BILS — SPDR Bloomberg 3-12 Month T-Bill ETF
Data updated: 2026-05-28
BILS — SPDR Bloomberg 3-12 Month T-Bill ETF data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Alternative · $4.07B AUM · 0.14% expense ratio · 4.0% 1-yr return. From SEC regulatory filings.
BILS Fund Overview
BILS — SPDR Bloomberg 3-12 Month T-Bill ETF is a US ETF managed by SPDR Series Trust, categorised as Alternative. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US ETF
- Manager: SPDR Series Trust
- Category: Alternative
- Assets under management: $4.07B
- 1-year return: 4.0%
- Ticker: BILS
- SEC CIK: 0001064642
- SEC series ID: S000069594
- Share class ID: C000222017
BILS Holdings
Top 10 holdings of SPDR Bloomberg 3-12 Month T-Bill ETF by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| State Street Global Advisors | 9.76% |
| United States Treasury | 6.92% |
| United States Treasury | 6.90% |
| United States Treasury | 6.84% |
| United States Treasury | 5.17% |
| United States Treasury | 4.36% |
| United States Treasury | 4.35% |
| United States Treasury | 4.21% |
| United States Treasury | 4.21% |
| United States Treasury | 4.21% |
BILS Portfolio Allocation
Asset-class allocation of SPDR Bloomberg 3-12 Month T-Bill ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Cash & Equivalents | 105.6% |
| Fixed Income | 4.2% |
BILS Performance
Total returns for BILS (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.8% |
| 1 year | 4.0% |
| 3 years (annualised) | 4.7% |
| 5 years (annualised) | 3.2% |
BILS Risk Information
Risk metrics for BILS, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 0.2%
BILS Costs and Fees
BILS costs about $14 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.14%
- Gross expense ratio: 0.14%
- Portfolio turnover: 0%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
BILS Cashflows
Over the 12 months to 2026-03, SPDR Bloomberg 3-12 Month T-Bill ETF had net inflows of $411.16M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | $178.73M |
| 2026-02 | $9.90M |
| 2026-01 | $14.85M |
| 2025-12 | −$29.83M |
| 2025-11 | $29.70M |
| 2025-10 | $14.77M |
BILS Debt Constituents
Largest debt holdings of SPDR Bloomberg 3-12 Month T-Bill ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Treasury | 4.21% |
BILS Prospectus and SEC Filings
Official SPDR Bloomberg 3-12 Month T-Bill ETF filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Alternative 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.