Data as of Oct 28, 2026.

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CORB vs SYSB: Differences, Returns & Fees

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CORB's duration was 6.2 years on Aug 31, 2026 and SYSB's 5.9 on Jul 31, 2026; SYSB charges 0.25% to CORB's 0.28%.

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Net assets on Oct 27, 2026: $1.2bn for AB Core Bond ETF and $1.4bn for iShares Systematic Bond ETF.

At a glance
−1.5%
CORB total return, since launch, Nov 10, 2025
−1.9%
SYSB total return, 1 year
0.28%
CORB expense ratio
0.25%
SYSB expense ratio

Pair scorecard

SYSB costs 0.03 points a year less; SYSB is 1.2 times larger.

CORB vs SYSB: Differences, Returns & Fees
MeasureCORBSYSB
Return
Total return, 1 yearnot published−1.9%
Drawdown
Below its high3.5%, high on Feb 27, 20263.3%, high on Feb 27, 2026
Benchmark
What it tracksNo index, actively managedBlackRock Universal Systematic Bond Index
Cost and size
Expense ratio0.28%0.25%
Net assets, as of Oct 27, 2026$1.2bn$1.4bn
Holdings
Holdings in common3%

Holdings in common uses holdings dated Jul 31, 2026 and Aug 31, 2026. Method

What they share

3%

By the books each fund has filed, CORB and SYSB hold 3% of their money in the same securities at the same weight. Holdings dated Jul 31, 2026 and Aug 31, 2026.

0 half 100%

half

3% in common

Positions both hold · largest shared weight first CORB SYSB
U.S. Treasury Bonds, due Aug 15, 2051 0.64% 1.26%
U.S. Treasury Notes, due Nov 30, 2028 0.54% 0.72%
U.S. Treasury Bonds, due Feb 15, 2052 0.25% 1.66%
Delta Air Lines Inc, due Jul 10, 2030 0.23% 0.16%
EQT Corp, due Jan 15, 2031 0.22% 0.15%
U.S. Treasury Bonds, due Aug 15, 2046 0.13% 1.52%
Salesforce Inc, due Mar 15, 2033 0.10% 0.15%
Salesforce Inc, due Sep 15, 2031 0.10% 0.15%
Tapestry Inc, due Mar 11, 2030 0.19% 0.10%
Cheniere Energy Partners LP, due Mar 1, 2031 0.09% 0.14%
Diamondback Energy Inc, due Mar 15, 2033 0.09% 0.11%
GLP Capital LP / GLP Financing II Inc, due Jan 15, 2032 0.08% 0.10%
Only in one fund ↓
Only in CORB
U.S. Treasury Notes, due Oct 31, 2031 2.86%
U.S. Treasury Bills, due Nov 19, 2026 2.63%
Uniform Mortgage-Backed Security, TBA, due Sep 1, 2056 2.59%
U.S. Treasury Notes, due Nov 15, 2028 2.57%
U.S. Treasury Notes, due Aug 31, 2031 2.54%
Uniform Mortgage-Backed Security, TBA, due Sep 1, 2056 2.33%
U.S. Treasury Notes, due Sep 30, 2031 2.29%
U.S. Treasury Bonds, due Nov 15, 2055 2.23%
Only in SYSB
U.S. Treasury Bonds, due Aug 15, 2040 3.17%
U.S. Treasury Bonds, due Aug 15, 2047 3.08%
U.S. Treasury Notes, due May 15, 2035 2.34%
U.S. Treasury Notes, due Aug 15, 2035 2.16%
U.S. Treasury Notes, due May 31, 2033 2.11%
U.S. Treasury Bonds, due Aug 15, 2052 1.68%
U.S. Treasury Notes, due May 15, 2033 1.60%
U.S. Treasury Bonds, due Nov 15, 2051 1.54%
Check overlap with more funds →

Side by side

CORB AB Core Bond ETF SYSB iShares Systematic Bond ETF
Where it sits Bond ETF Bond ETF
What it is Actively managed Tracks an index
Total return, 1 year −1.5% (since launch, Nov 10, 2025) −1.9%
Its benchmark over the same days −0.7% (AGG) (since launch, Nov 10, 2025) −1.2% (IUSB)
Gap to its benchmark −0.8 pts vs AGG (since launch, Nov 10, 2025) −0.7 pts vs IUSB
Expense ratio 0.28% 0.25%
Holdings 718 853
Net assets, as of Oct 27, 2026 $1.2bn $1.4bn

CORB and SYSB on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.

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About each fund
CORB

CORB is actively managed and tracks no index. The prospectus expense ratio is 0.28% a year. It sat 3.5% below its high of Feb 27, 2026 on Oct 28, 2026.

SYSB

SYSB tracks an index. Over the year to Oct 28, 2026 it returned −1.9% with distributions reinvested, against −1.2% for its benchmark, the Bloomberg U.S. Universal Index. The prospectus expense ratio is 0.25% a year. It sat 3.3% below its high of Feb 27, 2026 on Oct 28, 2026.

Questions people ask

Which is cheaper, CORB or SYSB?
SYSB is cheaper, by 0.03 percentage points a year. That is about $3 on $10,000 held for a year. Fees come from each fund's prospectus.
Other comparisons
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ETFIQ, CORB against SYSB, data as of Oct 28, 2026. https://etfiq.com/compare/any/corb-vs-sysb

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