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iShares Core Total USD Bond Market ETF
IUSB performance and flow charts
Performance
Flows
Historic performance and flows
Data as of September 15, 2026| 1M | 3M | YTD | 1Y | 3Y | 5Y | |
|---|---|---|---|---|---|---|
| Perf. | -1.12% | -1.91% | -1.21% | -0.54% | +14.07% | -1.08% |
| Flows | +$761M | +$2.78B | +$10.65B | +$10.78B | +$22.12B | +$31.77B |
Characteristics
The iShares Core Total USD Bond Market ETF is built to track the Bloomberg U.S. Universal Total Return Index - USD. This ETF provides physical exposure - by owning its shares you earn the return of the securities composing the index (as the ETF holds them directly). This share class generates a stream of income by distributing dividends.
| Management strategy | Passive |
| Strategy | Long Only |
| Provider | iShares |
| N° of holdings | 18026 |
| Replication method | Direct (Physical) |
| Asset class | Fixed Income |
| Dividend policy | Distributing |
Trailing 12m distribution yield | Join for free |
| Inception date | June 10, 2014 |
| ESG | No |
More data and info about IUSB on Trackinsight
Exposure
Data as of July 31, 2026Diversification
Total weight of top 15 holdings out of 18,026
Top 15 Holdings
Sectors
Countries
Maturity
Credit rating
Similar ETFs
Trading data
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | |
|---|---|---|---|---|
| Volatility | +3.65% | +3.45% | +4.72% | +5.53% |
Max drawdown | -2.40% | -2.89% | -4.33% | -17.83% |
Max drawdown duration | 78d | 198d | 280d | 1491d |
Time to recover | N/A | N/A | 162d | 1088d |
Replication quality
Data as of August 31, 2026Create an account to view replication metrics
1 year cumulative return difference | |
|---|---|
| Best | Join for free |
| Worst | Join for free |
| daily return difference | |
|---|---|
| Average | Join for free |
| Worst | Join for free |
What type of ETF is IUSB?
IUSB is a Passive ETF that provides exposure to Fixed Income assets. It is managed by iShares.
What index does IUSB track?
IUSB tracks the Bloomberg U.S. Universal Total Return Index - USD, aiming to replicate its performance through optimized sampling.
What does IUSB invest in?
This ETF provides exposure to US Mixed Ratings Aggregate Bonds. It is part of the segment: US Aggregate Bonds.
What is the expense ratio of IUSB?
The total expense ratio (TER) of IUSB is 0.06%, representing the annual fee charged by the fund manager.
When was IUSB launched?
IUSB was launched on June 10, 2014, marking its entry into the ETF market.
Who is the issuer of IUSB?
IUSB is issued by iShares.
What is the AUM of IUSB?
As of September 15, 2026, IUSB manages $43.44 B, reflecting the total assets held in the fund.
How has IUSB performed recently?
As of September 15, 2026, IUSB delivered a return of -1.12% over the past month (1M performance), -1.91% over the past three months (3M), and -1.21% year-to-date (YTD).
What are the recent fund flows for IUSB?
As of September 15, 2026, IUSB has seen net flows of +$761M in the past month (1M flow) and +$10.65B year-to-date (YTD).
Does IUSB pay dividends?
As of September 15, 2026, IUSB has a trailing 12-month distribution yield of 4.37%.
How many holdings are in IUSB
As of July 31, 2026, IUSB holds 18026 securities in its portfolio. This level of diversification can influence the fund’s risk profile and exposure to individual assets.
How diversified is IUSB?
As of July 31, 2026, IUSB holds 18026 securities, with 9.25% of its assets concentrated in its top 15 holdings.
What are the top holdings of IUSB?
As of July 31, 2026, IUSB holds a portfolio of 18026 underlyings, with its largest positions including BlackRock Liquidity TempCash, US01F0206874 and USA, Notes 4.375% 31dec2029, USD (AH-2029). These top holdings play a significant role in shaping the fund’s performance and exposure.
What countries or regions does IUSB invest in?
As of July 31, 2026, IUSB has its largest geographic exposures in USA.
What sectors or themes does IUSB focus on?
As of July 31, 2026, IUSB is primarily exposed to Sovereign and Finance.
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