Which returned more over the last year, IBDT or ISTB?

In the year to Nov 12, 2026, with distributions reinvested, IBDT returned +2.3% and ISTB +1.0%.

Which is cheaper, IBDT or ISTB?

ISTB is cheaper, by 0.04 percentage points a year. That is about $4 on $10,000 held for a year. Fees come from each fund's prospectus.

Data as of Nov 12, 2026.

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IBDT vs ISTB: Differences, Returns & Fees

Return, fees and overlap, side by side.

Return gap

+1.3 pts

1 year to Nov 12, 2026: IBDT ahead, total return

Fee gap

0.04 pts

A year: IBDT 0.10%, ISTB 0.06%, per filings dated Feb 23, 2026

Overlap

Share of the two books held in common, holdings dated Jul 31, 2026

Net flow

+$29m / +$80m

IBDT / ISTB, Oct 12, 2026 to Nov 11, 2026, daily basis

Risk and return

Sep 28, 2018 to Nov 6, 2026 · 423 weekly returns · each against IUSB

IBDT ISTB

Return

Total return edge IBDT +34.5% +23.5%

Annualized edge IBDT +3.7% +2.6%

Price return edge IBDT −0.8% −3.0%

Risk

Volatility edge ISTB 7.5% 2.9%

Max drawdown edge ISTB −17.8% −9.0%

Downside capture 87.1% 40.8%

Beta 1.11 0.47

Risk-adjusted

Sharpe edge IBDT 0.15 −0.06

Sortino edge IBDT 0.19 −0.09

Treynor 0.010 −0.004

Calmar edge ISTB 0.21 0.29

Against the benchmark

Alpha +1.7% a year +0.1% a year

Alpha t-stat 1.26 0.19

Information ratio 0.42 0.11

Tracking error 3.9% 3.2%

Reading

From Sep 2018 to Nov 2026, IBDT returned more: +34.5% to +23.5%. ISTB swung less: 2.9% to 7.5%. ISTB fell less at its worst: −9.0% to −17.8%.

Full scorecard

19 measures Open ↓

Risk and return: IBDT vs ISTB: Differences, Returns & Fees
Measure	IBDT	ISTB	IUSB	Edge	How it is measured
Return
Total return	+34.5%	+23.5%		IBDT	Price change plus distributions, reinvested.
Annualized	+3.7%	+2.6%		IBDT	Total return as a yearly rate.
Price return	−0.8%	−3.0%		IBDT	Price change alone, distributions left out.
Risk
Volatility	7.5%	2.9%		ISTB	Spread of weekly returns, annualized. Lower is steadier.
Downside deviation	5.8%	2.1%		ISTB	Like volatility, counting only weeks below the Treasury bill rate.
Max drawdown	−17.8%	−9.0%		ISTB	Deepest fall from a high to the low after it.
Upside capture	97.4%	45.6%	100.0%	IBDT	Share of its benchmark's rise caught in the weeks it rose.
Downside capture	87.1%	40.8%	100.0%	ISTB	Share of its benchmark's fall taken in the weeks it fell. Lower is better.
Beta	1.11	0.47	1.00	ISTB lower	How far it moves for each 1% its benchmark moves.
R squared	0.74	0.88	1.00	Not an edge	Share of its weekly moves its benchmark explains.
Risk-adjusted
Sharpe	0.15	−0.06		IBDT	Return above Treasury bills per unit of volatility.
Sortino	0.19	−0.09		IBDT	Return above Treasury bills per unit of downside deviation.
Treynor	0.010	−0.004	−0.005	IBDT	Return above Treasury bills per unit of beta.
Calmar	0.21	0.29		ISTB	Annualized return divided by the max drawdown.
Against the benchmark
Benchmark	IUSB	IUSB	IUSB		The ETF each fund is measured against.
Alpha	+1.7% a year	+0.1% a year	0.0%	Not significant	Yearly return beyond what its beta to the benchmark predicts.
Alpha t-stat	1.26	0.19		Not an edge	How sure the alpha is. Below 2, it could be chance.
Alpha range	−1.0% to +4.3%	−0.6% to +0.8%		Both include zero	The 95% range for the yearly alpha.
Information ratio	0.42	0.11		IBDT	Return against its benchmark per unit of tracking error.
Tracking error	3.9%	3.2%	0.0%	Not an edge	How far weekly returns stray from the benchmark, annualized.

Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 423 weekly returns. Cash rate: the 13-week Treasury bill.

Pair scorecard

ISTB costs 0.04 points a year less; their one-year returns differ by 1.3 points; ISTB is 1.3 times larger.

IBDT vs ISTB: Differences, Returns & Fees
Measure	IBDT	ISTB
Return
Measure	IBDT	ISTB
Total return, 1 year	+2.3%	+1.0%
Benchmark
Measure	IBDT	ISTB
What it tracks	Bloomberg December 2028 Maturity Corporate Index	Bloomberg U.S. Universal 1-5 Year Index
Cost and size
Measure	IBDT	ISTB
Expense ratio	0.10%	0.06%
Net assets, as of Nov 11, 2026	$4.1bn	$5.3bn
Holdings
Measure	IBDT	ISTB
Holdings in common	4%

Method

Key numbers

+2.3%

IBDT total return, 1 year

+1.0%

ISTB total return, 1 year

0.10%

IBDT expense ratio

0.06%

ISTB expense ratio

What they share

By the books each fund has filed, IBDT and ISTB hold 4% of their money in the same securities at the same weight. Holdings dated Jul 31, 2026.

