ETF Trace

Fund report

US-listed · United States

ISTB

Seeks to track the investment results of an index composed of U.S. dollar-denominated bonds that are rated either investment-grade or high yield with remaining maturities between one and five years.
iShares Core 1-5 Year USD Bond ETF
US46432F8591 · 0BYM · BlackRock (iShares)

7,434 holdings as of 2026-08-27 · top 10 = 9.0% · TER 0.06%

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Concentration
Well diversifiedtop 10 = 9.0%
diversifiedconcentrated
GROWTH · PRICE DEVELOPMENTrebased to 0%
Holdings
7,434
as of 2026-08-27
Top 10
9.0%
TER
0.06%
cheaper than 91% of peers
Net assets
US$5.09B
reported in USD
Largest
1.1%
P / E
–
Sections
Holdings as of 2026-08-27.
01Overview
the fund's regulatory facts
Fund currency
USD
Domicile
United States
Volatility 1Y
2.3%
Tracked index
BBG US Universal 1-5 Year Index (USD)
How it tracks
Index, sampling
Lends its stock
Yes
02Performance
market price return · as of 2026-09-11
1M
-1.0%
3M
-1.4%
6M
-1.9%
YTD
-2.5%
1Y
-2.8%
Trackingfund minus BBG US Universal 1-5 Year Index (USD) · annualised
1Y return gap
-0.01 pp/yr
3Y return gap
-0.02 pp/yr
5Y return gap
+0.00 pp/yr
3Y tracking error
0.07%

A positive return gap means the fund finished ahead of the index over that window. The 3Y tracking error shows how variable that monthly gap was; lower means steadier tracking. MethodologyReturn gap and tracking errorReturn gap is the fund's return minus its index over the same months, converted to a yearly rate. Tracking error is the annualised standard deviation of those monthly fund-minus-index returns. Both lines come from the manager's own chart, in the same currency and the exact index variant the fund tracks. We use month-end values so different intraday valuation times are not mistaken for tracking error.. Not investment advice.

03Holdings
50 largest · as of 2026-08-27
#CompanyIdentifierWeight
1United States Treasury UST
1.1
2US TREASURY N/B 4.125 06/30/2031 UST
1.1
3BlackRock Funds III: BlackRock Cash Funds: Institutional; SL Agency Shares USBISXX
1.0
4United States Treasury USTNOTE
0.9
5United States Treasury UST
0.9
6United States Treasury UST
0.8
7United States Treasury UST
0.8
8United States Treasury UST
0.8
9United States Treasury UST
0.8
10United States Treasury UST
0.8
11United States Treasury UST
0.7
12United States Treasury UST
0.7
13United States Treasury UST
0.7
14United States Treasury UST
0.7
15United States Treasury USTNOTE
0.6
16United States Treasury USUS91282CNK35
0.6
17United States Treasury UST
0.6
18United States Treasury UST
0.6
19United States Treasury UST
0.6
20United States Treasury UST
0.6
21United States Treasury UST
0.6
22United States Treasury UST
0.6
23United States Treasury UST
0.6
24United States Treasury UST
0.5
25United States Treasury UST
0.5
26US TSY N/B 4% 31/05/28 UST
0.5
27United States Treasury USTNOTE
0.5
28United States Treasury USUS91282CNN73
0.5
29United States Treasury UST
0.5
30United States Treasury UST
0.5
31United States Treasury UST
0.5
32United States Treasury UST
0.5
33United States Treasury UST
0.5
34United States Treasury USTNOTE
0.5
35United States Treasury USUS91282CLN91
0.5
36United States Treasury UST
0.5
37United States Treasury UST
0.5
38United States Treasury UST
0.5
39United States Treasury UST
0.5
40TREASURY NOTE UST
0.5
41TREASURY NOTE UST
0.5
42TREASURY NOTE UST
0.5
43United States Treasury UST
0.5
44TREASURY NOTE UST
0.5
45United States Treasury UST
0.5
46United States Treasury UST
0.4
47United States Treasury UST
0.4
48United States Treasury UST
0.4
49United States Treasury UST
0.4
50United States Treasury UST
0.4
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04Exposure
Bonds 98.9%Cash 1.0%
By sector
Consumer Cyclical0.0%
Financial Services0.0%
Industrials0.0%
Consumer Defensive0.0%
By country
USUnited States83.3%
SUPRANATIONALSUPRANATIONAL2.0%
CACanada1.7%
GBUnited Kingdom1.3%
JPJapan1.1%
FRFrance0.8%
KYCayman Islands0.7%
SASA0.6%
CurrencyUSD 84.5% EUR 2.9% CAD 1.7% GBP 1.4% JPY 1.1%
05Similar funds
funds with comparable exposure
AGG
the US aggregate index (AGG)
3,984 shared companies
36.7%compare →
BND
the US total bond market (BND)
3,252 shared companies
33.6%compare →

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