RDFIvsMBBETF Comparison
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Rareview Dynamic Fixed Income ETF (RDFI) belongs to the Intl Aggregate Bonds segment. iShares MBS ETF (MBB) is part of the MBS & ABS segment. RDFI's top 2 sector exposures are Non-Corporate and Finance. In contrast, MBB's top sector exposures are Industrials, Non-Corporate and Finance. RDFI is more expensive with a Total Expense Ratio (TER) of 4.23%, versus 0.04% for MBB. RDFI is up 2.42% year-to-date (YTD) with +$27M in YTD flows. MBB performs worse with -0.23% YTD performance, and +$1.52B in YTD flows. Run a side-by-side ETF comparison of RDFI 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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RDFI vs MBB performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/01/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | RDFI MBB | -0.16%-0.12% | +0.66%-0.94% | +2.42%-0.23% | +5.14%+2.87% | +33.97%+14.55% | +11.40%+0.57% |
| Flows | RDFI MBB | +$4M+$655M | +$9M+$1.60B | +$27M+$1.52B | +$32M-$888M | +$49M+$12.43B | +$42M+$17.94B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | RDFI MBB | +5.33%+4.65% | +6.86%+4.22% | +7.49%+5.84% | +7.86%+6.59% |
| Max drawdown | RDFI MBB | -1.90%-1.87% | -7.38%-2.92% | -8.30%-5.51% | -24.01%-17.29% |
| Max drawdown duration | RDFI MBB | 48d64d | 183d184d | 73d84d | 1078d1492d |
Trading data
RDFI | MBB | |
Last sale 9/1/2026 at 6:47 PM | $23.19 | $92.42 |
| Previous close 09/01/2026 | $23.33 | $92.41 |
| Consolidated volume 09/01/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of August 31, 2026
1-year trailing difference
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RDFI
is actively managed and doesn’t replicate an indexRDFI | 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 9/1/2026 at 6:47 PM
Live
Closed
RDFI | MBB | |
|---|---|---|
| Last price | $23.19 | $92.42 |
| 1D performance | -0.60% | +0.01% |
| AuM | $87.39 M | $39.36 B |
| E/R | 4.23% | 0.04% |
Characteristics
RDFI | MBB | |
|---|---|---|
| Management strategy | Active | Passive |
| Provider | Rareview Capital | iShares |
| Benchmark | - | Bloomberg U.S. MBS Index |
| N° of holdings | 12 | 1231 |
| Asset class | - | Bonds |
| Trailing 12m distribution yield | Join | Join |
| Inception date | October 21, 2020 | March 13, 2007 |
| ESG | No | No |
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Exposure
Countries
RDFI
USA
30.92%
Other
69.08%
MBB
USA
29.07%
Other
70.93%
Sectors
RDFI
Non-Corporate
28.24%
Other
71.76%
MBB
Industrials
20.93%
Non-Corporate
7.91%
Other
71.16%
Diversification
RDFI
Total weight of top 15 holdings out of 15
63.47%
MBB
Total weight of top 15 holdings out of 15
16.01%
Top 15 holdings
Data as of July 31, 2026
RDFI
US19423L3915
6.19%
US6174771047
6.02%
US0925081004
5.13%
US8801921094
4.92%
abrdn Asia Pacific Income Fund Inc.
4.67%
BlackRock Corporate High Yield Fund, Inc.
4.63%
US1128301041
4.35%
Western Asset Emerging Markets Debt Fund, Inc.
3.98%
US25862D1054
3.92%
Western Asset High Income Opportunity Fund, Inc.
3.90%
US09253N1046
3.78%
US19248C1053
3.67%
US33718W1036
2.88%
US61744H1059
2.77%
KKR Income Opportunities Fund
2.68%
MBB
BlackRock Cash Funds - Institutional
7.91%
FR SD8146, 2% 1may2051, USD (ABS)
1.00%
US21H0526861
0.98%
US01F0506844
0.66%
US21H0506806
0.58%
US01F0526800
0.56%
G2 MB0025, 5% 20nov2054, USD (ABS)
0.53%
G2 MA7648, 2% 20oct2051, USD (ABS)
0.52%
US36179WTX64
0.51%
FN MA4492, 2% 1dec2051, USD (ABS)
0.50%
FR SD8140, 2% 1apr2051, USD (ABS)
0.48%
US21H0426872
0.46%
US21H0606895
0.45%
US36179WJR07
0.44%
FN MA4465, 2% 1nov2051, USD (ABS)
0.43%
Frequently asked questions about RDFI and MBB
How have the RDFI and MBB ETFs performed in 2026?
As of September 1, 2026, RDFI is up 2.42% year-to-date (YTD), while MBB has lost -0.23%. That puts RDFI better performer ahead so far this year.
Which ETF is attracting more investor money: RDFI or MBB?
Year-to-date, the RDFI ETF saw +$27M in flows, compared to +$1.52B for MBB.
Which ETF is more volatile: RDFI or MBB?
Over the past year, RDFI had a volatility of 6.86%, while MBB experienced 4.22%.
Which ETF is bigger: RDFI or MBB?
As of September 1, 2026, RDFI holds $87.39 M in assets under management (AUM), while MBB manages $39.36 B.
What sectors do the RDFI and MBB ETFs invest in?
RDFI leans toward sectors like Non-Corporate. Meanwhile, MBB focuses on Industrials and Non-Corporate.
What are the top holdings of the RDFI ETF and MBB ETF?
RDFI top holdings include US19423L3915, US6174771047 and US0925081004. MBB holds in its top three: BlackRock Cash Funds - Institutional, FR SD8146, 2% 1may2051, USD (ABS) and US21H0526861.
Which ETF is more diversified: RDFI or MBB?
RDFI holds 35 securities with 63.47% of its assets in the top 15. MBB has 9388 securities and a top 15 weight of 16.01%.
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