IDU — iShares U.S. Utilities ETF
Utilities Ranked #354 of 458 tracked ETFs · Issued by iShares
IDU Price Performance — Growth of $10,000
Value of a $10,000 investment in IDU over time, compared with SPY. Both lines are rebased to $10,000 on the first shared date. Based on total returns — prices are adjusted for dividends and splits, so this assumes distributions were reinvested. Hover or tap the chart for exact values.
IDU Drawdown
The "underwater" chart: IDU's decline from its highest prior value at each point in time. It shows how deep past losses ran and how long the fund took to recover to break-even.
What If You'd Invested in IDU?
See what a lump sum in IDU would have grown to, with the option to add a regular monthly contribution on top. Figures use total returns — dividends are assumed reinvested.
Past performance doesn't predict future results. Assumes contributions on the first trading day of each month, no trading costs or taxes, and reinvested distributions. History is limited to the range published in the site's daily return data.
Overview
The iShares U.S. Utilities ETF (IDU) is an iShares-managed fund tracking the utilities sector, with $1.30 billion in assets under management. It holds a C grade and ranks fifth out of five peers in its category, placing it 354th among all tracked ETFs. The fund’s 0.37% expense ratio is significantly higher than the category median of 0.09%, while its 2.08% dividend yield trails the median of 2.53%. Concentration is notable, with the top ten holdings comprising 53.4% of assets and NextEra Energy, Inc. representing the largest single position at 12.2%.
IDU has been upgraded from a D to a C grade as of August 7, 2026, reflecting its current standing. The fund’s price of $109.61 sits at 28.9% of its 52-week range, indicating it is closer to its low than its high. Short-term performance shows a divergence, with a 1.17% year-to-date gain contrasting against a -6.43% return over the last six months. Over the longer term, the fund has delivered a 49.24% return over three years, though its one-year return of 4.81% lags the category median of 5.60%. This performance record is based on 3.0 years of available price history.
The fund exhibits low volatility at 14.36% annualized and a beta of 0.42, suggesting it moves less than the broader market. Despite this lower sensitivity, the Sharpe ratio of -0.01 indicates that risk-adjusted returns have been negative. The maximum drawdown of -12.35% highlights the extent of recent losses from peak values. Liquidity is characterized by an average daily volume of 121,641 shares and a bid-ask spread of 2.51%, which may impact trading costs.
AI-generated summary based on the data on this page.
IDU Top Holdings
| # | Holding | % of Net Assets | Value |
|---|---|---|---|
| 1 | NEXTERA ENERGY, INC. | 12.22% | $198M |
| 2 | THE SOUTHERN COMPANY | 6.38% | $103M |
| 3 | DUKE ENERGY CORPORATION | 6.03% | $98M |
| 4 | CONSTELLATION ENERGY CORPORATION. | 5.84% | $95M |
| 5 | WASTE MANAGEMENT, INC. | 5.15% | $83M |
| 6 | AMERICAN ELECTRIC POWER COMPANY, INC. | 4.39% | $71M |
| 7 | SEMPRA | 3.71% | $60M |
| 8 | Dominion Energy, Inc. | 3.29% | $53M |
| 9 | VISTRA CORP. | 3.20% | $52M |
| 10 | ENTERGY CORPORATION | 3.15% | $51M |
Holdings as of 2026-04-30 per the fund's most recent SEC N-PORT-P filing. Top 10 holdings make up 53.4% of net assets — a rough gauge of concentration risk (the higher this figure, the more the fund's return depends on a handful of names). To see how IDU's holdings overlap with other ETFs you own or are considering, check the Stock Overlap tool.
