SIFIvsSPBOETF Comparison
VS
ETF 2
SPBO
State Street SPDR Portfolio Corporate Bond ETF
This fund is part of
US Corporate IG Bonds
+0.03%
Harbor Scientific Alpha Income ETF (SIFI) belongs to the Intl Aggregate Bonds segment. State Street SPDR Portfolio Corporate Bond ETF (SPBO) is part of the US Corporate IG Bonds segment. SIFI's top 3 sector exposures are Finance, Energy and Technology. In contrast, SPBO's top sector exposures are Finance, Utilities and Technology. SIFI is more expensive with a Total Expense Ratio (TER) of 0.5%, versus 0.03% for SPBO. SIFI is up 0.32% year-to-date (YTD) with -$9M in YTD flows. SPBO performs worse with -1.61% YTD performance, and +$426M in YTD flows. Run a side-by-side ETF comparison of SIFI and SPBO 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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SIFI vs SPBO performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/16/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | SIFI SPBO | -0.38%-0.30% | -1.25%-1.96% | +0.32%-1.61% | +1.35%-1.88% | +22.84%+18.92% | +7.16%-0.36% |
| Flows | SIFI SPBO | --$38M | -$10M+$92M | -$9M+$426M | -$10M+$490M | -$9M+$1.19B | -$6M+$1.82B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | SIFI SPBO | +3.07%+4.67% | +2.89%+4.25% | +3.53%+5.35% | +4.00%+6.63% |
| Max drawdown | SIFI SPBO | -2.49%-3.36% | -2.68%-4.52% | -3.45%-4.67% | -15.93%-21.96% |
| Max drawdown duration | SIFI SPBO | 52d89d | 103d229d | 87d280d | 1208d1436d |
Trading data
SIFI | SPBO | |
Last sale 10/16/2026 at 1:46 PM | $42.25 | $27.65 |
| Previous close 10/16/2026 | $42.34 | $27.78 |
| Consolidated volume 10/16/2026 | ||
| 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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SIFI
is actively managed and doesn’t replicate an indexSIFI | SPBO | |
|---|---|---|
| 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 1:46 PM
Live
Closed
SIFI | SPBO | |
|---|---|---|
| Last price | $42.25 | $27.65 |
| 1D performance | -0.21% | -0.49% |
| AuM | $23.28 M | $2.12 B |
| E/R | 0.5% | 0.03% |
Characteristics
SIFI | SPBO | |
|---|---|---|
| Management strategy | Active | Passive |
| Provider | Harbor Capital | State Street Investment Management |
| Benchmark | - | Bloomberg U.S. Corporate Bond Index |
| N° of holdings | 157 | 4113 |
| Asset class | - | Bonds |
| Trailing 12m distribution yield | Join | Join |
| Inception date | September 16, 2021 | April 6, 2011 |
| ESG | No | No |
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Exposure
Countries
SIFI
USA
68.21%
Other
31.79%
SPBO
USA
82.26%
Other
17.74%
Sectors
SIFI
Finance
14.35%
Energy
13.62%
Technology
12.16%
Industrials
7.73%
Other
52.13%
SPBO
Finance
34.65%
Utilities
9.9%
Technology
9.66%
Healthcare
8.67%
Other
37.12%
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Diversification
SIFI
Total weight of top 15 holdings out of 15
13.71%
SPBO
Total weight of top 15 holdings out of 15
2.4%
Top 15 holdings
Data as of August 31, 2026
SIFI
DuPont de Nemours, 4.8% 15may2033, USD
1.21%
Naspers, 3.061% 13jul2031, USD
1.13%
The Home Depot, 3.25% 15apr2032, USD
1.03%
EnQuest, 9.875% 30apr2031, USD
0.89%
Park-Ohio Industries, 8.5% 1aug2030, USD
0.89%
CVR Energy, 7.875% 15feb2034, USD
0.87%
Lindblad Expeditions, 7% 15sep2030, USD
0.87%
Open Text Corporation, 6.9% 1dec2027, USD
0.86%
KeySpan Gas East, 5.994% 6mar2033, USD
0.86%
Nordson, 5.8% 15sep2033, USD
0.86%
Centene, 2.5% 1mar2031, USD
0.85%
Imperial Brands, 5.5% 1feb2030, USD
0.85%
BAE Systems, 5.125% 26mar2029, USD
0.85%
VICI Properties, 3.75% 15feb2027, USD
0.85%
California Resources, 7.25% 15jan2035, USD
0.84%
SPBO
Citigroup, 4.91% 24may2033, USD
0.20%
Bank of America Corporation, 7.75% 14may2038, USD
0.20%
Bank of America Corporation, 3.419% 20dec2028, USD
0.20%
JP Morgan, 5.576% 23jul2036, USD
0.18%
British American Tobacco, 7.079% 2aug2043, USD
0.18%
Anheuser-Busch, 4.9% 1feb2046, USD
0.16%
Meta Platforms, 4.6% 15nov2032, USD
0.16%
Bank of America Corporation, 3.97% 5mar2029, USD (M)
0.15%
Amazon.com, 4% 13mar2029, USD
0.15%
Goldman Sachs, 4.411% 23apr2039, USD
0.14%
CVS Health, 6% 1jun2044, USD
0.14%
Verizon Communications, 2.1% 22mar2028, USD
0.14%
T-Mobile USA, 3.875% 15apr2030, USD
0.14%
AbbVie, 4.8% 15mar2029, USD
0.13%
Goldman Sachs, 3.814% 23apr2029, USD
0.13%
Frequently asked questions about SIFI and SPBO
How have the SIFI and SPBO ETFs performed in 2026?
As of October 16, 2026, SIFI is up 0.32% year-to-date (YTD), while SPBO has lost -1.61%. That puts SIFI better performer ahead so far this year.
Which ETF is attracting more investor money: SIFI or SPBO?
Year-to-date, the SIFI ETF saw -$9M in flows, compared to +$426M for SPBO.
Which ETF is more volatile: SIFI or SPBO?
Over the past year, SIFI had a volatility of 2.89%, while SPBO experienced 4.25%.
Which ETF is bigger: SIFI or SPBO?
As of October 16, 2026, SIFI holds $23.28 M in assets under management (AUM), while SPBO manages $2.12 B.
What sectors do the SIFI and SPBO ETFs invest in?
SIFI leans toward sectors like Finance, Energy and Technology. Meanwhile, SPBO focuses on Finance, Utilities and Technology.
What are the top holdings of the SIFI ETF and SPBO ETF?
SIFI top holdings include DuPont de Nemours, 4.8% 15may2033, USD, Naspers, 3.061% 13jul2031, USD and The Home Depot, 3.25% 15apr2032, USD. SPBO holds in its top three: Citigroup, 4.91% 24may2033, USD, Bank of America Corporation, 7.75% 14may2038, USD and Bank of America Corporation, 3.419% 20dec2028, USD.
Which ETF is more diversified: SIFI or SPBO?
SIFI holds 157 securities with 13.71% of its assets in the top 15. SPBO has 4241 securities and a top 15 weight of 2.4%.
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