Which is cheaper, AGG or CORB?

AGG 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.

Data as of Oct 28, 2026.

Across categories

AGG vs CORB: Differences, Returns & Fees

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On Aug 31, 2026 AGG's duration was 5.8 years and CORB's 6.2; AGG charges 0.03% to CORB's 0.28%.

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Net assets on Oct 27, 2026: $139.4bn for iShares Core U.S. Aggregate Bond ETF and $1.2bn for AB Core Bond ETF.

AGG on its own →CORB on its own →

At a glance

−1.4%

AGG total return, 1 year

−1.5%

CORB total return, since launch, Nov 10, 2025

0.03%

AGG expense ratio

0.28%

CORB expense ratio

Pair scorecard

AGG costs 0.25 points a year less; AGG is far larger, $139.4bn against $1.2bn.

AGG vs CORB: Differences, Returns & Fees
Measure	AGG	CORB
Return
Measure	AGG	CORB
Total return, 1 year	−1.4%	not published
Drawdown
Measure	AGG	CORB
Below its high	3.4%, high on Aug 4, 2020	3.5%, high on Feb 27, 2026
Benchmark
Measure	AGG	CORB
What it tracks	Bloomberg U.S. Aggregate Bond Index	No index, actively managed
Cost and size
Measure	AGG	CORB
Expense ratio	0.03%	0.28%
Net assets, as of Oct 27, 2026	$139.4bn	$1.2bn
Holdings
Measure	AGG	CORB
Holdings in common	10%

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

What they share

10%

By the books each fund has filed, AGG and CORB hold 10% of their money in the same securities at the same weight. Holdings dated Aug 31, 2026.

50%

0 half 100%

half

10% in common

Positions both hold · largest shared weight first AGG CORB

U.S. Treasury Notes, due Nov 15, 2033 0.38% 1.55%

U.S. Treasury Notes, due Mar 31, 2031 0.29% 2.19%

U.S. Treasury Notes, due Sep 30, 2030 0.28% 2.06%

U.S. Treasury Notes, due Feb 28, 2029 0.22% 1.47%

U.S. Treasury Notes, due Jun 30, 2029 0.22% 1.06%

U.S. Treasury Notes, due Feb 29, 2028 0.26% 0.21%

U.S. Treasury Bonds, due Nov 15, 2053 0.20% 0.59%

Ginnie Mae, due Sep 1, 2056 0.20% 0.44%

U.S. Treasury Bonds, due Nov 15, 2054 0.19% 0.34%

U.S. Treasury Notes, due Mar 31, 2029 0.19% 0.55%

U.S. Treasury Bonds, due Feb 15, 2054 0.19% 0.38%

U.S. Treasury Bonds, due Nov 15, 2055 0.17% 2.23%

Only in one fund ↓

Only in AGG

U.S. Treasury Notes, due Feb 15, 2035 0.41%

U.S. Treasury Notes, due Nov 15, 2034 0.40%

U.S. Treasury Notes, due Feb 28, 2030 0.40%

U.S. Treasury Notes, due Aug 15, 2034 0.39%

U.S. Treasury Notes, due Feb 15, 2036 0.39%

U.S. Treasury Notes, due May 15, 2035 0.39%

U.S. Treasury Notes, due Aug 15, 2035 0.38%

U.S. Treasury Notes, due Jul 15, 2028 0.38%

Only in CORB

U.S. Treasury Bills, due Nov 19, 2026 2.63%

U.S. Treasury Inflation-Indexed Notes, due Jul 15, 2033 1.45%

Federal Home Loan Banks, due Jun 30, 2028 0.92%

Fannie Mae Pool, due Jul 1, 2051 0.37%

Fannie Mae Pool, due Mar 1, 2052 0.36%

Freddie Mac Pool, due Mar 1, 2052 0.34%

VICI Properties LP / VICI Note Co Inc, due Dec 1, 2029 0.29%

Santos Finance Ltd, due Sep 14, 2027 0.29%

Check overlap with more funds →

Side by side

AGG iShares Core U.S. Aggregate Bond ETF CORB AB Core Bond ETF

Where it sits Bond ETF Bond ETF

Issuer iShares AllianceBernstein

What it is Tracks an index of US aggregate bonds Actively managed

Total return, 1 year −1.4% −1.5% (since launch, Nov 10, 2025)

Its benchmark over the same days −1.3% (SCHZ) −0.7% (AGG) (since launch, Nov 10, 2025)

Gap to its benchmark −0.1 pts vs SCHZ −0.8 pts vs AGG (since launch, Nov 10, 2025)

Expense ratio 0.03% 0.28%

Holdings 13469 718

Net assets, as of Oct 27, 2026 $139.4bn $1.2bn

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

Alert

About each fund

AGG

AGG tracks an index of US aggregate bonds. Over the year to Oct 28, 2026 it returned −1.4% with distributions reinvested, against −1.3% for its benchmark, the Bloomberg U.S. Aggregate Bond Index. The prospectus expense ratio is 0.03% a year. It sat 3.4% below its high of Aug 4, 2020 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, AGG or CORB?: AGG 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

AGG vs BND AGG vs UNIY AGG vs SCCR AGG vs AVIG BND vs CORB BIV vs CORB CORB vs DFCF CORB vs SCHZ

Where to next

AGG on its own →CORB on its own →Hold both: look the portfolio through →Rankings →AGG dividend history →AGG holdings →CORB dividend history →CORB holdings →Standards and sources →

Sources and dates

AGG filings on SEC EDGAR ↗

AGG prospectus with the expense ratio (SEC) ↗

iShares page for AGG ↗

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.

Cite this pageCitation, APA and Markdown

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

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