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BILSvsSMTHETF Comparison

ETF 1
BILS

State Street SPDR Bloomberg 3-12 Month T-Bill ETF

This fund is part of
Money Market Bonds
+0.02%
VS
ETF 2
SMTH

ALPS Smith Core Plus Bond ETF

This fund is part of
US Aggregate Bonds
+0.2%

State Street SPDR Bloomberg 3-12 Month T-Bill ETF (BILS) belongs to the Money Market Bonds segment. ALPS Smith Core Plus Bond ETF (SMTH) is part of the US Aggregate Bonds segment. BILS's top 1 sector exposures are Sovereign. In contrast, SMTH's top sector exposures are Sovereign, Finance and Industrials. BILS is less expensive with a Total Expense Ratio (TER) of 0.1354%, versus 0.59% for SMTH. BILS is up 2.58% year-to-date (YTD) with +$44M in YTD flows. SMTH performs worse with -2.61% YTD performance, and +$1.41B in YTD flows. Run a side-by-side ETF comparison of BILS and SMTH 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 SMTH performance and flow charts

Performance

-2.0-1.5-1.0-0.50.0%Sep 1Sep 8Sep 15Sep 22Sep 29

Cumulative Flows

0 M200 M400 M600 MSep 1Sep 8Sep 15Sep 22Sep 29

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Daily, global ETF data for advanced analysis or integration into apps (API), from our partner Trackinsight.

Historic performance and flows
Data as of 10/01/2026
1M3MYTD1Y3Y5Y
Perf.
BILS
SMTH
+0.26%-2.25%
+0.90%-3.25%
+2.58%-2.61%
+3.58%-2.03%
+14.07%n/a
+18.99%n/a
Flows
BILS
SMTH
+$25M+$666M
+$40M+$799M
+$44M+$1.41B
+$59M+$1.70B
+$1.18B-
+$3.89B-
Volatility and drawdown
3M1Y3Y5Y
Volatility
BILS
SMTH
+0.20%+4.00%
+0.18%+3.66%
+0.22%n/a
+0.27%n/a
Max drawdown
BILS
SMTH
-0.00%-3.51%
-0.00%-4.41%
-0.00%n/a
-0.36%n/a
Max drawdown duration
BILS
SMTH
2d87d
2d214d
2dn/a
359dn/a
Trading data

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BILS
SMTH
Last sale
10/2/2026 at 1:30 PM
$99.09
$24.53
Previous close
10/01/2026
$99.07
$24.58
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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SMTH
is actively managed and doesn’t replicate an index

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BILS
SMTH
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
SMTH
Last price
$99.09
$24.53
1D performance
+0.02%
-0.22%
AuM$3.89 B$3.59 B
E/R0.1354%0.59%
Characteristics
BILS
SMTH
Management strategyPassiveActive
ProviderState Street Investment ManagementALPS
BenchmarkBloomberg 3–12 Month U.S. Treasury Bill Index-
N° of holdings18249
Asset classFixed Income-
Trailing 12m distribution yield
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Inception dateSeptember 23, 2020December 5, 2023
ESGNoNo
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Exposure

Countries

BILS
USA
74.24%
Other
25.76%
SMTH
USA
75.22%
Other
24.78%

Sectors

BILS
Sovereign
74.24%
Other
25.76%
SMTH
Sovereign
39.91%
Finance
12.14%
Industrials
7.25%
Other
40.69%
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Diversification

BILS

Total weight of top 15 holdings out of 15

75.05%
SMTH

Total weight of top 15 holdings out of 15

45.38%

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%
SMTH
USA, Notes 3.375% 29feb2028, USD (AY-2028)
5.02%
USA, Notes 4.375% 15may2036, USD (C-2036)
4.82%
USA, Notes 4% 31may2028, USD (BC-2028)
4.14%
USA, Bonds 4.625% 15nov2045, USD
3.94%
USA, Notes 4.125% 31oct2029, USD (AF-2029)
3.89%
US91282CRF04
3.78%
US91282CRG86
3.41%
USA, Bonds 5% 15may2056, USD
3.03%
USA, Bonds 4.625% 15nov2055, USD
2.89%
USA, Notes 2.25% 15nov2027, USD (F-2027)
2.71%
USA, Bonds 4.875% 15aug2045, USD
2.47%
USA, Bonds 4.75% 15aug2055, USD
2.10%
US912810UW61
1.24%
USA, Notes 4.25% 31jul2028, USD (BE-2028)
0.98%
USA, Notes 4.375% 31jul2031, USD (AB-2031)
0.98%
Frequently asked questions about BILS and SMTH

How have the BILS and SMTH ETFs performed in 2026?

As of October 1, 2026, BILS is up 2.58% year-to-date (YTD), while SMTH has lost -2.61%. That puts BILS better performer ahead so far this year.

Which ETF is attracting more investor money: BILS or SMTH?

Year-to-date, the BILS ETF saw +$44M in flows, compared to +$1.41B for SMTH.

Which ETF is more volatile: BILS or SMTH?

Over the past year, BILS had a volatility of 0.18%, while SMTH experienced 3.66%.

Which ETF is bigger: BILS or SMTH?

As of October 1, 2026, BILS holds $3.89 B in assets under management (AUM), while SMTH manages $3.59 B.

What sectors do the BILS and SMTH ETFs invest in?

BILS leans toward sectors like Sovereign. Meanwhile, SMTH focuses on Sovereign, Finance and Industrials.

What are the top holdings of the BILS ETF and SMTH ETF?

BILS top holdings include USA, Bills 0% 21jan2027, USD (364D), USA, Bills 0% 18feb2027, USD (364D) and USA, Bills 0% 24dec2026, USD (363D). SMTH holds in its top three: USA, Notes 3.375% 29feb2028, USD (AY-2028), USA, Notes 4.375% 15may2036, USD (C-2036) and USA, Notes 4% 31may2028, USD (BC-2028).

Which ETF is more diversified: BILS or SMTH?

BILS holds 23 securities with 75.05% of its assets in the top 15. SMTH has 925 securities and a top 15 weight of 45.38%.

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