SDSIvsSIOETF Comparison
ETF 1
SDSI
American Century Short Duration Strategic Income ETF
This fund is part of
Intl Aggregate Bonds
-0.07%
VS
American Century Short Duration Strategic Income ETF (SDSI) belongs to the Intl Aggregate Bonds segment. Touchstone Strategic Income Opportunities ETF (SIO) is part of the Multi-Asset: Other segment. SDSI's top 3 sector exposures are Finance, Sovereign and Energy. In contrast, SIO's top sector exposures are Sovereign, Finance and Industrials. SDSI is less expensive with a Total Expense Ratio (TER) of 0.32%, versus 0.88% for SIO. SDSI is up 1.56% year-to-date (YTD) with +$143M in YTD flows. SIO performs worse with 0.09% YTD performance, and +$74M in YTD flows. Run a side-by-side ETF comparison of SDSI and SIO 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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SDSI vs SIO performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/11/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | SDSI SIO | -0.28%-0.68% | +0.26%-0.66% | +1.56%+0.09% | +2.99%+1.56% | +18.07%+22.10% | n/an/a |
| Flows | SDSI SIO | +$26M+$19M | +$79M+$41M | +$143M+$74M | +$231M+$97M | +$264M+$197M | -- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | SDSI SIO | +1.28%+3.32% | +1.23%+3.04% | +1.67%+4.12% | n/an/a |
| Max drawdown | SDSI SIO | -0.56%-1.66% | -1.10%-2.41% | -1.10%-3.38% | n/an/a |
| Max drawdown duration | SDSI SIO | 17d74d | 52d193d | 52d149d | n/an/a |
Trading data
SDSI | SIO | |
Last sale 9/11/2026 at 1:30 PM | $50.74 | $25.12 |
| Previous close 09/10/2026 | $50.81 | $25.10 |
| Consolidated volume 09/10/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
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Main metrics
Last update 9/11/2026 at 1:30 PM
Live
Closed
SDSI | SIO | |
|---|---|---|
| Last price | $50.74 | $25.12 |
| 1D performance | -0.14% | +0.08% |
| AuM | $296.85 M | $293.71 M |
| E/R | 0.32% | 0.88% |
Characteristics
SDSI | SIO | |
|---|---|---|
| Management strategy | Active | Active |
| Provider | American Century Investments | Touchstone Investments |
| Benchmark | - | - |
| N° of holdings | 225 | 150 |
| Asset class | - | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | October 11, 2022 | July 21, 2022 |
| ESG | No | No |
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Exposure
Countries
SDSI
USA
60.95%
Other
39.05%
SIO
USA
70.15%
Other
29.85%
Sectors
SDSI
Finance
29.58%
Sovereign
18.17%
Other
52.26%
SIO
Sovereign
31.42%
Finance
14.79%
Industrials
8.13%
Other
45.66%
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Diversification
SDSI
Total weight of top 15 holdings out of 15
26.83%
SIO
Total weight of top 15 holdings out of 15
34.41%
Top 15 holdings
Data as of July 31, 2026
SDSI
USA, Notes 4% 31oct2029, USD (R-2029)
11.06%
USA, Notes 4.25% 31jul2028, USD (BE-2028)
6.33%
State Street Institutional US Government Money Market Fund
3.15%
Expand Energy, 5.375% 15mar2030, USD
0.56%
Global Atlantic Fin, 4.4% 15oct2029, USD
0.55%
CMS Energy, 4.75% 1jun2050, USD
0.55%
Standard Industries, 4.75% 15jan2028, USD
0.54%
CCO Holdings, 5% 1feb2028, USD
0.54%
American Airlines, 7.25% 15feb2028, USD
0.53%
Herc Holdings, 7% 15jun2030, USD
0.52%
United Airlines, 4.625% 15apr2029, USD
0.51%
Crown Castle, 4.9% 1sep2029, USD
0.50%
Medline Borrower, 6.25% 1apr2029, USD
0.50%
Swedbank, 7.75% perp., USD
0.50%
Build NYC Resource Corp., 7% 15dec2030, USD (2026C)
0.50%
SIO
USA, Notes 4.125% 15feb2036, USD (B-2036)
5.15%
USA, Notes 4.125% 30jun2028, USD (BD-2028)
4.60%
USA, Bonds 4.75% 15feb2045, USD
4.38%
USA, Notes 3.75% 15apr2028, USD (AM-2028)
4.28%
USA, Bonds 4.75% 15aug2055, USD
3.44%
USA, Bonds 5% 15may2056, USD
2.40%
USA, Notes 3.875% 31mar2031, USD (W-2031)
2.11%
BNY Dreyfus Government Cash Management
1.74%
USA, TIPS 2.375% 15feb2056, USD
1.70%
USA, Notes 4.375% 15may2036, USD (C-2036)
0.86%
USA, Bonds 4.625% 15nov2055, USD
0.80%
General Motors Financial, 3.1% 12jan2032, USD
0.78%
Barclays, 2.894% 24nov2032, USD
0.75%
USA, Bonds 4.75% 15feb2056, USD
0.72%
United Airlines, 4.625% 15apr2029, USD
0.71%
Frequently asked questions about SDSI and SIO
How have the SDSI and SIO ETFs performed in 2026?
As of September 11, 2026, SDSI is up 1.56% year-to-date (YTD), while SIO has returned 0.09%. That puts SDSI better performer ahead so far this year.
Which ETF is attracting more investor money: SDSI or SIO?
Year-to-date, the SDSI ETF saw +$143M in flows, compared to +$74M for SIO.
Which ETF is more volatile: SDSI or SIO?
Over the past year, SDSI had a volatility of 1.23%, while SIO experienced 3.04%.
Which ETF is bigger: SDSI or SIO?
As of September 11, 2026, SDSI holds $296.85 M in assets under management (AUM), while SIO manages $293.71 M.
What sectors do the SDSI and SIO ETFs invest in?
SDSI leans toward sectors like Finance and Sovereign. Meanwhile, SIO focuses on Sovereign, Finance and Industrials.
What are the top holdings of the SDSI ETF and SIO ETF?
SDSI top holdings include USA, Notes 4% 31oct2029, USD (R-2029), USA, Notes 4.25% 31jul2028, USD (BE-2028) and State Street Institutional US Government Money Market Fund. SIO holds in its top three: USA, Notes 4.125% 15feb2036, USD (B-2036), USA, Notes 4.125% 30jun2028, USD (BD-2028) and USA, Bonds 4.75% 15feb2045, USD.
Which ETF is more diversified: SDSI or SIO?
SDSI holds 390 securities with 26.83% of its assets in the top 15. SIO has 220 securities and a top 15 weight of 34.41%.
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