TSECvsMBBETF Comparison
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Touchstone Securitized Income ETF (TSEC) belongs to the US Aggregate Bonds segment. iShares MBS ETF (MBB) is part of the MBS & ABS segment. TSEC's top 3 sector exposures are Non-Corporate, Industrials and Sovereign. In contrast, MBB's top sector exposures are Industrials, Non-Corporate and Finance. TSEC is more expensive with a Total Expense Ratio (TER) of 0.69%, versus 0.04% for MBB. TSEC is up 1.06% year-to-date (YTD) with +$59M in YTD flows. MBB performs worse with -1.7% YTD performance, and -$1.54B in YTD flows. Run a side-by-side ETF comparison of TSEC 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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TSEC vs MBB performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/14/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | TSEC MBB | -0.44%-0.27% | -0.54%-2.36% | +1.06%-1.70% | +2.33%-0.99% | +20.61%+17.12% | n/a-0.37% |
| Flows | TSEC MBB | +$9M-$3.07B | +$18M-$2.41B | +$59M-$1.54B | +$70M-$4.81B | +$158M+$9.21B | -+$14.30B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | TSEC MBB | +1.75%+5.70% | +2.08%+4.62% | +2.19%+5.73% | n/a+6.66% |
| Max drawdown | TSEC MBB | -1.33%-4.27% | -1.45%-5.38% | -1.45%-5.38% | n/a-16.94% |
| Max drawdown duration | TSEC MBB | 50d51d | 101d228d | 101d228d | n/a1405d |
Trading data
TSEC | MBB | |
Last sale 10/16/2026 at 1:30 PM | $25.17 | $90.52 |
| Previous close 10/15/2026 | $25.14 | $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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TSEC
is actively managed and doesn’t replicate an indexTSEC | 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
TSEC | MBB | |
|---|---|---|
| Last price | $25.17 | $90.52 |
| 1D performance | +0.10% | -0.08% |
| AuM | $175.21 M | $35.54 B |
| E/R | 0.69% | 0.04% |
Characteristics
TSEC | MBB | |
|---|---|---|
| Management strategy | Active | Passive |
| Provider | Touchstone Investments | iShares |
| Benchmark | - | Bloomberg U.S. MBS Index |
| N° of holdings | 13 | 1237 |
| Asset class | - | Bonds |
| Trailing 12m distribution yield | Join | Join |
| Inception date | July 19, 2023 | March 13, 2007 |
| ESG | No | No |
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Exposure
Countries
TSEC
USA
19.97%
Other
80.03%
MBB
USA
28.44%
Other
71.56%
Sectors
TSEC
Non-Corporate
12.42%
Other
87.58%
MBB
Industrials
20.61%
Non-Corporate
7.6%
Other
71.79%
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Diversification
TSEC
Total weight of top 15 holdings out of 15
33.65%
MBB
Total weight of top 15 holdings out of 15
16.82%
Top 15 holdings
Data as of August 31, 2026
TSEC
BNY Dreyfus Government Cash Management
12.42%
US31427RMK31
2.40%
US69145VAB80
1.83%
US26209XAH44
1.75%
USA, Notes 4.125% 15feb2036, USD (B-2036)
1.71%
US108056AG71
1.56%
US38348UAB08
1.52%
US46651YBY59
1.32%
US12515BAH15
1.32%
US48269AAJ16
1.32%
US12652XAA19
1.31%
US12803VAD73
1.31%
US74167XAA90
1.30%
US17291CBV63
1.29%
US05609JAA07
1.28%
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 TSEC and MBB
How have the TSEC and MBB ETFs performed in 2026?
As of October 14, 2026, TSEC is up 1.06% year-to-date (YTD), while MBB has lost -1.7%. That puts TSEC better performer ahead so far this year.
Which ETF is attracting more investor money: TSEC or MBB?
Year-to-date, the TSEC ETF saw +$59M in flows, compared to -$1.54B for MBB.
Which ETF is more volatile: TSEC or MBB?
Over the past year, TSEC had a volatility of 2.08%, while MBB experienced 4.62%.
Which ETF is bigger: TSEC or MBB?
As of October 14, 2026, TSEC holds $175.21 M in assets under management (AUM), while MBB manages $35.54 B.
What sectors do the TSEC and MBB ETFs invest in?
TSEC leans toward sectors like Non-Corporate. Meanwhile, MBB focuses on Industrials and Non-Corporate.
What are the top holdings of the TSEC ETF and MBB ETF?
TSEC top holdings include BNY Dreyfus Government Cash Management, US31427RMK31 and US69145VAB80. MBB holds in its top three: BlackRock Cash Funds - Institutional, US01F0526982 and US21H0526945.
Which ETF is more diversified: TSEC or MBB?
TSEC holds 129 securities with 33.65% 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 TSEC & 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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