SCUSvsSPMBETF Comparison
VS
ETF 2
SPMB
State Street State Street SPDR Portfolio Mortgage Backed Bond ETF
This fund is part of
MBS & ABS
-0.16%
Schwab Ultra-Short Income ETF (SCUS) belongs to the Money Market Bonds segment. State Street State Street SPDR Portfolio Mortgage Backed Bond ETF (SPMB) is part of the MBS & ABS segment. SCUS's top 3 sector exposures are Finance, Technology and Energy. In contrast, SPMB's top sector exposures are Industrials, Finance and Government Agencies. SCUS is more expensive with a Total Expense Ratio (TER) of 0.14%, versus 0.04% for SPMB. SCUS is up 2.71% year-to-date (YTD) with +$81M in YTD flows. SPMB performs worse with -1.06% YTD performance, and +$609M in YTD flows. Run a side-by-side ETF comparison of SCUS and SPMB 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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SCUS vs SPMB performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/28/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | SCUS SPMB | +0.45%+2.09% | +0.80%-1.45% | +2.71%-1.06% | +3.43%-1.13% | n/a+19.19% | n/a+0.25% |
| Flows | SCUS SPMB | +$3M+$35M | +$23M+$152M | +$81M+$609M | +$111M+$795M | -+$2.47B | -+$3.60B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | SCUS SPMB | +0.42%+5.97% | +0.38%+4.74% | n/a+5.73% | n/a+6.79% |
| Max drawdown | SCUS SPMB | -0.11%-4.41% | -0.11%-5.57% | n/a-5.57% | n/a-17.04% |
| Max drawdown duration | SCUS SPMB | 22d64d | 22d241d | n/a241d | n/a1436d |
Trading data
SCUS | SPMB | |
Last sale 10/29/2026 at 3:17 PM | $25.11 | $21.60 |
| Previous close 10/28/2026 | $25.11 | $21.55 |
| Consolidated volume 10/28/2026 | ||
| 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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SCUS
is actively managed and doesn’t replicate an indexSCUS | SPMB | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 10/29/2026 at 3:17 PM
Live
Closed
SCUS | SPMB | |
|---|---|---|
| Last price | $25.11 | $21.60 |
| 1D performance | +0.02% | +0.21% |
| AuM | $263.64 M | $6.97 B |
| E/R | 0.14% | 0.04% |
Characteristics
SCUS | SPMB | |
|---|---|---|
| Management strategy | Active | Passive |
| Provider | Schwab ETFs | State Street Investment Management |
| Benchmark | - | Bloomberg U.S. MBS Index |
| N° of holdings | 79 | 566 |
| Asset class | - | Bonds |
| Trailing 12m distribution yield | Join | Join |
| Inception date | August 13, 2024 | January 15, 2009 |
| ESG | No | No |
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Exposure
Countries
SCUS
USA
32.92%
Other
67.08%
SPMB
USA
32.14%
Other
67.86%
Sectors
SCUS
Finance
20.43%
Other
79.57%
SPMB
Industrials
31.8%
Other
68.2%
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Diversification
SCUS
Total weight of top 15 holdings out of 15
32.08%
SPMB
Total weight of top 15 holdings out of 15
9.79%
Top 15 holdings
Data as of August 31, 2026
SCUS
US83369CVL52
2.96%
US63906FRM31
2.38%
US20632LHT70
2.22%
US65557LFD01
2.21%
US05971MHE84
2.21%
US45687UP106
2.18%
US55607LQ157
2.17%
Salesforce, 4.65% 15mar2029, USD
2.12%
U.S. Bancorp, 3.15% 27apr2027, USD (X)
2.06%
US90351XQR79
2.03%
Simon Property Group L.P., 1.375% 15jan2027, USD
2.01%
US40446MVD81
1.99%
US05593DMU45
1.94%
US22536XBR44
1.85%
US22536WTD82
1.75%
SPMB
US01F0526982
1.22%
US3142J6C840
1.13%
US01F0506927
0.95%
FN MA4547, 2% 1feb2052, USD (ABS)
0.76%
US3142J6BK85
0.73%
FR SD8212, 2.5% 1may2052, USD (ABS)
0.59%
US01F0606917
0.58%
US21H0526945
0.53%
US3132DWMY65
0.53%
G2 MB0424, 5.5% 20jun2055, USD (ABS)
0.52%
FN MA4701, 4.5% 1aug2052, USD (ABS)
0.49%
FN FA0608, 5.5% 1feb2055, USD (ABS)
0.47%
FN MA4465, 2% 1nov2051, USD (ABS)
0.45%
FR SD8193, 2% 1feb2052, USD (ABS)
0.43%
FN FS2040, 2% 1feb2052, USD (ABS)
0.43%
Frequently asked questions about SCUS and SPMB
How have the SCUS and SPMB ETFs performed in 2026?
As of October 28, 2026, SCUS is up 2.71% year-to-date (YTD), while SPMB has lost -1.06%. That puts SCUS better performer ahead so far this year.
Which ETF is attracting more investor money: SCUS or SPMB?
Year-to-date, the SCUS ETF saw +$81M in flows, compared to +$609M for SPMB.
Which ETF is more volatile: SCUS or SPMB?
Over the past year, SCUS had a volatility of 0.38%, while SPMB experienced 4.74%.
Which ETF is bigger: SCUS or SPMB?
As of October 28, 2026, SCUS holds $263.64 M in assets under management (AUM), while SPMB manages $6.97 B.
What sectors do the SCUS and SPMB ETFs invest in?
SCUS leans toward sectors like Finance. Meanwhile, SPMB focuses on Industrials.
What are the top holdings of the SCUS ETF and SPMB ETF?
SCUS top holdings include US83369CVL52, US63906FRM31 and US20632LHT70. SPMB holds in its top three: US01F0526982, US3142J6C840 and US01F0506927.
Which ETF is more diversified: SCUS or SPMB?
SCUS holds 139 securities with 32.08% of its assets in the top 15. SPMB has 2738 securities and a top 15 weight of 9.79%.
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Latest news about SCUS & SPMB
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