SMTHvsAGGETF Comparison
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ALPS Smith Core Plus Bond ETF (SMTH) and iShares Core U.S. Aggregate Bond ETF (AGG) belong to the same industry segment: US Aggregate Bonds. Both ETFs have the same top 3 sector exposures: Sovereign, Finance and Industrials. SMTH is more expensive with a Total Expense Ratio (TER) of 0.59%, versus 0.03% for AGG. SMTH is down -1.65% year-to-date (YTD) with +$1.42B in YTD flows. AGG performs better with -1.59% YTD performance, and +$9.47B in YTD flows. Run a side-by-side ETF comparison of SMTH and AGG 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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SMTH vs AGG performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/15/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | SMTH AGG | -0.34%-0.13% | -1.95%-1.82% | -1.65%-1.59% | -1.53%-1.39% | n/a+14.89% | n/a-1.74% |
| Flows | SMTH AGG | +$643M+$2.12B | +$777M+$3.85B | +$1.42B+$9.47B | +$1.68B+$12.44B | -+$47.93B | -+$66.87B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | SMTH AGG | +4.09%+4.37% | +3.68%+3.89% | n/a+4.95% | n/a+5.93% |
| Max drawdown | SMTH AGG | -3.25%-3.28% | -4.53%-4.64% | n/a-4.86% | n/a-17.35% |
| Max drawdown duration | SMTH AGG | 51d51d | 228d228d | n/a284d | n/a1555d |
Trading data
SMTH | AGG | |
Last sale 10/16/2026 at 1:30 PM | $24.78 | $95.39 |
| Previous close 10/15/2026 | $24.75 | $95.41 |
| Consolidated volume 10/15/2026 | ||
| 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 indexSMTH | AGG | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 10/16/2026 at 1:30 PM
Live
Closed
SMTH | AGG | |
|---|---|---|
| Last price | $24.78 | $95.39 |
| 1D performance | +0.10% | -0.02% |
| AuM | $3.63 B | $138.47 B |
| E/R | 0.59% | 0.03% |
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Exposure
Countries
SMTH
USA
75.22%
Other
24.78%
AGG
USA
76.71%
Other
23.29%
Sectors
SMTH
Sovereign
39.91%
Finance
12.14%
Industrials
7.25%
Other
40.69%
AGG
Sovereign
47.19%
Finance
9.95%
Industrials
7.05%
Other
35.81%
Diversification
SMTH
Total weight of top 15 holdings out of 15
45.38%
AGG
Total weight of top 15 holdings out of 15
8.43%
Top 15 holdings
Data as of August 31, 2026
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%
AGG
BlackRock Cash Funds - Institutional
3.01%
USA, Notes 4.625% 15feb2035, USD (B-2035)
0.41%
USA, Notes 4.25% 15nov2034, USD (F-2034)
0.40%
USA, Notes 4.375% 15may2034, USD (C-2034)
0.40%
USA, Notes 4% 28feb2030, USD (H-2030)
0.40%
USA, Notes 4.125% 15feb2036, USD (B-2036)
0.39%
USA, Notes 3.875% 15aug2034, USD (E-2034)
0.39%
USA, Notes 4.25% 15may2035, USD (C-2035)
0.39%
USA, Notes 4.5% 15nov2033, USD (F-2033)
0.39%
USA, Notes 4.25% 15aug2035, USD (E-2035)
0.38%
USA, Notes 3.875% 15jul2028, USD (AQ-2028)
0.38%
USA, Notes 4% 15nov2035, USD (F-2035)
0.38%
USA, Notes 4% 15feb2034, USD (B-2034)
0.37%
USA, Notes 4.375% 15may2036, USD (C-2036)
0.37%
USA, Notes 3.5% 15oct2028, USD (AT-2028)
0.37%
Frequently asked questions about SMTH and AGG
How have the SMTH and AGG ETFs performed in 2026?
As of October 15, 2026, SMTH is down -1.65% year-to-date (YTD), while AGG has lost -1.59%. That puts AGG better performer ahead so far this year.
Which ETF is attracting more investor money: SMTH or AGG?
Year-to-date, the SMTH ETF saw +$1.42B in flows, compared to +$9.47B for AGG.
Which ETF is more volatile: SMTH or AGG?
Over the past year, SMTH had a volatility of 3.68%, while AGG experienced 3.89%.
Which ETF is bigger: SMTH or AGG?
As of October 15, 2026, SMTH holds $3.63 B in assets under management (AUM), while AGG manages $138.47 B.
What sectors do the SMTH and AGG ETFs invest in?
SMTH leans toward sectors like Sovereign, Finance and Industrials. Meanwhile, AGG focuses on Sovereign, Finance and Industrials.
What are the top holdings of the SMTH ETF and AGG ETF?
SMTH top holdings include USA, Notes 3.375% 29feb2028, USD (AY-2028), USA, Notes 4.375% 15may2036, USD (C-2036) and USA, Notes 4% 31may2028, USD (BC-2028). AGG holds in its top three: BlackRock Cash Funds - Institutional, USA, Notes 4.625% 15feb2035, USD (B-2035) and USA, Notes 4.25% 15nov2034, USD (F-2034).
Which ETF is more diversified: SMTH or AGG?
SMTH holds 925 securities with 45.38% of its assets in the top 15. AGG has 13256 securities and a top 15 weight of 8.43%.
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