iShares Core 1-5 Year USD Bond ETF

iShares Core 1-5 Year USD Bond ETF

About

iShares Core 1-5 Year USD Bond ETF (US46432F8591) is a US-listed bond ETF tracking the BBG US Universal 1-5 Year Index (USD). With a expense ratio of 0.06%, it ranks among the lowest-cost options in its category, paying distributions. The fund holds 7,284 positions across 95 regions with 5.0B in assets, with heavy concentration — 76% in United States, 57% in government bonds.

Score Breakdown

Scores are scaled 1–10 on a logarithmic curve relative to all ETFs in the database. Last updated: Jun 22, 2026
Component Score Details
Cost (30%) 9.3 Tracking Difference: 9.0 · TD Consistency: — · Expense Ratio: 10.0
Liquidity (25%) 9.8 Assets Under Management

Data sources: provider factsheets, exchange data, and NAV history. Information for educational purposes only — not investment advice.

Ticker ISTB
ISIN
Fund Size $5.0B
Issuer iShares
Distribution Pays Distributions
Replication Physical
Inception Oct 2012
Base Currency USD
Index BBG US Universal 1-5 Year Index (USD)
Asset Class Bonds

Costs

9.3
This fund has low total costs, with competitive tracking and expense ratios.

Cost Metrics Explained

What expense ratio, tracking difference, and TD consistency measure

Expense ratio (Total Expense Ratio) is the annual fee the fund charges, deducted from assets. It’s the headline cost, but not the full picture.

Tracking Difference measures how much the fund actually lags (or leads) its benchmark index per year. This is the single best measure of true cost — it captures the expense ratio plus all other drags like sampling error and tax withholding. A lower (or negative) value is better.

TD Consistency measures how stable the tracking difference is from year to year. A low value means predictable, reliable costs; a high value means costs can vary significantly.

Expense Ratio0.00%
 
Metric Value
Expense Ratio 0.06%

Cumulative Returns

Performance across different time periods.
Year to Date+0.00%
1 Year+0.00%
3 Years+0.00%
5 Years+0.00%
Inception+0.00%
 
Period Cumulative Return
1 Month
3 Months
6 Months
1 Year +4.19%
3 Years +4.95%
5 Years +1.89%
10 Years +2.34%
YTD +0.62%
Since Inception +2.04%

Holdings

This fund invests into 7,284 individual investments.
#1
United States Treasury Note/Bond
1.11%
#2
BLACKROCK CASH CL INST SL AGENCY
1.01%
#3
United States Treasury Note/Bond
0.94%
#4
United States Treasury Note/Bond
0.91%
#5
United States Treasury Note/Bond
0.86%
#6
United States Treasury Note/Bond
0.85%
#7
United States Treasury Note/Bond
0.82%
#8
United States Treasury Note/Bond
0.82%
#9
United States Treasury Note/Bond
0.78%
#10
United States Treasury Note/Bond
0.77%
View all holdings (50)
# Holding Ticker Weight
1 United States Treasury Note/Bond 110.92%
2 BLACKROCK CASH CL INST SL AGENCY 100.59%
3 United States Treasury Note/Bond 94.41%
4 United States Treasury Note/Bond 90.98%
5 United States Treasury Note/Bond 86.01%
6 United States Treasury Note/Bond 84.79%
7 United States Treasury Note/Bond 82.47%
8 United States Treasury Note/Bond 81.82%
9 United States Treasury Note/Bond 78.06%
10 United States Treasury Note/Bond 76.85%
11 United States Treasury Note/Bond 76.77%
12 United States Treasury Note/Bond 67.78%
13 United States Treasury Note/Bond 66.95%
14 United States Treasury Note/Bond 65.33%
15 United States Treasury Note/Bond 64.53%
16 United States Treasury Note/Bond 63.90%
17 United States Treasury Note/Bond 60.49%
18 United States Treasury Note/Bond 60.49%
19 United States Treasury Note/Bond 58.40%
20 United States Treasury Note/Bond 58.18%
21 United States Treasury Note/Bond 56.40%
22 United States Treasury Note/Bond 53.84%
23 United States Treasury Note/Bond 53.73%
24 United States Treasury Note/Bond 53.42%
25 United States Treasury Note/Bond 52.69%
26 United States Treasury Note/Bond 52.57%
27 United States Treasury Note/Bond 52.38%
28 United States Treasury Note/Bond 52.27%
29 United States Treasury Note/Bond 51.51%
30 United States Treasury Note/Bond 51.26%
31 United States Treasury Note/Bond 51.19%
32 United States Treasury Note/Bond 51.15%
33 TREASURY NOTE (OTR) 50.22%
34 United States Treasury Note/Bond 49.97%
35 United States Treasury Note/Bond 49.00%
36 United States Treasury Note/Bond 48.70%
37 United States Treasury Note/Bond 48.48%
38 United States Treasury Note/Bond 48.31%
39 TREASURY NOTE (OTR) 48.11%
40 TREASURY NOTE (OTR) 47.94%
41 United States Treasury Note/Bond 47.59%
42 United States Treasury Note/Bond 46.91%
43 TREASURY NOTE (OTR) 46.85%
44 United States Treasury Note/Bond 45.32%
45 United States Treasury Note/Bond 45.14%
46 United States Treasury Note/Bond 44.84%
47 United States Treasury Note/Bond 44.06%
48 United States Treasury Note/Bond 43.69%
49 United States Treasury Note/Bond 43.29%
50 United States Treasury Note/Bond 43.24%

