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iShares Core 1-5 Year USD Bond ETF (ISTB) Holdings List

iShares Core 1-5 Year USD Bond ETF logo
$47.25 +0.02 (+0.04%)
Closing price 04:00 PM Eastern
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$47.25 0.00 (0.00%)
As of 07:48 PM Eastern
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What stocks does ISTB hold?

The iShares Core 1-5 Year USD Bond ETF (ISTB) has 7,507 holdings, with BLACKROCK CASH CL INST SL AGENCY, TREASURY NOTE - 3.88 2028-06-15, and TREASURY NOTE - 4.13 2031-06-30 among its largest positions. The top 25 ISTB holdings ordered by weight make up 17.67% of the total fund. ISTB is a fixed income fund in the corporate category that invests in investments, focused on investment grade strategies within the North America region. This page includes a complete ISTB stock holdings list ranked by weight, along with a full breakdown of sector, geographic, industry, and currency exposure.

Top 25 ISTB Holdings

RankCompanyCurrent PriceWeightShares Held
1BLACKROCK CASH CL INST SL AGENCYN/A1.02%53,549,952
2TREASURY NOTE - 3.88 2028-06-15N/A0.97%51,025,000
3TREASURY NOTE - 4.13 2031-06-30N/A0.92%49,595,000
4TREASURY NOTE - 4.0 2030-02-28N/A0.87%46,928,000
5TREASURY NOTE - 3.63 2030-10-31N/A0.85%46,317,000
6TREASURY NOTE (2OLD) - 4.38 2031-07-31N/A0.83%44,309,000
7TREASURY NOTE - 3.88 2028-07-15N/A0.81%42,845,000
8TREASURY NOTE - 3.5 2030-11-30N/A0.81%44,173,000
9TREASURY NOTE - 3.75 2031-01-31N/A0.78%42,591,000
10TREASURY NOTE - 3.63 2030-09-30N/A0.76%41,831,000
11TREASURY NOTE - 3.63 2030-08-31N/A0.75%41,367,000
12TREASURY NOTE - 4.0 2030-05-31N/A0.73%39,213,000
13TREASURY NOTE - 3.5 2028-11-15N/A0.69%36,405,000
14TREASURY NOTE - 4.5 2029-05-31N/A0.63%33,094,000
15TREASURY NOTE - 4.25 2029-06-30N/A0.63%33,148,000
16TREASURY NOTE - 4.25 2030-01-31N/A0.60%32,072,000
17TREASURY NOTE - 3.88 2030-06-30N/A0.59%32,057,000
18TREASURY NOTE - 3.63 2030-12-31N/A0.59%32,165,000
19TREASURY NOTE - 4.13 2029-03-31N/A0.56%30,000,000
20TREASURY NOTE - 3.38 2027-11-30N/A0.56%29,450,000
21TREASURY NOTE - 4.0 2030-03-31N/A0.56%30,177,000
22TREASURY NOTE - 4.25 2031-06-30N/A0.55%29,579,000
23TREASURY NOTE - 4.13 2029-10-31N/A0.55%29,059,000
24TREASURY NOTE - 4.0 2029-07-31N/A0.54%28,542,000
25TREASURY NOTE - 4.25 2029-02-28N/A0.52%27,780,000

ISTB Geographic Exposure

ISTB's largest geographic exposure is United States at 92.9%, followed by QQ at 0.2%.

  • United States
    92.9%
  • QQ
    0.2%
  • United Kingdom
    0.2%
  • Canada
    0.1%

ISTB Currency Exposure

ISTB is predominantly exposed to USD at 100.0%, followed by EUR at 0.0%.

  • USD
    100.0%

ISTB Sector Exposure

ISTB's largest sector exposure is Financials at 4.5%, followed by Government at 2.9%.

  • Financials
    4.5%
  • Government
    2.9%
  • Industrials
    0.4%
  • Consumer Discretionary
    0.4%
  • Energy
    0.4%
  • Communications
    0.4%
  • Utilities
    0.4%
  • Health Care
    0.3%
  • Consumer Staples
    0.2%
  • Materials
    0.2%
  • Other
    0.4%

ISTB Industry Exposure

ISTB's largest industry exposure is Thrifts & Mortgage Finance at 2.7%, followed by Banks at 0.9%.

  • Thrifts & Mortgage Finance
    2.7%
  • Banks
    0.9%
  • Capital Markets
    0.3%
  • Oil, Gas & Consumable Fuels
    0.3%
  • Utilities
    0.2%
  • Real Estate Management & Development
    0.2%
  • Insurance
    0.2%
  • Diversified Financial Services
    0.1%
  • Diversified Telecommunication Services
    0.1%
  • Specialty Retail
    0.1%
  • Other
    1.5%

ISTB Sub-Industry Exposure

ISTB's largest sub-industry exposure is Thrifts & Mortgage Finance at 2.7%, followed by Diversified Banks at 0.7%.

  • Thrifts & Mortgage Finance
    2.7%
  • Diversified Banks
    0.7%
  • REIT
    0.3%
  • Investment Banking & Brokerage
    0.3%
  • Electric Utilities
    0.2%
  • Oil & Gas Storage & Transportation
    0.1%
  • Integrated Telecommunication Services
    0.1%
  • Aerospace & Defense
    0.1%
  • Packaged Foods & Meats
    0.1%
  • Consumer Finance
    0.1%
  • Other
    0.8%

ISTB Coupon Exposure

ISTB's largest coupon exposure is 4-6 at 47.4%, followed by 2-4 at 38.2%.

  • 4-6
    47.4%
  • 2-4
    38.2%
  • 0-2
    7.6%
  • 6-8
    4.7%
  • 8-10
    1.7%
  • 10-15
    0.4%

ISTB Maturity Exposure

ISTB's largest maturity exposure is 3-5 at 45.5%, followed by 1-3 at 31.3%.

  • 3-5
    45.5%
  • 1-3
    31.3%
  • 5-10
    18.8%
  • 10-15
    1.6%
  • 30+
    1.0%
  • 20-30
    0.5%
  • 0-1
    0.4%
  • 15-20
    0.1%

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MarketBeat tracks iShares Core 1-5 Year USD Bond ETF holdings and portfolio composition, last updated on 10/13/2026.
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