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Data as of Oct 28, 2026.

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BIV vs CORB: Differences, Returns & Fees

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BIV's duration was 5.9 years on Jun 30, 2026 and CORB's 6.2 on Aug 31, 2026; BIV charges 0.03% to CORB's 0.28%.

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askIQ about BIV and CORB

Net assets: $28.1bn on Sep 30, 2026 for Vanguard Intermediate-Term Bond ETF, and $1.2bn on Oct 27, 2026 for AB Core Bond ETF.

BIV on its own →CORB on its own →
At a glance
−2.2%
BIV total return, 1 year
−1.5%
CORB total return, since launch, Nov 10, 2025
0.03%
BIV expense ratio
0.28%
CORB expense ratio

Pair scorecard

BIV costs 0.25 points a year less.

BIV vs CORB: Differences, Returns & Fees
MeasureBIVCORB
Return
Total return, 1 year−2.2%not published
Drawdown
Below its high3.8%, high on Feb 27, 20263.5%, high on Feb 27, 2026
Benchmark
What it tracksBloomberg U.S. 5-10 Year Government/Credit Float Adjusted IndexNo index, actively managed
Cost and size
Expense ratio0.03%0.28%
Net assets, BIV as of Sep 30, 2026 and CORB as of Oct 27, 2026$28.1bn$1.2bn
Holdings
Holdings in common6%

Holdings in common uses holdings dated Jun 30, 2026 and Aug 31, 2026. Method

What they share

6%

By the books each fund has filed, BIV and CORB hold 6% of their money in the same securities at the same weight. Holdings dated Jun 30, 2026 and Aug 31, 2026.

0 half 100%

half

6% in common

Positions both hold · largest shared weight first BIV CORB
US TREASURY N/B, due Nov 15, 2033 2.10% 1.55%
US TREASURY N/B, due Aug 31, 2031 1.08% 2.54%
US TREASURY N/B, due Oct 31, 2031 0.83% 2.86%
US TREASURY N/B, due Sep 30, 2031 0.79% 2.29%
US TREASURY N/B, due May 15, 2034 2.13% 0.17%
AMAZON.COM INC, due Mar 13, 2036 0.13% 0.09%
SPACE EXPLORATIO, due Jul 15, 2033 0.08% 0.19%
FORD MOTOR CO, due Feb 12, 2032 0.07% 0.10%
UNITED MEXICAN, due Mar 22, 2033 0.07% 0.06%
PHILIP MORRIS IN, due Feb 15, 2033 0.05% 0.15%
SALESFORCE INC, due Mar 15, 2033 0.05% 0.10%
CAPITAL ONE FINL, due Jun 8, 2034 0.05% 0.11%
Only in one fund ↓
Only in BIV
US TREASURY N/B, due Feb 15, 2036 2.14%
US TREASURY N/B, due Feb 15, 2034 2.14%
US TREASURY N/B, due Aug 15, 2031 2.10%
US TREASURY N/B, due Nov 15, 2034 2.08%
US TREASURY N/B, due Feb 15, 2035 2.08%
US TREASURY N/B, due May 15, 2035 2.04%
US TREASURY N/B, due Aug 15, 2035 2.04%
US TREASURY N/B, due Aug 15, 2034 2.02%
Only in CORB
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%
Uniform Mortgage-Backed Security, TBA, due Sep 1, 2056 2.33%
U.S. Treasury Bonds, due Nov 15, 2055 2.23%
U.S. Treasury Notes, due Mar 31, 2031 2.19%
U.S. Treasury Notes, due Sep 30, 2030 2.06%
Ginnie Mae, due Sep 1, 2056 1.91%
Check overlap with more funds →

Side by side

BIV Vanguard Intermediate-Term Bond ETF CORB AB Core Bond ETF
Where it sits Bond ETF Bond ETF
Issuer Vanguard AllianceBernstein
What it is Tracks an index Actively managed
Total return, 1 year −2.2% −1.5% (since launch, Nov 10, 2025)
Its benchmark over the same days not measured −0.7% (AGG) (since launch, Nov 10, 2025)
Gap to its benchmark not measured −0.8 pts vs AGG (since launch, Nov 10, 2025)
Expense ratio 0.03% 0.28%
Holdings 2378 718
Net assets, BIV as of Sep 30, 2026 and CORB as of Oct 27, 2026 $28.1bn $1.2bn

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

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About each fund
BIV

BIV tracks an index. Over the year to Oct 28, 2026 it returned −2.2% with distributions reinvested. The prospectus expense ratio is 0.03% a year. It sat 3.8% below its high of Feb 27, 2026 on Oct 28, 2026.

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.

Questions people ask

Which is cheaper, BIV or CORB?
BIV is cheaper, by 0.25 percentage points a year. That is about $25 on $10,000 held for a year. Fees come from each fund's prospectus.
Other comparisons
BIV vs CGCBBIV vs BNDBIV vs UNIYBIV vs SCCRCORB vs JBNDCGCB vs CORBCORB vs EAGGCORB vs FLCB
Where to next
BIV on its own →CORB on its own →Hold both: look the portfolio through →Rankings →BIV dividend history →BIV holdings →CORB dividend history →CORB holdings →Standards and sources →
Sources and dates
BIV filings on SEC EDGAR ↗
BIV prospectus with the expense ratio (SEC) ↗
Vanguard page for BIV ↗
CORB filings on SEC EDGAR ↗
CORB prospectus with the expense ratio (SEC) ↗

Links are sources, not endorsements. A comparison is not a recommendation.

How this is computed

Overlap adds up the smaller of the two weights for each security both funds hold.

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ETFIQ, BIV against CORB, data as of Oct 28, 2026. https://etfiq.com/compare/any/biv-vs-corb

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Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms.