SSFDX — State Street Aggregate Bond Index Fund
Data updated: 2026-05-28
SSFDX — State Street Aggregate Bond Index Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. United States Multi-Cap / All-Cap Blend / Core Equity · $3.25B AUM · 0.22% expense ratio · 4.3% 1-yr return. From SEC regulatory filings.
SSFDX Fund Overview
SSFDX — State Street Aggregate Bond Index Fund is a US mutual fund managed by State Street Institutional Investment Trust, categorised as United States Multi-Cap / All-Cap Blend / Core Equity. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: State Street Institutional Investment Trust
- Category: United States Multi-Cap / All-Cap Blend / Core Equity
- Assets under management: $3.25B
- 1-year return: 4.3%
- Ticker: SSFDX
- SEC CIK: 0001107414
- SEC series ID: S000010699
- Share class ID: C000136670
SSFDX Holdings
Top 1 holdings of State Street Aggregate Bond Index Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| State Street Aggregate Bond Index Portfolio | 100.00% |
SSFDX Portfolio Allocation
Asset-class allocation of State Street Aggregate Bond Index Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 100.0% |
SSFDX Performance
Total returns for SSFDX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.0% |
| 1 year | 4.3% |
| 3 years (annualised) | 3.5% |
| 5 years (annualised) | 0.2% |
SSFDX Risk Information
Risk metrics for SSFDX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 3.4%
SSFDX Costs and Fees
SSFDX costs about $22 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.22%
- Gross expense ratio: 0.32%
- Portfolio turnover: 17%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
SSFDX Cashflows
Over the 12 months to 2026-03, State Street Aggregate Bond Index Fund had net inflows of $1.59B, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | $216.39M |
| 2026-02 | $54.74M |
| 2026-01 | $20.88M |
| 2025-12 | $157.19M |
| 2025-11 | $54.84M |
| 2025-10 | $97.10M |
SSFDX Debt Constituents
No individual debt constituents are reported in State Street Aggregate Bond Index Fund's latest SEC N-PORT filing.
SSFDX Prospectus and SEC Filings
Official State Street Aggregate Bond Index Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other United States Multi-Cap / All-Cap Blend / Core Equity funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.