Santander Holdings USA Inc | — | Corporate Bonds | 0.17% | $2.03M |
| Citibank NA | — | Corporate Bonds | 0.17% | $2.03M |
| Freddie Mac Pool | — | Mortgage / Securitized | 0.17% | $2.02M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.17% | $2.01M |
| JPMorgan Chase & Co | — | Corporate Bonds | 0.17% | $1.99M |
| Truist Financial Corp | — | Corporate Bonds | 0.17% | $1.98M |
| Santander UK Group Holdings PLC | — | Corporate Bonds | 0.17% | $1.93M |
| Goldman Sachs Group Inc/The | — | Corporate Bonds | 0.16% | $1.91M |
| Morgan Stanley | — | Corporate Bonds | 0.16% | $1.91M |
| Oracle Corp | — | Corporate Bonds | 0.16% | $1.90M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.16% | $1.89M |
| Bank of America Corp | — | Corporate Bonds | 0.16% | $1.88M |
| Woodside Finance Ltd | — | Corporate Bonds | 0.16% | $1.87M |
| Autodesk Inc | — | Corporate Bonds | 0.16% | $1.86M |
| JPMorgan Chase & Co | — | Corporate Bonds | 0.16% | $1.85M |
| Uniform Mortgage-Backed Security, TBA | — | Mortgage / Securitized | 0.16% | $1.85M |
| HCA Inc | — | Corporate Bonds | 0.16% | $1.85M |
| Oracle Corp | — | Corporate Bonds | 0.16% | $1.84M |
| US Bancorp | — | Corporate Bonds | 0.16% | $1.83M |
| Pacific Gas and Electric Co | — | Corporate Bonds | 0.16% | $1.83M |
| Expand Energy Corp | — | Corporate Bonds | 0.16% | $1.83M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.16% | $1.83M |
| Delta Air Lines Inc | — | Corporate Bonds | 0.16% | $1.82M |
| Sabine Pass Liquefaction LLC | — | Corporate Bonds | 0.16% | $1.81M |
| Cheniere Corpus Christi Holdings LLC | — | Corporate Bonds | 0.15% | $1.80M |
| AppLovin Corp | — | Corporate Bonds | 0.15% | $1.80M |
| Bank of America Corp | — | Corporate Bonds | 0.15% | $1.79M |
| AT&T Inc | — | Corporate Bonds | 0.15% | $1.79M |
| Royal Caribbean Cruises Ltd | — | Corporate Bonds | 0.15% | $1.78M |
| Wells Fargo & Co | — | Corporate Bonds | 0.15% | $1.78M |
| Microchip Technology Inc | — | Corporate Bonds | 0.15% | $1.78M |
| Boeing Co/The | — | Corporate Bonds | 0.15% | $1.77M |
| T-Mobile USA Inc | — | Corporate Bonds | 0.15% | $1.77M |
| Capital One Financial Corp | — | Corporate Bonds | 0.15% | $1.77M |
| Salesforce Inc | — | Corporate Bonds | 0.15% | $1.77M |
| Occidental Petroleum Corp | — | Corporate Bonds | 0.15% | $1.77M |
| EQT Corp | — | Corporate Bonds | 0.15% | $1.76M |
| Salesforce Inc | — | Corporate Bonds | 0.15% | $1.76M |
| Orange SA | — | Corporate Bonds | 0.15% | $1.76M |
| Aon North America Inc | — | Corporate Bonds | 0.15% | $1.76M |
| Las Vegas Sands Corp | — | Corporate Bonds | 0.15% | $1.76M |
| Ingersoll Rand Inc | — | Corporate Bonds | 0.15% | $1.75M |
| Citizens Financial Group Inc | — | Corporate Bonds | 0.15% | $1.75M |
SYSB Sector Allocation
iShares Systematic Bond ETF holdings grouped by sector, by share of the portfolio's market value.
| Sector | Weight | Holdings |
|---|---|---|
| Corporate Bonds | 44.4% | 714 |
| Government Bonds | 27.3% | 21 |
| Funds & ETFs | 14.2% | 3 |
| Mortgage / Securitized | 14.1% | 99 |
| Unknown | 0.0% | 5 |
SYSB Country Allocation
Where iShares Systematic Bond ETF's holdings are domiciled, by percentage of net assets (largest 15).
| Country | % of net assets |
|---|---|
| United States | 106.7% |
| United Kingdom | 2.0% |
| Canada | 1.7% |
| Australia | 0.5% |
| Luxembourg | 0.5% |
| Japan | 0.4% |
| Unknown | 0.3% |
| Bermuda | 0.2% |
| France | 0.2% |
| Cayman Islands | 0.2% |
| Liberia | 0.1% |
| Spain | 0.1% |
| Netherlands | 0.1% |
| Ireland | 0.1% |
| Marshall Islands | 0.1% |
SYSB Portfolio Allocation
Asset-class allocation of iShares Systematic Bond ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 81.2% |
| Cash & Equivalents | 16.0% |
| Securitized | 16.0% |
SYSB Debt Constituents
Largest debt holdings of iShares Systematic Bond ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Treasury | 3.17% |
| United States Treasury | 3.08% |
| United States Treasury | 2.34% |
| United States Treasury | 2.16% |
| United States Treasury | 2.11% |
| United States Treasury | 1.68% |
| United States Treasury | 1.66% |
| United States Treasury | 1.60% |
| United States Treasury | 1.54% |
| United States Treasury | 1.52% |
For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.