TUSIvsMBBETF Comparison
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Touchstone Ultra Short Income ETF (TUSI) belongs to the US Aggregate Bonds segment. iShares MBS ETF (MBB) is part of the MBS & ABS segment. TUSI's top 3 sector exposures are Industrials, Finance and Non-Corporate. In contrast, MBB's top sector exposures are Industrials, Non-Corporate and Finance. TUSI is more expensive with a Total Expense Ratio (TER) of 0.52%, versus 0.04% for MBB. TUSI is up 3.02% year-to-date (YTD) with +$502M in YTD flows. MBB performs worse with -1.78% YTD performance, and -$1.79B in YTD flows. Run a side-by-side ETF comparison of TUSI and MBB 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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TUSI vs MBB performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/15/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | TUSI MBB | +0.31%-0.25% | +0.82%-2.30% | +3.02%-1.78% | +4.07%-1.43% | +17.16%+17.04% | n/a-0.38% |
| Flows | TUSI MBB | +$87M-$3.31B | +$212M-$2.66B | +$502M-$1.79B | +$558M-$5.06B | +$747M+$8.97B | -+$13.89B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | TUSI MBB | +0.49%+5.70% | +0.42%+4.61% | +0.39%+5.73% | n/a+6.66% |
| Max drawdown | TUSI MBB | -0.08%-4.27% | -0.08%-5.38% | -0.16%-5.38% | n/a-16.94% |
| Max drawdown duration | TUSI MBB | 7d52d | 7d229d | 10d229d | n/a1405d |
Trading data
TUSI | MBB | |
Last sale 10/16/2026 at 1:30 PM | $25.28 | $90.52 |
| Previous close 10/15/2026 | $25.26 | $90.59 |
| 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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TUSI
is actively managed and doesn’t replicate an indexTUSI | MBB | |
|---|---|---|
| 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
TUSI | MBB | |
|---|---|---|
| Last price | $25.28 | $90.52 |
| 1D performance | +0.08% | -0.08% |
| AuM | $798.00 M | $35.27 B |
| E/R | 0.52% | 0.04% |
Characteristics
TUSI | MBB | |
|---|---|---|
| Management strategy | Active | Passive |
| Provider | Touchstone Investments | iShares |
| Benchmark | - | Bloomberg U.S. MBS Index |
| N° of holdings | 73 | 1237 |
| Asset class | - | Bonds |
| Trailing 12m distribution yield | Join | Join |
| Inception date | August 4, 2022 | March 13, 2007 |
| ESG | No | No |
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Exposure
Countries
TUSI
USA
25.75%
Other
74.25%
MBB
USA
28.44%
Other
71.56%
Sectors
TUSI
Industrials
9.79%
Finance
9.04%
Other
81.17%
MBB
Industrials
20.61%
Non-Corporate
7.6%
Other
71.79%
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Diversification
TUSI
Total weight of top 15 holdings out of 15
23.53%
MBB
Total weight of top 15 holdings out of 15
16.82%
Top 15 holdings
Data as of August 31, 2026
TUSI
BNY Dreyfus Government Cash Management
3.20%
US12636DJ903
2.90%
US03111CJ124
2.44%
US87513MHX92
1.53%
US30297LAE20
1.50%
US03067BAF67
1.44%
American Tower Trust I, 5.49% 15mar2028, USD (2023-1A, ABS)
1.40%
US70806BAA26
1.22%
US00833BAH15
1.17%
US26209XAC56
1.17%
Wingstop Funding 2020-1A, 2.841% 5dec2050, USD (ABS, A2)
1.17%
US68269MAA27
1.16%
US96042XAG07
1.09%
US06427DAV55
1.07%
US802923AC66
1.05%
MBB
BlackRock Cash Funds - Institutional
7.60%
US01F0526982
1.26%
US21H0526945
1.05%
FR SD8146, 2% 1may2051, USD (ABS)
0.98%
US01F0506927
0.87%
US21H0606978
0.63%
G2 MB0025, 5% 20nov2054, USD (ABS)
0.55%
US21H0506988
0.55%
G2 MA7648, 2% 20oct2051, USD (ABS)
0.51%
US36179WTX64
0.50%
FN MA4492, 2% 1dec2051, USD (ABS)
0.49%
US36179WJR07
0.48%
US21H0426955
0.48%
FR SD8140, 2% 1apr2051, USD (ABS)
0.47%
FN MA4465, 2% 1nov2051, USD (ABS)
0.42%
Frequently asked questions about TUSI and MBB
How have the TUSI and MBB ETFs performed in 2026?
As of October 15, 2026, TUSI is up 3.02% year-to-date (YTD), while MBB has lost -1.78%. That puts TUSI better performer ahead so far this year.
Which ETF is attracting more investor money: TUSI or MBB?
Year-to-date, the TUSI ETF saw +$502M in flows, compared to -$1.79B for MBB.
Which ETF is more volatile: TUSI or MBB?
Over the past year, TUSI had a volatility of 0.42%, while MBB experienced 4.61%.
Which ETF is bigger: TUSI or MBB?
As of October 15, 2026, TUSI holds $798.00 M in assets under management (AUM), while MBB manages $35.27 B.
What sectors do the TUSI and MBB ETFs invest in?
TUSI leans toward sectors like Industrials and Finance. Meanwhile, MBB focuses on Industrials and Non-Corporate.
What are the top holdings of the TUSI ETF and MBB ETF?
TUSI top holdings include BNY Dreyfus Government Cash Management, US12636DJ903 and US03111CJ124. MBB holds in its top three: BlackRock Cash Funds - Institutional, US01F0526982 and US21H0526945.
Which ETF is more diversified: TUSI or MBB?
TUSI holds 242 securities with 23.53% of its assets in the top 15. MBB has 9405 securities and a top 15 weight of 16.82%.
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Latest news about TUSI & MBB
The Weekly ETF Market Monitor (September 28-October 2, 2026)
October 2, 2026
MBB
NYSE x ETF Central ETF Education Series
March 5, 2024
MBB
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