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State Street® SPDR® Bloomberg 3-12 Month T-Bill ETF
State Street® SPDR® Bloomberg 3-12 Month T-Bill ETF is an exchange-traded fund (ETF) from SPDR, traded under the ticker BILS (ISIN US78468R5239). It lets you buy a basket of holdings in a single trade, spreading your money across them rather than one company. In plain terms it is about very short-term, cash-like instruments, aimed at protecting your money and earning…
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About this fund
What you own
The Bloomberg 3-12 Month U.S. Treasury Bill Index index is the benchmark this fund aims to copy. By holding it, this fund gives you a stake in around 25 companies across United States in a single purchase.
How it works
The fund actually buys every share in the index it tracks (full replication).
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Owning every holding keeps things transparent — what is in the index is what the fund actually owns. It can be a touch costlier to run for indexes with thousands of tiny positions, since the fund has to buy and maintain them all. There is no swap bank involved, so there is no extra “what if the partner fails” question to weigh.
Cost
The yearly running cost of the fund, shown as a % of your money. Lower is cheaper.
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For example, a 0.20% fee works out at €0.20 a year for every €100 invested — that’s a generic illustration of the mechanic, not this fund’s own fee. It is skimmed quietly from inside the fund a little each day, so you never get a bill — but it drags on your return every year you hold. On a broad index ETF it is usually a small fraction of a percent; the gap between a cheap and a pricey fund looks tiny on day one but compounds over decades, which is why it is worth a glance.
Fund facts
Performance
Growth of $100 invested — both lines start at $100.
Compared with the average fund tracking the same index — our own data, not the licensed index itself.
Return, year by year
How bumpy has it been?
The bigger picture
What's inside
The 10 biggest holdings make up 28.3% of the fund.
Top 10 holdings
| # | Company | Weight |
|---|---|---|
| 12 | TREASURY BILL 01/27 0.00000 | 4.3% |
| 16 | TREASURY BILL 12/26 0.00000 | 3.9% |
| 18 | TREASURY BILL 11/26 0.00000 | 3.8% |
| 19 | TREASURY BILL 05/27 0.00000 | 2.9% |
| 20 | TREASURY BILL 07/27 0.00000 | 2.8% |
| 21 | TREASURY BILL 06/27 0.00000 | 2.8% |
| 22 | TREASURY BILL 03/27 0.00000 | 2.7% |
| 23 | TREASURY BILL 02/27 0.00000 | 2.5% |
| 24 | TREASURY BILL 04/27 0.00000 | 2.4% |
| 25 | SSI US GOV MONEY MARKET CLASS | 0.1% |
Where to buy this fund
Set from your language & location — change it if it's wrong.
Where it trades
| Exchange | Ticker | Currency | |
|---|---|---|---|
| NYSE | BILS | USD | ★ Primary |
| USD listings | |||
| E1 | BILSUSD | USD | |
| EO | BILSUSD | USD | |
| EU | BILSUSD | USD | |
| MF | BILS* | USD | |
| MM | BILS* | USD | |
| MU | BILS* | USD | |
| NYSE Arca | BILS | USD | |
| OC | BILS | USD | |
| UA | BILS | USD | |
| UB | BILS | USD | |
| UC | BILS | USD | |
| UD | BILS | USD | |
| UF | BILS | USD | |
| UM | BILS | USD | |
| US | BILS | USD | |
| UT | BILS | USD | |
| UX | BILS | USD | |
| VF | BILS | USD | |
| VG | BILS | USD | |
| VJ | BILS | USD | |
| VK | BILS | USD | |
| VL | BILS | USD | |
| VP | BILS | USD | |
| VT | BILS | USD | |
| VY | BILS | USD | |
| X1 | BILSUSD | USD | |
| X2 | BILSUSD | USD | |
| XA | BILSUSD | USD | |
| XE | BILSUSD | USD | |
| XF | BILSUSD | USD | |
| XG | BILSUSD | USD | |
| XH | BILSUSD | USD | |
| XJ | BILSUSD | USD | |
| XL | BILSUSD | USD | |
| XO | BILSUSD | USD | |
| XQ | BILSUSD | USD | |
| XT | BILSUSD | USD | |
| XU | BILSUSD | USD | |
| XV | BILSUSD | USD | |
| XW | BILSUSD | USD | |
| XX | BILSUSD | USD | |
| XY | BILSUSD | USD | |
| XZ | BILSUSD | USD | |
For serious comparison — full data holdings, percentiles, advanced risk, tilt, flows
Full holdings
As of 2026-08-19 · the fund's own published holdings.
