IUSB

iShares Core Total USD Bond Market ETF

Broadest US bond ETF — covers investment-grade, high-yield, and EM bonds all in one. Wider than BND (which is investment-grade only). ~11,000 holdings across the full US fixed-income spectrum.

Backtest X-Ray Correlation Risk Map Compare vs BND

Fixed IncomeTER 0.06%Dist.

TER

0.06%

AUM

$30B

Holdings

~11,000

Data Range

— → —

Key Facts

ISIN

US46434V6619

Issuer

BlackRock

Benchmark

Bloomberg US Universal Index

Total Expense Ratio (TER)

0.06%

Assets Under Management

$30B approx.

Inception Date

2014-06-10

Domicile

United States

Legal Structure

Open-Ended Fund

Dividend Policy

Distributing (pays dividends)

Replication Method

Physical (Optimized Sampling)

UCITS Status

✗ Not UCITS

Fund Currency

USD

Primary Exchange

NASDAQ

Number of Holdings

~11,000

Equivalent ETFs

These ETFs track the same or very similar underlying index:

BNDVanguard Total Bond Market ETF

Backtest this ETF Official Fund Page

Who Is This ETF For?

✓One-fund US market solution capturing large, mid, small, and micro caps.

✓Portfolio stabilizer and income generator. Reduces overall portfolio volatility when paired with equities.

Key Risks to Consider

• Interest rate risk: bond prices fall when rates rise.

• Non-UCITS: may have unfavorable tax treatment for non-US investors (US estate tax, withholding tax).

Similar ETFs

AGG0.03% TER

iShares Core US Aggregate Bond ETF

Total US Bond Market · BlackRock

TIP0.19% TER

iShares TIPS Bond ETF

Inflation-Protected Bonds · BlackRock

SHV0.15% TER

iShares Short Treasury Bond ETF

Ultra Short-Term Treasury · BlackRock

VGSH0.04% TER

Vanguard Short-Term Treasury ETF

Short-Term Treasury · Vanguard

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Data & Methodology

Metadata sourced from official issuer documentation. Price data from Yahoo Finance (monthly adjusted close, includes reinvested dividends and splits). AUM figures are approximate and updated quarterly.

Data source: Yahoo Finance (adjusted close), iShares (metadata)Last verified: 2026-04-21

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BND

Vanguard Total Bond Market ETF

TER 0.03%$115B AUM

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TLT

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MBB

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💬 Frequently Asked Questions

Broadest US bond ETF — covers investment-grade, high-yield, and EM bonds all in one. Wider than BND (which is investment-grade only). ~11,000 holdings across the full US fixed-income spectrum.

IUSB has a total expense ratio (TER) of 0.06%, which means you pay $6 per year for every $10,000 invested.

Yes, IUSB is a distributing ETF that pays dividends to shareholders. The frequency depends on the fund's schedule.

IUSB is a US-domiciled ETF (not UCITS). Non-US investors should consider the US estate tax implications (40% on US assets above $60,000) and the 30% dividend withholding tax (reduced by treaty in some countries).

IUSB uses optimized sampling, holding a representative subset of the Bloomberg US Universal Index index to minimize costs while closely tracking performance.

Similar ETFs tracking the same or a very similar index include: BND. These may differ in domicile, currency, dividend policy, or expense ratio.