SDFIvsCORBETF Comparison
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AB Short Duration Income ETF (SDFI) belongs to the Intl IG Bonds segment. AB Core Bond ETF (CORB) is part of the US Aggregate Bonds segment. Both ETFs have the same top 3 sector exposures: Sovereign, Finance and Industrials. SDFI is more expensive with a Total Expense Ratio (TER) of 0.3%, versus 0.28% for CORB. SDFI is up 1.46% year-to-date (YTD) with +$41M in YTD flows. CORB performs worse with -0.52% YTD performance, and +$297M in YTD flows. Run a side-by-side ETF comparison of SDFI and CORB 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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SDFI vs CORB performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 08/28/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | SDFI CORB | +0.24%-0.17% | +0.47%-0.58% | +1.46%-0.52% | +2.95%n/a | n/an/a | n/an/a |
| Flows | SDFI CORB | +$7M+$50M | +$19M+$125M | +$41M+$297M | +$64M- | -- | -- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | SDFI CORB | +1.64%+3.97% | +1.51%n/a | n/an/a | n/an/a |
| Max drawdown | SDFI CORB | -0.39%-1.79% | -1.13%n/a | n/an/a | n/an/a |
| Max drawdown duration | SDFI CORB | 19d60d | 46dn/a | n/an/a | n/an/a |
Trading data
SDFI | CORB | |
Last sale 8/31/2026 at 1:30 PM | $35.38 | $29.04 |
| Previous close 08/28/2026 | $35.39 | $29.06 |
| Consolidated volume 08/28/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
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Main metrics
Last update 8/31/2026 at 1:30 PM
Live
Closed
SDFI | CORB | |
|---|---|---|
| Last price | $35.38 | $29.04 |
| 1D performance | -0.03% | -0.07% |
| AuM | $192.30 M | $1.15 B |
| E/R | 0.3% | 0.28% |
Characteristics
SDFI | CORB | |
|---|---|---|
| Management strategy | Active | Active |
| Provider | AllianceBernstein | AllianceBernstein |
| Benchmark | - | - |
| N° of holdings | 386 | 506 |
| Asset class | - | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | June 10, 2024 | November 7, 2025 |
| ESG | No | No |
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Exposure
Countries
SDFI
USA
54.3%
Other
45.7%
CORB
USA
55.52%
Other
44.48%
Sectors
SDFI
Sovereign
18.68%
Finance
16.14%
Other
65.18%
CORB
Sovereign
35.5%
Finance
8.73%
Other
55.77%
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Diversification
SDFI
Total weight of top 15 holdings out of 15
18.04%
CORB
Total weight of top 15 holdings out of 15
24.06%
Top 15 holdings
Data as of July 31, 2026
SDFI
USA, TIPS 2.125% 15apr2029, USD (X-2029)
3.17%
USA, Notes 4.125% 30jun2028, USD (BD-2028)
2.86%
USA, Notes 3.875% 31jul2030, USD (AB-2030)
1.65%
USA, Notes 4% 31may2028, USD (BC-2028)
1.62%
USA, Notes 3.625% 31aug2030, USD (AC-2030)
1.29%
USA, Notes 4% 28feb2030, USD (H-2030)
1.13%
USA, Notes 4.25% 31jan2030, USD (U-2030)
1.06%
USA, Notes 4.125% 15feb2036, USD (B-2036)
0.99%
USA, Notes 3.75% 31oct2032, USD (R-2032)
0.79%
USA, Notes 3.875% 30sep2032, USD (Q-2032)
0.78%
USA, Notes 3.75% 30nov2032, USD (S-2032)
0.71%
US01F0526800
0.58%
USA, Notes 3.625% 31dec2030, USD (AH-2030)
0.51%
USA, Notes 3.5% 31jan2028, USD (U-2028)
0.50%
Athene Global Funding, 5.133% 1jun2029, USD (2026-4)
0.42%
CORB
USA, Notes 4.125% 31oct2031, USD (R-2031)
2.39%
USA, Notes 3.125% 15nov2028, USD (F-2028)
2.14%
USA, Bonds 4.625% 15nov2055, USD
1.89%
US01F0206874
1.86%
USA, Notes 3.875% 31mar2031, USD (W-2031)
1.83%
USA, Notes 3.625% 30sep2030, USD (AD-2030)
1.72%
USA, Notes 3.75% 31aug2031, USD (P-2031)
1.68%
USA, Notes 3.625% 30sep2031, USD (Q-2031)
1.65%
US21H0226892
1.50%
USA, Notes 4.5% 15nov2033, USD (F-2033)
1.29%
USA, Notes 4.625% 30sep2028, USD (AD-2028)
1.26%
US21H0506806
1.23%
USA, Notes 4.25% 28feb2029, USD (V-2029)
1.23%
USA, TIPS 1.375% 15jul2033, USD (D-2033)
1.20%
US01F0526800
1.18%
Frequently asked questions about SDFI and CORB
How have the SDFI and CORB ETFs performed in 2026?
As of August 28, 2026, SDFI is up 1.46% year-to-date (YTD), while CORB has lost -0.52%. That puts SDFI better performer ahead so far this year.
Which ETF is attracting more investor money: SDFI or CORB?
Year-to-date, the SDFI ETF saw +$41M in flows, compared to +$297M for CORB.
Which ETF is bigger: SDFI or CORB?
As of August 28, 2026, SDFI holds $192.30 M in assets under management (AUM), while CORB manages $1.15 B.
What sectors do the SDFI and CORB ETFs invest in?
SDFI leans toward sectors like Sovereign and Finance. Meanwhile, CORB focuses on Sovereign and Finance.
What are the top holdings of the SDFI ETF and CORB ETF?
SDFI top holdings include USA, TIPS 2.125% 15apr2029, USD (X-2029), USA, Notes 4.125% 30jun2028, USD (BD-2028) and USA, Notes 3.875% 31jul2030, USD (AB-2030). CORB holds in its top three: USA, Notes 4.125% 31oct2031, USD (R-2031), USA, Notes 3.125% 15nov2028, USD (F-2028) and USA, Bonds 4.625% 15nov2055, USD.
Which ETF is more diversified: SDFI or CORB?
SDFI holds 564 securities with 18.04% of its assets in the top 15. CORB has 721 securities and a top 15 weight of 24.06%.
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