BILS — SPDR Bloomberg 3-12 Month T-Bill ETF
Data updated: 2026-09-11
BILS — SPDR Bloomberg 3-12 Month T-Bill ETF. Alternative · $3.87B AUM · 0.14% expense ratio · 3.8% 1-yr return. Holdings, fees, performance and SEC 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: $3.87B
- 1-year return: 3.8%
- 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 | 8.06% |
| United States Treasury | 6.87% |
| United States Treasury | 6.70% |
| United States Treasury | 6.44% |
| United States Treasury | 5.34% |
| United States Treasury | 4.47% |
| United States Treasury | 4.47% |
| United States Treasury | 4.40% |
| United States Treasury | 4.29% |
| 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 | 107.7% |
BILS Performance
Total returns for BILS (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 1.7% |
| 1 year | 3.8% |
| 3 years (annualised) | 4.6% |
| 5 years (annualised) | 3.3% |
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 2026-06, SPDR Bloomberg 3-12 Month T-Bill ETF had net inflows of $34.06M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | −$19.89M |
| 2026-05 | −$99.35M |
| 2026-04 | −$79.47M |
| 2026-03 | $178.73M |
| 2026-02 | $9.90M |
| 2026-01 | $14.85M |
BILS Debt Constituents
No individual debt constituents are reported in SPDR Bloomberg 3-12 Month T-Bill ETF's latest SEC N-PORT filing.
BILS Prospectus and SEC Filings
Official SPDR Bloomberg 3-12 Month T-Bill ETF filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2025-10-24
- Prospectus (485BPOS) — filed 2024-10-24
- Prospectus supplement (497) — filed 2024-11-01
- Portfolio holdings (N-PORT) — filed 2026-08-28
- Portfolio holdings (N-PORT) — filed 2026-05-28
- Portfolio holdings (N-PORT) — filed 2026-02-26
- Annual census (N-CEN) — filed 2026-09-11
- Annual census (N-CEN) — filed 2025-09-12
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.