Sectors

Allocation by industry sector.
 
Sector Weight
Government Bonds 5675.00%
Corporate Bonds 3013.00%
Unknown 937.00%
Financials 129.00%
Securitized Bonds 126.00%
Consumer Discretionary 67.00%
Health Care 28.00%
Materials 23.00%
Technology 21.00%
Industrials 19.00%
Consumer Staples 9.00%
Utilities 8.00%
Real Estate 5.00%
Energy 4.00%

Regions

Geographic allocation by country of risk.
 
Country Weight
United States 7574.00%
UNKNOWN 818.00%
SNAT 206.00%
Canada 166.00%
United Kingdom 128.00%
Japan 104.00%
Cayman Islands 101.00%
France 79.00%
South Korea 56.00%
Germany 55.00%
Australia 46.00%
Netherlands 45.00%
Türkiye 33.00%
United Arab Emirates 32.00%
British Virgin Islands 30.00%
Saudi Arabia 28.00%
China 27.00%
Mexico 25.00%
Hong Kong SAR China 24.00%
Indonesia 24.00%
Argentina 21.00%
Switzerland 19.00%
Luxembourg 19.00%
Spain 18.00%
Ireland 18.00%
Norway 18.00%
Singapore 14.00%
Bermuda 13.00%
Chile 13.00%
India 12.00%
Israel 11.00%
Sweden 11.00%
Brazil 10.00%
MULT 10.00%
Philippines 10.00%
Qatar 10.00%
Colombia 9.00%
Oman 9.00%
Austria 8.00%
Italy 8.00%
New Zealand 8.00%
Panama 8.00%
Finland 7.00%
Bahrain 6.00%
Hungary 6.00%
Malaysia 6.00%
South Africa 6.00%
Denmark 5.00%
Egypt 5.00%
Nigeria 5.00%
Poland 5.00%
Romania 5.00%
Dominican Republic 4.00%
Kuwait 4.00%
Kazakhstan 4.00%
Peru 4.00%
Thailand 4.00%
Angola 3.00%
Belgium 3.00%
Liberia 3.00%
Uzbekistan 3.00%
Bolivia 2.00%
Ghana 2.00%
Guatemala 2.00%
Jordan 2.00%
Morocco 2.00%
Pakistan 2.00%
Serbia 2.00%
Uruguay 2.00%
XS 2.00%
Armenia 1.00%
Costa Rica 1.00%
Czechia 1.00%
Ecuador 1.00%
Gabon 1.00%
Iraq 1.00%
Jersey 1.00%
Jamaica 1.00%
Kenya 1.00%
Kyrgyzstan 1.00%
Lebanon 1.00%
Sri Lanka 1.00%
Mauritius 1.00%
El Salvador 1.00%
Trinidad & Tobago 1.00%
Ukraine 1.00%
Azerbaijan 0.00%
Côte d’Ivoire 0.00%
Georgia 0.00%
Guernsey 0.00%
Honduras 0.00%
Isle of Man 0.00%
Montenegro 0.00%
Mongolia 0.00%
Papua New Guinea 0.00%
Paraguay 0.00%
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