ISTB vs SDUR: Grades, Fees and Holdings Compared

iShares Core 1-5 Year USD Bond ETF

ISTBANasdaq

Aristotle Short Term Income ETF

SDURDNYSE Arca

Overlap

No data

Expense ratio

ISTB −0.33pt a year

ISTB0.06%SDUR0.39%

Avg volume · 30D

ISTB 45.5×the volume

ISTB537KSDUR11.8K

ISTB vs SDUR Performance

Aug 7, 2026 – Nov 9, 2026

+0.1%ISTB+0.4%SDUR

Expense ratio: ISTB 0.06%, better; SDUR 0.39%
Fund size: ISTB $5.37B; SDUR $5M
1Y total return: ISTB +1.8%; SDUR No data
Yield (12M): ISTB 4.36%; SDUR No data
Holdings: ISTB 7579; SDUR 78
Avg volume (30D): ISTB 537K sh, better; SDUR 11.8K sh
NAV per share: ISTB $47.52; SDUR $25.01
52W range

ETF.net Grade

Pillar letters and Scores for ISTB, SDUR, with each pillar’s weight
Pillar	ISTB	SDUR
Cost30% weight	A89Higher	F21
Mission25% weight	Not scored	Not scored
Risk15% weight	C50Higher	D37
Tradability15% weight	A77Higher	F20
Holdings10% weight	A79Higher	D33
Durability5% weight	A91Higher	F21

Rank among Short-Term Core Bond funds

How we build Categories ›

Same Category. ISTB and SDUR are both graded against the same 12 Short-Term Core Bond funds, so their Grades compare head to head.

Short-Term Core Bond⁠

Category · 12 funds

See all 12 ›

ISTB ranks 2nd and SDUR 12th of 12 funds in the Short-Term Core Bond Category.

Rank 1ABSVVanguard Short-Term Bond ETFScore 79
Rank 2AISTBiShares Core 1-5 Year USD Bond ETFScore 77
Rank 3BAVSFAvantis Short-Term Fixed Income ETFScore 62
Rank 11DNBSDNeuberger Berman Short Duration Income ETFScore 35
Rank 12DSDURAristotle Short Term Income ETFScore 25

Our read on each fund

ETF.net Research

ISTBAiShares Core 1-5 Year USD Bond ETF

SDURDAristotle Short Term Income ETF

In short

ISTB The Agg with the long end trimmed off, plus a dash of high yield. ISTB tracks a broad USD bond index that stops at five-year maturities, so you get core bond plumbing with a fraction of the rate sensitivity, for six basis points.

SDUR No data

Stated mandate

ISTB The fund seeks to track an index of U.S.-dollar bonds rated investment grade or high yield, with remaining maturities from one to five years.

SDUR No data

Why people hold it

ISTB Six basis points a year, a fraction of the typical broad bond ETF fee. On a bond fund, every basis point of fee comes straight out of the income you keep.ishares.com
The index casts a wider credit net than the Agg: investment grade plus high yield, thousands of individual bonds deep.ishares.com
Nothing in the index matures past five years, so the portfolio carries far less interest-rate sensitivity than full-maturity core bond funds like BND, SPAB or SCHZ.ishares.com
Running since 2012, multi-billion-dollar, actively traded, and it pays income monthly rather than quarterly.

SDUR No data

Worth knowing

ISTB The high yield sleeve adds credit risk that investment-grade-only short bond funds skip.ishares.com
Short maturities cut both ways: smaller price swings when rates rise, and less lift when they fall.
Not a cash substitute. The share price moves daily, and maturing bonds get replaced at whatever rates prevail, so the monthly payout drifts.ishares.com

SDUR No data

Full ISTB profile⁠

Full SDUR profile⁠

ISTB vs SDUR Holdings

How ISTB and SDUR differ

No overlap figure

Two bond funds rarely hold the same issues.

Level by level

Countryby domicile90.3%
Asset classBonds100%

Sector

ISTB and SDUR share no Sector name, so they cannot be compared by Sector.

Country, concentration and asset class

Country by domicile

Country weights in ISTB and SDUR, widest gap first
Country	Gap	ISTB	SDUR
United States	SDUR +4.5 points	84.3%	88.8%
Cayman Islands	SDUR +2.8 points	3.5%	6.3%
France	SDUR +1.6 points	0.8%	2.4%
United Kingdom	ISTB +1.4 points	1.4%	0.0%
Japan	ISTB +1.0 points	1.0%	0.0%
Switzerland	SDUR +0.9 points	0.1%	1.0%
Luxembourg	ISTB +0.8 points	0.8%	0.0%
South Korea	ISTB +0.6 points	0.6%	0.0%
Other countries (32)	ISTB +6.0 points	7.5%	1.5%

Concentration

Weight in the 10 largest Holdings

ISTB8.6%
SDUR51.2%

Securities held

ISTB7,524
SDUR78

Asset class

ISTB: Bonds
SDUR: Bonds

Holdings

Two bond funds rarely hold the same issues, so this page lists no shared Holdings. ISTB holds 7,524 securities, SDUR 78.

All 7,582 ISTB holdings⁠All SDUR 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.

ISTB vs SDUR Cost

Overpaying SDUR vs ISTB

$6,628

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

ISTB 0.06%
$1,270
SDUR 0.39%
$7,898

Amount$10,000

Years30 years

Cost over time

ISTB 0.06%
SDUR 0.39%
Overpaying

Year by year

Year	ISTB	SDUR	Overpaying
10	$110	$705	$595
20	$432	$2,725	$2,293
30	$1,270	$7,898	$6,628

Expense ratio

0.06%ISTB, cheaper
0.39%SDUR

ISTB0.06%SDUR0.39%

0.03%0.45%

Middle half of Short-Term Core Bond funds
Median 0.20%

ISTB 2nd cheapest of 12 funds

SDUR 10th cheapest of 12 funds

ISTB vs SDUR Dividends

Last 12 months to Nov 9, 2026

Yield (12M): ISTB 4.36%; SDUR No data
Payout (12M): ISTB $2.07; SDUR No data
Last payment: ISTB $0.18; SDUR $0.10
Ex-dividend: ISTB Nov 2, 2026; SDUR Oct 30, 2026
Paid on: ISTB Nov 5, 2026; SDUR Nov 2, 2026
Frequency: ISTB Monthly; SDUR Monthly

Distribution history

Per share, 2023 to 2026, same scale for both

ISTBMonthly · 46 paymentsAll ISTB payments⁠

SDURMonthly · 3 paymentsAll SDUR payments⁠

ISTB vs SDUR Risk

Fall from peak · 5 years

This chart needs five years of history for both funds.

Risk facts

VolatilityStd dev, 3 years: ISTB 2.5%SDUR No data
Return per unit of riskSharpe ratio, 3 years: ISTB 0.24SDUR No data
Worst fallMax drawdown, 5 years: ISTB −8.7%SDUR No data
Market sensitivityBeta, 5 years: ISTB 0.39SDUR 0.12; Market = 1

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