CORB vs SPAB: Grades, Fees and Holdings Compared

AB Core Bond ETF

CORBBNYSE Arca

State Street SPDR Portfolio Aggregate Bond ETF

SPABANYSE Arca

Overlap

No data

Expense ratio

SPAB −0.25pt a year

CORB0.28%SPAB0.03%

Avg volume · 30D

SPAB 26.6×the volume

CORB117KSPAB3.11M

CORB vs SPAB Performance

Dec 31, 2025 – Oct 30, 2026

−1.1%CORB−0.5%SPAB

Expense ratio: CORB 0.28%; SPAB 0.03%, better
Fund size: CORB $1.19B; SPAB $10.4B
1Y total return: CORB No data; SPAB −0.2%
Yield (12M): CORB No data; SPAB 4.20%
Holdings: CORB 724; SPAB 8697
Avg volume (30D): CORB 117K sh; SPAB 3.11M sh, better
NAV per share: CORB $28.70; SPAB $24.78
52W range

ETF.net Grade

Pillar letters and Scores for CORB, SPAB, with each pillar’s weight
Pillar	CORB	SPAB
Cost30% weight	B59	A97Higher
Mission25% weight	A100	A100
Risk15% weight	D26	C47Higher
Tradability15% weight	B61	A90Higher
Holdings10% weight	C42	A76Higher
Durability5% weight	C43	A91Higher

Rank among US Aggregate Bond funds

How we build Categories ›

Same Category. CORB and SPAB are both graded against the same 114 US Aggregate Bond funds, so their Grades compare head to head.

US Aggregate Bond⁠

Category · 114 funds

See all 114 ›

SPAB ranks 2nd and CORB 54th of 114 funds in the US Aggregate Bond Category.

Rank 1AAGGiShares Core U.S. Aggregate Bond ETFScore 87
Rank 2AIUSBiShares Core Universal USD Bond ETFScore 86
Rank 2ASCHZSchwab U.S. Aggregate Bond ETFScore 86
Rank 2ASPABState Street SPDR Portfolio Aggregate Bond ETFScore 86
Rank 5ABNDVanguard Total Bond Market ETFScore 85
Rank 51BVCOBVoya Core Bond ETFScore 63
Rank 54BCORBAB Core Bond ETFScore 62
Rank 54BTOTRT. Rowe Price Total Return ETFScore 62

Our read on each fund

ETF.net Research

CORBBAB Core Bond ETF

SPABAState Street SPDR Portfolio Aggregate Bond ETF

In short

CORB No data

SPAB A 2007-vintage core bond fund priced at 0.03%: roughly 8,500 US investment-grade bonds in one ticket, at the same rock-bottom fee the household names charge for the same index.

Stated mandate

CORB No data

SPAB The fund seeks to track the price and yield performance of the Bloomberg U.S. Aggregate Bond Index before fees and expenses, providing broad exposure to U.S.-dollar-denominated investment-grade bonds.

Why people hold it

CORB No data

SPAB 0.03% a year against a 0.36% median for its peer group, and the same ticket price as AGG, SCHZ and BBAG on the identical index.
Roughly 8,500 dollar-denominated investment-grade bonds in one line item, tracking the Bloomberg U.S. Aggregate Bond Index. Diversification you could not assemble bond by bond.ssga.com
Trades actively and has tracked its index closely, putting it among the stronger implementations in the core-bond group.
Running since 2007, now a multi-billion-dollar fund, and it pays monthly rather than quarterly.

Worth knowing

CORB No data

SPAB Bond prices move opposite yields. When rates rise the index falls and the fund follows it down; a 0.03% fee cannot cushion that.
AGG, SCHZ and BBAG hold the same declared index at the same 0.03%. Picking among them comes down to spreads and platform, not the portfolio.
Investment grade and US dollar only by mandate: high yield and foreign-currency debt sit outside the remit.ssga.com

Full CORB profile⁠

Full SPAB profile⁠

CORB vs SPAB Holdings

How CORB and SPAB differ

No overlap figure

Two bond funds rarely hold the same issues.

