BILSvsBDBTETF Comparison
ETF 1
BILS
State Street SPDR Bloomberg 3-12 Month T-Bill ETF
This fund is part of
Money Market Bonds
+0.03%
VS
State Street SPDR Bloomberg 3-12 Month T-Bill ETF (BILS) belongs to the Money Market Bonds segment. Bluemonte Core Bond ETF (BDBT) is part of the US Aggregate Bonds segment. BILS's top 1 sector exposures are Sovereign. In contrast, BDBT's top sector exposures are Sovereign, Finance and Industrials. BILS is less expensive with a Total Expense Ratio (TER) of 0.1354%, versus 0.27% for BDBT. BILS is up 2.61% year-to-date (YTD) with +$54M in YTD flows. BDBT performs worse with -2.59% YTD performance, and +$104M in YTD flows. Run a side-by-side ETF comparison of BILS and BDBT below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
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BILS vs BDBT performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/02/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | BILS BDBT | +0.28%-1.97% | +0.87%-3.11% | +2.61%-2.59% | +3.61%-2.10% | +14.10%n/a | +19.03%n/a |
| Flows | BILS BDBT | +$35M+$11M | +$60M+$20M | +$54M+$104M | +$104M+$161M | +$1.19B- | +$3.90B- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | BILS BDBT | +0.19%+4.14% | +0.18%+3.87% | +0.22%n/a | +0.27%n/a |
| Max drawdown | BILS BDBT | -0.00%-3.23% | -0.00%-4.39% | -0.00%n/a | -0.36%n/a |
| Max drawdown duration | BILS BDBT | 2d88d | 2d215d | 2dn/a | 358dn/a |
Trading data
BILS | BDBT | |
Last sale 10/2/2026 at 1:30 PM | $99.09 | $24.10 |
| Previous close 10/01/2026 | $99.07 | $24.16 |
| Consolidated volume 10/01/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of September 30, 2026
1-year trailing difference
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BDBT
is actively managed and doesn’t replicate an indexBILS | BDBT | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 10/2/2026 at 1:30 PM
Live
Closed
BILS | BDBT | |
|---|---|---|
| Last price | $99.09 | $24.10 |
| 1D performance | +0.02% | -0.25% |
| AuM | $3.90 B | $482.83 M |
| E/R | 0.1354% | 0.27% |
Characteristics
BILS | BDBT | |
|---|---|---|
| Management strategy | Passive | Active |
| Provider | State Street Investment Management | Bluemonte Investment Management |
| Benchmark | Bloomberg 3–12 Month U.S. Treasury Bill Index | - |
| N° of holdings | 18 | 11226 |
| Asset class | Fixed Income | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | September 23, 2020 | June 23, 2025 |
| ESG | No | No |
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Exposure
Countries
BILS
USA
74.24%
Other
25.76%
BDBT
USA
76.53%
Other
23.47%
Sectors
BILS
Sovereign
74.24%
Other
25.76%
BDBT
Sovereign
46.42%
Finance
10.14%
Other
43.44%
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Diversification
BILS
Total weight of top 15 holdings out of 15
75.05%
BDBT
Total weight of top 15 holdings out of 15
11.03%
Top 15 holdings
Data as of August 31, 2026
BILS
USA, Bills 0% 21jan2027, USD (364D)
7.28%
USA, Bills 0% 18feb2027, USD (364D)
7.10%
USA, Bills 0% 24dec2026, USD (363D)
7.01%
USA, Bills 0% 7jan2027, USD (182D)
4.60%
USA, Bills 0% 14jan2027, USD (182D)
4.60%
USA, Bills 0% 28jan2027, USD (182D)
4.59%
US912797WB95
4.58%
US912797WC78
4.57%
USA, Bills 0% 3dec2026, USD (182D)
4.49%
USA, Bills 0% 10dec2026, USD (182D)
4.48%
USA, Bills 0% 17dec2026, USD (182D)
4.48%
USA, Bills 0% 4feb2027, USD (182D)
4.43%
USA, Bills 0% 31dec2026, USD (182D)
4.43%
US912797WG82
4.20%
US912797WH65
4.20%
BDBT
BlackRock Cash Funds - Institutional
2.35%
USA, Notes 3.5% 30sep2029, USD (AD-2029)
0.70%
USA, Notes 4.625% 15feb2035, USD (B-2035)
0.64%
USA, Notes 4.25% 15nov2034, USD (F-2034)
0.64%
USA, Notes 4.375% 15may2034, USD (C-2034)
0.63%
USA, Notes 4.25% 15may2035, USD (C-2035)
0.63%
USA, Notes 4.25% 15aug2035, USD (E-2035)
0.63%
USA, Notes 4.375% 15may2036, USD (C-2036)
0.63%
USA, Notes 4.125% 15feb2036, USD (B-2036)
0.62%
USA, Notes 4% 15nov2035, USD (F-2035)
0.61%
USA, Notes 3.875% 15aug2034, USD (E-2034)
0.61%
USA, Notes 4% 15feb2034, USD (B-2034)
0.61%
USA, Notes 4.5% 15nov2033, USD (F-2033)
0.61%
USA, Notes 4% 28feb2030, USD (H-2030)
0.58%
USA, Notes 3.875% 15aug2033, USD (E-2033)
0.55%
Frequently asked questions about BILS and BDBT
How have the BILS and BDBT ETFs performed in 2026?
As of October 2, 2026, BILS is up 2.61% year-to-date (YTD), while BDBT has lost -2.59%. That puts BILS better performer ahead so far this year.
Which ETF is attracting more investor money: BILS or BDBT?
Year-to-date, the BILS ETF saw +$54M in flows, compared to +$104M for BDBT.
Which ETF is more volatile: BILS or BDBT?
Over the past year, BILS had a volatility of 0.18%, while BDBT experienced 3.87%.
Which ETF is bigger: BILS or BDBT?
As of October 2, 2026, BILS holds $3.90 B in assets under management (AUM), while BDBT manages $482.83 M.
What sectors do the BILS and BDBT ETFs invest in?
BILS leans toward sectors like Sovereign. Meanwhile, BDBT focuses on Sovereign and Finance.
What are the top holdings of the BILS ETF and BDBT ETF?
BILS top holdings include USA, Bills 0% 21jan2027, USD (364D), USA, Bills 0% 18feb2027, USD (364D) and USA, Bills 0% 24dec2026, USD (363D). BDBT holds in its top three: BlackRock Cash Funds - Institutional, USA, Notes 3.5% 30sep2029, USD (AD-2029) and USA, Notes 4.625% 15feb2035, USD (B-2035).
Which ETF is more diversified: BILS or BDBT?
BILS holds 23 securities with 75.05% of its assets in the top 15. BDBT has 20890 securities and a top 15 weight of 11.03%.
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