50%

0 half 100%

half

4% in common

Positions both hold · largest shared weight first IBDT ISTB

CVS Health Corp, due Mar 25, 2028 0.88% 0.03%

Pfizer Investment Enterprises Pte Ltd, due May 19, 2028 0.70% 0.03%

Amgen Inc, due Mar 2, 2028 0.66% 0.03%

AerCap Ireland Capital DAC / AerCap Global Aviation Trust, due Oct 29, 2028 0.64% 0.02%

Cigna Group/The, due Oct 15, 2028 0.66% 0.02%

Salesforce Inc, due Mar 15, 2028 0.55% 0.02%

Apple Inc, due Feb 8, 2028 0.40% 0.02%

NVIDIA Corp, due Jun 15, 2028 0.52% 0.02%

Morgan Stanley, due Jul 22, 2028 0.53% 0.02%

Citibank NA, due Sep 29, 2028 0.45% 0.02%

RTX Corp, due Nov 16, 2028 0.53% 0.02%

Sumitomo Mitsui Financial Group Inc, due Jan 13, 2028 0.31% 0.02%

Only in one fund ↓

Only in IBDT

General Motors Financial Co Inc, due Jan 5, 2028 0.08%

Entergy Mississippi LLC, due Jun 1, 2028 0.07%

Pacific Gas and Electric Co, due Aug 1, 2028 0.07%

UDR Inc, due Jan 15, 2028 0.05%

Oklahoma Gas and Electric Co, due Aug 15, 2028 0.05%

Keybank National Association, due Feb 1, 2028 0.05%

UBS AG/Stamford CT, due Feb 15, 2028 0.04%

Host Hotels & Resorts LP, due Dec 15, 2028 0.04%

Only in ISTB

U.S. Treasury Notes, due Jun 15, 2028 1.08%

U.S. Treasury Notes, due Feb 28, 2030 0.90%

U.S. Treasury Notes, due Oct 31, 2030 0.88%

U.S. Treasury Notes, due Nov 30, 2030 0.83%

U.S. Treasury Notes, due Jan 31, 2031 0.81%

U.S. Treasury Notes, due Sep 30, 2030 0.79%

U.S. Treasury Notes, due Aug 31, 2030 0.78%

U.S. Treasury Notes, due May 31, 2030 0.75%

Check overlap with more funds →

Side by side

IBDT iShares iBonds Dec 2028 Term Corporate ETF ISTB iShares Core 1-5 Year USD Bond ETF

Where it sits Bond ETF Bond ETF

Issuer iShares iShares

What it is Tracks an index Tracks an index

Total return, 1 year +2.3% +1.0%

Its benchmark over the same days −1.0% (IUSB) −1.0% (IUSB)

Gap to its benchmark +3.3 pts vs IUSB +2.0 pts vs IUSB

Expense ratio 0.10% 0.06%

Holdings 744 7602

Net assets, IBDT as of Nov 11, 2026 and ISTB as of Nov 12, 2026 $4.1bn $5.3bn

IBDT and ISTB on the fields both publish, as of Nov 12, 2026. Source: ETFIQ.

Client brief:

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About each fund

IBDT

IBDT tracks an index. Over the year to Nov 12, 2026 it returned +2.3% with distributions reinvested, against −1.0% for its benchmark, the Bloomberg U.S. Universal Index. The prospectus expense ratio is 0.10% a year.

ISTB

ISTB tracks an index. Over the year to Nov 12, 2026 it returned +1.0% with distributions reinvested, against −1.0% for its benchmark, the Bloomberg U.S. Universal Index. The prospectus expense ratio is 0.06% a year.

Questions people ask

Which returned more over the last year, IBDT or ISTB?: In the year to Nov 12, 2026, with distributions reinvested, IBDT returned +2.3% and ISTB +1.0%.
Which is cheaper, IBDT or ISTB?: ISTB is cheaper, by 0.04 percentage points a year. That is about $4 on $10,000 held for a year. Fees come from each fund's prospectus.

Other comparisons

IBDT vs NEAR IBDT vs JFLX IBDT vs SUSB IBDT vs VSDB ISTB vs SLQD ISTB vs USTB ISTB vs JSCP ISTB vs JFLX

Where to next

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

Sources and dates

IBDT and ISTB filings on SEC EDGAR ↗

IBDT and ISTB prospectus with the expense ratio (SEC) ↗

iShares page for IBDT ↗

iShares page for ISTB ↗

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, IBDT against ISTB, data as of Nov 12, 2026. https://etfiq.com/compare/any/ibdt-vs-istb

Open data →

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

Net assets: $4.1bn on Nov 11, 2026 for iShares iBonds Dec 2028 Term Corporate ETF, and $5.3bn on Nov 12, 2026 for iShares Core 1-5 Year USD Bond ETF.

IBDT on its own →ISTB on its own →

Growth of 100

IBDT and ISTB

Total return, distributions reinvested, 1 year.

IBDT +2.3%ISTB +1.0%

Nov 12, 2025Nov 12, 2026

IBDT +2.3%, ISTB +1.0%: IBDT +1.3 pts ahead, 1 year, Nov 12, 2025 to Nov 12, 2026.