Level by level

Countryby domicile95.1%
Asset classFixed Income100%

Sector

No Sector split for SPAB.

Country, concentration and asset class

Country by domicile

Country weights in CORB and SPAB, widest gap first
Country	More in CORBMore in SPAB	CORB	SPAB
United States	CORB +4.6 points	98.8%	94.2%
Canada	SPAB +1.2 points	0.0%	1.2%
Japan	SPAB +0.5 points	0.0%	0.5%
Other countries (26)	SPAB +2.9 points	1.2%	4.1%

Concentration

Weight in the 10 largest Holdings

CORB30.3%
SPAB6.7%

Securities held

CORB716
SPAB8,631

Asset class

CORB: Fixed Income
SPAB: Fixed Income

Holdings

Two bond funds rarely hold the same issues, so this page lists no shared Holdings. CORB holds 716 securities, SPAB 8,631.

All 715 CORB holdings⁠All 8,718 SPAB holdings⁠

How we measure overlap

Each holding counts at its smaller weight in the two funds, summed over the full Holdings. Sector, country and asset class use the same rule on each fund’s split. Cash, FX and derivative lines stay out of the counts. Two bond funds get no overlap figure.

CORB vs SPAB Cost

Overpaying CORB vs SPAB

$5,117

On $10,000 over 30 years. 7% growth a year before fees, expense ratio only.

CORB 0.28%
$5,755
SPAB 0.03%
$638

Amount$10,000

Years30 years

Cost over time

CORB 0.28%
SPAB 0.03%
Overpaying

Year by year

Year	CORB	SPAB	Overpaying
10	$509	$55	$454
20	$1,976	$216	$1,760
30	$5,755	$638	$5,117

Expense ratio

0.28%CORB
0.03%SPAB, cheaper

SPAB0.03%CORB0.28%

0.00%1.04%

Middle half of US Aggregate Bond funds
Median 0.34%

SPAB 2nd cheapest of 114 funds

CORB 46th cheapest of 114 funds

CORB vs SPAB Dividends

Last 12 months to Oct 30, 2026

Yield (12M): CORB No data; SPAB 4.20%
Payout (12M): CORB No data; SPAB $1.04
Last payment: CORB $0.09; SPAB $0.09
Ex-dividend: CORB Oct 1, 2026; SPAB Oct 1, 2026
Paid on: CORB Oct 6, 2026; SPAB Oct 6, 2026
Frequency: CORB Monthly; SPAB Monthly

Distribution history

Per share, 2023 to 2026, same scale for both

CORBMonthly · 11 paymentsAll CORB payments⁠

SPABMonthly · 45 paymentsAll SPAB payments⁠

CORB vs SPAB Risk

Fall from peak · 5 years

This chart needs five years of history for both funds.

Risk facts

VolatilityStd dev, 3 years: CORB No dataSPAB 5.6%
Return per unit of riskSharpe ratio, 3 years: CORB No dataSPAB 0.17
Worst fallMax drawdown, 5 years: CORB No dataSPAB −17.4%
Market sensitivityBeta, 5 years: CORB 0.08SPAB 1.00; Market = 1

CORB and SPAB in the news

All news⁠

Filings Digest
AllianceBernstein's AB US Research Advanced ETF began trading on Nasdaq Monday
Oct 27, 2026SPAB
Best ETFs
Best bond ETFs: LQD, HYG and TLT cost more than the funds beside them
Updated Oct 2, 2026SPAB

Popular comparisons

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CORB vs SPAB

In short

Stated mandate

Why people hold it

Worth knowing

How CORB and SPAB differ

Level by level

Sector

Country, concentration and asset class

Country by domicile

Concentration

Asset class

Holdings

Cost over time

Year by year

Distribution history

Fall from peak · 5 years

Risk facts

AllianceBernstein's AB US Research Advanced ETF began trading on Nasdaq Monday

Best bond ETFs: LQD, HYG and TLT cost more than the funds beside them

How CORB and SPAB differ

Level by level

Sector

Country, concentration and asset class

Country by domicile

Concentration

Asset class

Holdings