JIIIvsMBBETF Comparison
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Janus Henderson Income ETF (JIII) belongs to the Intl Aggregate Bonds segment. iShares MBS ETF (MBB) is part of the MBS & ABS segment. JIII's top 3 sector exposures are Industrials, Finance and Energy. In contrast, MBB's top sector exposures are Industrials, Non-Corporate and Finance. JIII is more expensive with a Total Expense Ratio (TER) of 0.56%, versus 0.04% for MBB. JIII is up 0.12% year-to-date (YTD) with +$163M 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 JIII 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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JIII vs MBB performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/16/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | JIII MBB | -0.65%-0.25% | -1.68%-2.30% | +0.12%-1.78% | +1.20%-1.43% | n/a+17.04% | n/a-0.38% |
| Flows | JIII MBB | +$108M-$3.31B | +$123M-$2.66B | +$163M-$1.79B | +$168M-$5.06B | -+$8.97B | -+$13.89B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | JIII MBB | +3.12%+5.70% | +2.96%+4.61% | n/a+5.73% | n/a+6.66% |
| Max drawdown | JIII MBB | -2.59%-4.27% | -2.59%-5.38% | n/a-5.38% | n/a-16.94% |
| Max drawdown duration | JIII MBB | 52d52d | 52d229d | n/a229d | n/a1405d |
Trading data
JIII | MBB | |
Last sale 10/16/2026 at 1:30 PM | $48.24 | $90.52 |
| Previous close 10/15/2026 | $48.34 | $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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JIII
is actively managed and doesn’t replicate an indexJIII | 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
JIII | MBB | |
|---|---|---|
| Last price | $48.24 | $90.52 |
| 1D performance | -0.22% | -0.08% |
| AuM | $303.19 M | $35.27 B |
| E/R | 0.56% | 0.04% |
Characteristics
JIII | MBB | |
|---|---|---|
| Management strategy | Active | Passive |
| Provider | Janus Henderson Investors | iShares |
| Benchmark | - | Bloomberg U.S. MBS Index |
| N° of holdings | 218 | 1237 |
| Asset class | - | Bonds |
| Trailing 12m distribution yield | Join | Join |
| Inception date | November 12, 2024 | March 13, 2007 |
| ESG | No | No |
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Exposure
Countries
JIII
USA
28.28%
Other
71.72%
MBB
USA
28.44%
Other
71.56%
Sectors
JIII
Industrials
7.75%
Other
92.25%
MBB
Industrials
20.61%
Non-Corporate
7.6%
Other
71.79%
Diversification
JIII
Total weight of top 15 holdings out of 15
28.24%
MBB
Total weight of top 15 holdings out of 15
16.82%
Top 15 holdings
Data as of August 31, 2026
JIII
US01F0526982
5.33%
US01F0506927
3.73%
US01F0426993
3.17%
US01F0606917
2.59%
US47103U7384
2.55%
US01F0326904
2.34%
US01F0306948
2.03%
US01F0406938
1.10%
US47103U7467
1.01%
US21H0326965
0.92%
US35564KPP83
0.84%
US207941AF22
0.74%
US362414AG97
0.67%
US171935AA72
0.62%
US35564KNE54
0.59%
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 JIII and MBB
How have the JIII and MBB ETFs performed in 2026?
As of October 16, 2026, JIII is up 0.12% year-to-date (YTD), while MBB has lost -1.78%. That puts JIII better performer ahead so far this year.
Which ETF is attracting more investor money: JIII or MBB?
Year-to-date, the JIII ETF saw +$163M in flows, compared to -$1.79B for MBB.
Which ETF is more volatile: JIII or MBB?
Over the past year, JIII had a volatility of 2.96%, while MBB experienced 4.61%.
Which ETF is bigger: JIII or MBB?
As of October 16, 2026, JIII holds $303.19 M in assets under management (AUM), while MBB manages $35.27 B.
What sectors do the JIII and MBB ETFs invest in?
JIII leans toward sectors like Industrials. Meanwhile, MBB focuses on Industrials and Non-Corporate.
What are the top holdings of the JIII ETF and MBB ETF?
JIII top holdings include US01F0526982, US01F0506927 and US01F0426993. MBB holds in its top three: BlackRock Cash Funds - Institutional, US01F0526982 and US21H0526945.
Which ETF is more diversified: JIII or MBB?
JIII holds 1233 securities with 28.24% 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 JIII & 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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