GNMAvsSMMUETF Comparison
VS
iShares GNMA Bond ETF (GNMA) belongs to the MBS & ABS segment. PIMCO Short Term Municipal Bond Active ETF (SMMU) is part of the Municipal Bonds segment. GNMA's top 2 sector exposures are Industrials and Non-Corporate. In contrast, SMMU's top sector exposures are Municipal, Sovereign and Government Agencies. GNMA is less expensive with a Total Expense Ratio (TER) of 0.11%, versus 0.35% for SMMU. GNMA is up 0.43% year-to-date (YTD) with +$42M in YTD flows. SMMU performs better with 1.32% YTD performance, and +$219M in YTD flows. Run a side-by-side ETF comparison of GNMA and SMMU below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
Find out how industry players manage ETF portfolios. Discover our library of Model portfolios
GNMA vs SMMU performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 08/31/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | GNMA SMMU | +0.49%+0.32% | -0.60%+0.36% | +0.43%+1.32% | +3.12%+2.53% | +13.77%+10.94% | +1.97%+9.93% |
| Flows | GNMA SMMU | +$13M+$35M | +$13M+$85M | +$42M+$219M | +$71M+$246M | +$130M+$639M | -$6M+$655M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | GNMA SMMU | +4.53%+0.72% | +4.03%+0.77% | +5.69%+1.29% | +6.47%+1.27% |
| Max drawdown | GNMA SMMU | -1.84%-0.46% | -2.69%-0.81% | -5.77%-1.70% | -15.75%-4.65% |
| Max drawdown duration | GNMA SMMU | 63d36d | 183d103d | 89d58d | 1452d814d |
Trading data
GNMA | SMMU | |
Last sale 9/1/2026 at 7:42 PM | $43.06 | $50.08 |
| Previous close 08/31/2026 | $43.55 | $50.29 |
| Consolidated volume 08/31/2026 | ||
| 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
Create an account to view replication metrics
Join for free
SMMU
is actively managed and doesn’t replicate an indexGNMA | SMMU | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
Advertisement
Main metrics
Last update 9/1/2026 at 7:42 PM
Live
Closed
GNMA | SMMU | |
|---|---|---|
| Last price | $43.06 | $50.08 |
| 1D performance | -1.13% | -0.42% |
| AuM | $434.77 M | $1.19 B |
| E/R | 0.11% | 0.35% |
Advertisement
Exposure
Countries
GNMA
USA
48.57%
Other
51.43%
SMMU
USA
44.47%
Other
55.53%
Sectors
GNMA
Industrials
38.88%
Non-Corporate
9.69%
Other
51.43%
SMMU
Municipal
28.9%
Sovereign
8.39%
Government Agenci.
7.18%
Other
55.53%
Advertisement
Diversification
GNMA
Total weight of top 15 holdings out of 15
35.18%
SMMU
Total weight of top 15 holdings out of 15
21.52%
Top 15 holdings
Data as of July 31, 2026
GNMA
BlackRock Cash Funds - Treasury
9.69%
G2 MA7192, 2% 20feb2051, USD (ABS)
2.75%
US3618N5XQ77
2.68%
US21H0426872
2.19%
US36179WTX64
2.02%
G2 MA8878, 5% 20may2053, USD (ABS)
1.77%
G2 MB0025, 5% 20nov2054, USD (ABS)
1.73%
US36179WJR07
1.72%
G2 MA8801, 5.5% 20apr2053, USD (ABS)
1.69%
G2 MA7880, 2% 20feb2052, USD (ABS)
1.69%
G2 MA6864, 2% 20sep2050, USD (ABS)
1.52%
US36179WLP13
1.49%
US36179WFG87
1.47%
US3617NWEY42
1.39%
US36179WVT25
1.36%
SMMU
FHLB, 0% 21sep2026, USD (364D)
2.72%
USA, Notes 3.375% 29feb2028, USD (AY-2028)
2.21%
USA, Notes 3.5% 28feb2031, USD (V-2031)
1.76%
US20775DL830
1.72%
FHLB, 0% 4sep2026, USD (365D)
1.66%
USA, Bills 0% 15sep2026, USD (119D)
1.47%
New York Municipal Water Finance Authority, FRN 15jun2050, USD
1.32%
Fort Bend Independent School District, FRN 1aug2055, USD (2025B)
1.22%
Tarrant Cultural Education Facilities Finance Corp., FRN 15nov2063, USD (2026A&B)
1.20%
USA, Notes 4.625% 30apr2031, USD (K-2031)
1.16%
US20775DZL99
1.08%
US593344CB87
1.07%
US20775DTS17
1.02%
US57585BRA88
0.95%
US678604AC33
0.93%
Frequently asked questions about GNMA and SMMU
How have the GNMA and SMMU ETFs performed in 2026?
As of August 31, 2026, GNMA is up 0.43% year-to-date (YTD), while SMMU has returned 1.32%. That puts SMMU better performer ahead so far this year.
Which ETF is attracting more investor money: GNMA or SMMU?
Year-to-date, the GNMA ETF saw +$42M in flows, compared to +$219M for SMMU.
Which ETF is more volatile: GNMA or SMMU?
Over the past year, GNMA had a volatility of 4.03%, while SMMU experienced 0.77%.
Which ETF is bigger: GNMA or SMMU?
As of August 31, 2026, GNMA holds $434.77 M in assets under management (AUM), while SMMU manages $1.19 B.
What sectors do the GNMA and SMMU ETFs invest in?
GNMA leans toward sectors like Industrials and Non-Corporate. Meanwhile, SMMU focuses on Municipal, Sovereign and Government Agencies.
What are the top holdings of the GNMA ETF and SMMU ETF?
GNMA top holdings include BlackRock Cash Funds - Treasury, G2 MA7192, 2% 20feb2051, USD (ABS) and US3618N5XQ77. SMMU holds in its top three: FHLB, 0% 21sep2026, USD (364D), USA, Notes 3.375% 29feb2028, USD (AY-2028) and USA, Notes 3.5% 28feb2031, USD (V-2031).
Which ETF is more diversified: GNMA or SMMU?
GNMA holds 348 securities with 35.18% of its assets in the top 15. SMMU has 341 securities and a top 15 weight of 21.52%.
Advertisement
Advertisement
