IDU — iShares U.S. Utilities ETF
Data updated: 2026-07-14
IDU — iShares U.S. Utilities ETF data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. United States Utilities Equity · $1.62B AUM · 0.38% expense ratio · 18.9% 1-yr return. From SEC regulatory filings.
IDU Fund Overview
IDU — iShares U.S. Utilities ETF is a US ETF managed by iSHARES TRUST, categorised as United States Utilities Equity. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US ETF
- Manager: iSHARES TRUST
- Category: United States Utilities Equity
- Assets under management: $1.62B
- 1-year return: 18.9%
- Ticker: IDU
- SEC CIK: 0001100663
- SEC series ID: S000004332
- Share class ID: C000012062
IDU Holdings
Top 10 holdings of iShares U.S. Utilities ETF by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Nextera Energy, Inc. | 12.22% |
| The Southern Company | 6.38% |
| Duke Energy Corporation | 6.03% |
| Constellation Energy Corporation. | 5.84% |
| Waste Management, Inc. | 5.15% |
| American Electric Power Company, Inc. | 4.39% |
| Sempra | 3.71% |
| Dominion Energy, Inc. | 3.29% |
| Vistra Corp. | 3.20% |
| Entergy Corporation | 3.15% |
IDU Portfolio Allocation
Asset-class allocation of iShares U.S. Utilities ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 99.8% |
| Cash & Equivalents | 0.2% |
IDU Performance
Total returns for IDU (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 9.8% |
| 1 year | 18.9% |
| 3 years (annualised) | 14.3% |
| 5 years (annualised) | 10.1% |
IDU Risk Information
Risk metrics for IDU, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 13.3%
IDU Costs and Fees
IDU costs about $38 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.38%
- Gross expense ratio: 0.38%
- Portfolio turnover: 4%
- Brokerage commissions: 0.07 bps of average net assets (SEC N-CEN)
IDU Cashflows
Over the 12 months to 2026-04, iShares U.S. Utilities ETF had net outflows of $25.11M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-04 | −$58.58M |
| 2026-03 | $228.69M |
| 2026-02 | −$10.99M |
| 2026-01 | −$327.71M |
| 2025-12 | −$165.63M |
| 2025-11 | $373.52M |
IDU Debt Constituents
No individual debt constituents are reported in iShares U.S. Utilities ETF's latest SEC N-PORT filing.
IDU Prospectus and SEC Filings
Official iShares U.S. Utilities ETF filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other United States Utilities Equity funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.