MBBvsPUSHETF Comparison
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iShares MBS ETF (MBB) belongs to the MBS & ABS segment. PGIM Ultra Short Municipal Bond ETF (PUSH) is part of the Municipal Bonds segment. MBB's top 3 sector exposures are Industrials, Non-Corporate and Finance. In contrast, PUSH's top sector exposures are Municipal and Non-Corporate. MBB is less expensive with a Total Expense Ratio (TER) of 0.04%, versus 0.15% for PUSH. MBB is down -1.34% year-to-date (YTD) with +$1.52B in YTD flows. PUSH performs better with 1.74% YTD performance, and +$88M in YTD flows. Run a side-by-side ETF comparison of MBB and PUSH 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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MBB vs PUSH performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/11/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | MBB PUSH | -1.48%-0.05% | -2.24%+0.38% | -1.34%+1.74% | -0.12%+2.54% | +13.76%n/a | -0.62%n/a |
| Flows | MBB PUSH | +$655M+$20M | +$892M+$36M | +$1.52B+$88M | -$888M+$94M | +$12.43B- | +$17.94B- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | MBB PUSH | +4.76%+0.64% | +4.22%+0.53% | +5.85%n/a | +6.60%n/a |
| Max drawdown | MBB PUSH | -2.79%-0.27% | -3.37%-0.35% | -5.44%n/a | -17.29%n/a |
| Max drawdown duration | MBB PUSH | 74d11d | 194d45d | 75dn/a | 1492dn/a |
Trading data
MBB | PUSH | |
Last sale 9/11/2026 at 1:30 PM | $91.38 | $50.18 |
| Previous close 09/10/2026 | $91.48 | $50.16 |
| Consolidated volume 09/10/2026 | ||
| 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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PUSH
is actively managed and doesn’t replicate an indexMBB | PUSH | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 9/11/2026 at 1:30 PM
Live
Closed
MBB | PUSH | |
|---|---|---|
| Last price | $91.38 | $50.18 |
| 1D performance | -0.11% | +0.04% |
| AuM | $38.92 B | $134.18 M |
| E/R | 0.04% | 0.15% |
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Exposure
Countries
MBB
USA
29.07%
Other
70.93%
PUSH
USA
25.92%
Other
74.08%
Sectors
MBB
Industrials
20.93%
Non-Corporate
7.91%
Other
71.16%
PUSH
Municipal
25.76%
Other
74.24%
Diversification
MBB
Total weight of top 15 holdings out of 15
16.01%
PUSH
Total weight of top 15 holdings out of 15
18.17%
Top 15 holdings
Data as of July 31, 2026
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%
PUSH
US60528ACC62
2.29%
US92162PAM77
1.51%
Michigan Finance Authority, 5% 1dec2037, USD (2017A)
1.51%
US04062PCC32
1.49%
Main Street Natural Gas Inc., 4% 1jul2052, USD (2021A)
1.28%
Kentucky Public Energy Authority, 4% 1feb2050, USD
1.16%
US880443JF46
1.13%
US60528ACF93
1.05%
Chandler Industrial Development Authority, 4% 1jun2049, USD (2019)
1.05%
Texas Municipal Gas Acquisition and Supply Corp., 5.5% 1jan2054, USD (2023A)
1.03%
Southeast Energy Authority, 5.25% 1jan2054, USD (2023A)
0.98%
US57584XEF42
0.95%
Main Street Natural Gas Inc., 4% 1mar2050, USD
0.92%
US13034AD230
0.92%
US781741AV51
0.91%
Frequently asked questions about MBB and PUSH
How have the MBB and PUSH ETFs performed in 2026?
As of September 11, 2026, MBB is down -1.34% year-to-date (YTD), while PUSH has returned 1.74%. That puts PUSH better performer ahead so far this year.
Which ETF is attracting more investor money: MBB or PUSH?
Year-to-date, the MBB ETF saw +$1.52B in flows, compared to +$88M for PUSH.
Which ETF is more volatile: MBB or PUSH?
Over the past year, MBB had a volatility of 4.22%, while PUSH experienced 0.53%.
Which ETF is bigger: MBB or PUSH?
As of September 11, 2026, MBB holds $38.92 B in assets under management (AUM), while PUSH manages $134.18 M.
What sectors do the MBB and PUSH ETFs invest in?
MBB leans toward sectors like Industrials and Non-Corporate. Meanwhile, PUSH focuses on Municipal.
What are the top holdings of the MBB ETF and PUSH ETF?
MBB top holdings include BlackRock Cash Funds - Institutional, FR SD8146, 2% 1may2051, USD (ABS) and US21H0526861. PUSH holds in its top three: US60528ACC62, US92162PAM77 and Michigan Finance Authority, 5% 1dec2037, USD (2017A).
Which ETF is more diversified: MBB or PUSH?
MBB holds 9388 securities with 16.01% of its assets in the top 15. PUSH has 284 securities and a top 15 weight of 18.17%.
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