| # | Company | Weight |
|---|---|---|
| 12 | TREASURY BILL 01/27 0.00000 | 4.3% |
| 16 | TREASURY BILL 12/26 0.00000 | 3.9% |
| 18 | TREASURY BILL 11/26 0.00000 | 3.8% |
| 19 | TREASURY BILL 05/27 0.00000 | 2.9% |
| 20 | TREASURY BILL 07/27 0.00000 | 2.8% |
| 21 | TREASURY BILL 06/27 0.00000 | 2.8% |
| 22 | TREASURY BILL 03/27 0.00000 | 2.7% |
| 23 | TREASURY BILL 02/27 0.00000 | 2.5% |
| 24 | TREASURY BILL 04/27 0.00000 | 2.4% |
| 25 | SSI US GOV MONEY MARKET CLASS | 0.1% |
How it ranks vs peers
Versus the Money market · United States · USD ETFs we track.
Advanced risk
Concentration depth
Roughly 25 companies are held, but the largest names carry most of the weight — so it behaves like ~22 equal-sized positions.
Similar funds
We found 6 funds that do much the same job as this one. To pick them we matched this fund's asset class and region, then show how close each match is below.
| State Street® SPDR® Bloomberg 3-12 Month T-Bill ETFSPDRYou're viewing | State Street® SPDR® Bloomberg 1-3 Month T-Bill ETFSPDRBroader match | iShares $ Treasury Bond 0-1yr UCITS ETFiSharesBroader match | iShares $ Treasury Bond 0-1yr UCITS ETFiSharesBroader match | iShares $ Treasury Bond 0-3 Month UCITS ETFiSharesBroader match | iShares $ Treasury Bond 0-3 Month UCITS ETFiSharesBroader match | State Street® SPDR® Bloomberg Short Term High Yield Bond ETFSPDRBroader match | |
|---|---|---|---|---|---|---|---|
| Why it's similar | This is the fund on this page. | Cash-likeUnknownPhysicalCheaper fee Tracks a different index in the same category. | Cash-likePhysicalCheaper fee Tracks a different index in the same category. | Cash-likePhysicalCheaper fee Tracks a different index in the same category. | Cash-likePhysicalCheaper fee Tracks a different index in the same category. | Cash-likePhysicalCheaper fee Tracks a different index in the same category. | Cash-likeUnknownPhysical Tracks a different index in the same category. |
| Index tracked | Bloomberg 3-12 Month U.S. Treasury Bill Index | Bloomberg 1-3 Month U.S. Treasury Bill Index | ICE U.S. Treasury Short Bond Index | ICE U.S. Treasury Short Bond Index | ICE 0-3 Month US Treasury Bill Index | ICE 0-3 Month US Treasury Bill Index | Bloomberg US High Yield 350mn Cash Pay 0-5 Yr 2% Capped Index |
| Yearly fee (TER) | 0.14% | 0.14% | 0.07% | 0.07% | 0.07% | 0.07% | 0.40% |
| All-in cost | 0.00% | 0.00% | 0.07% | 0.07% | 0.07% | 0.07% | 0.00% |
| Fund size | €3.3B | €40B | €23.3B | €22.9B | €5.7B | €5.6B | €4.1B |
| Domicile | United States | United States | Ireland | Ireland | Ireland | Ireland | United States |
| Replication | Physical (full) | Physical (full) | Physical (full) | Physical (full) | Physical (full) | Physical (full) | Physical (full) |
| 3-yr return p.a. | +0.0% | -0.0% | +4.7% | +0.5% | |||
| 5-yr return p.a. | -0.1% | +0.0% | +88.1% | -1.8% | |||
| # holdings | 25 | 20 | 66 | 66 | 30 | 30 | 1,142 |
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Finance Hamster provides educational information about ETFs and investing. It is not investment, tax, or legal advice, and not a recommendation to buy or sell any security. Markets carry risk; do your own research or consult a licensed adviser.