Which Funds Overlap With IDU
Holding two funds that own the same companies adds cost and complexity without adding much diversification. These tracked ETFs share the most names with IDU's top 10 — XLU overlaps most, holding 9 of the same companies as IDU's top 10 (48.2% of IDU's assets).
| ETF | Name | Shared Companies | IDU Weight | Examples |
|---|---|---|---|---|
| XLU | State Street Utilities Select Sector SPDR ETF | 9 | 48.2% | NEXTERA ENERGY, INC., THE SOUTHERN COMPANY, DUKE ENERGY CORPORATION… |
| VPU | Vanguard Utilities Index Fund ETF Shares | 9 | 48.2% | NEXTERA ENERGY, INC., THE SOUTHERN COMPANY, DUKE ENERGY CORPORATION… |
| FUTY | Fidelity MSCI Utilities Index ETF | 9 | 48.2% | NEXTERA ENERGY, INC., THE SOUTHERN COMPANY, DUKE ENERGY CORPORATION… |
| JXI | iShares Global Utilities ETF | 7 | 41.9% | NEXTERA ENERGY, INC., THE SOUTHERN COMPANY, DUKE ENERGY CORPORATION… |
| USMV | iShares MSCI USA Min Vol Factor ETF | 3 | 17.6% | THE SOUTHERN COMPANY, DUKE ENERGY CORPORATION, WASTE MANAGEMENT, INC. |
Compares the top 10 reported holdings of each fund, so it's a floor on true overlap — two S&P 500 trackers overlap ~100% even when only 10 names are listed. Use the Stock Overlap tool to search by individual company.
Market Backdrop
10-Year Treasury Yield: 4.77% (as of 2026-09-03) — The yield on 10-year US Treasury bonds — the standard "risk-free rate" benchmark used to contextualize this fund’s Sharpe ratio and returns.
CBOE Volatility Index (VIX): 14.32 (as of 2026-09-03) — A real-time gauge of expected S&P 500 volatility over the next 30 days — useful context for this fund’s own volatility label.
Federal Funds Rate: 3.63% (as of 2026-08-01) — The Federal Reserve’s target policy rate, which anchors short-term borrowing costs across the economy.
What IDU's Fees Cost You
IDU charges an expense ratio of 0.37% a year, deducted automatically from the fund's value. Small percentages compound into real money — adjust the figures below to see the impact on your own numbers.
Assumes a constant gross return and no additional contributions — a simplification, but it isolates exactly what the expense ratio costs. Try the full fee calculator to model contributions and compare any two funds.
IDU Dividend Income Estimator
IDU currently yields 2.08%. Enter an amount to see the income that implies, or set a monthly income target to see the investment it would take.
Based on the fund's current trailing yield, which varies with price and distributions — treat it as an estimate, not a guarantee. Yields are not adjusted for tax.
IDU Liquidity, Domicile & Tax Treatment
Liquidity: Quoted bid/ask spread is 2.51% and average daily volume is 122K/day. Tighter spreads and higher volume mean lower round-trip trading costs; this is a live-market snapshot and can widen during volatile sessions. AUM of $1.30B provides ample scale, supporting tight spreads and issuer commitment to keep the fund open.
Domicile & tax treatment: IDU is a US-domiciled, SEC-registered ('40 Act) exchange-traded fund. Dividends and capital gains distributions are reported to US investors on Form 1099-DIV, and the fund is not subject to the PFIC reporting or UCITS-specific rules that apply to Irish- or Luxembourg-domiciled funds. Non-US investors should note that US-domiciled ETFs are generally subject to 30% US withholding tax on dividends (unless reduced by treaty) and to US estate tax exposure on the position — Irish-domiciled UCITS ETFs tracking the same index often avoid both, which is why non-US residents frequently prefer the UCITS equivalent where one exists. This is general information, not tax advice — consult a tax professional for your situation.
IDU Performance History
| Period | Return |
|---|---|
| 1-Day | +0.07% |
| 1-Week | +0.87% |
| 1-Month | -0.62% |
| 3-Month | -1.78% |
| 6-Month | -6.43% |
| YTD | +1.17% |
| 1-Year | +4.81% |
| 3-Year | +49.24% |
How IDU Compares to Other Utilities ETFs
| Rank | Grade | Ticker | Name | 1-Year | Exp. Ratio | AUM |
|---|---|---|---|---|---|---|
| #231 | C |
XLU | State Street Utilities Select Sector SPDR ETF | +5.77% | 0.08% | $21.8B |
| #252 | C |
VPU | Vanguard Utilities Index Fund ETF Shares | +5.51% | 0.09% | $10.2B |
| #294 | C |
FUTY | Fidelity MSCI Utilities Index ETF | +5.60% | 0.084% | $2.25B |
| #313 | C |
JXI | iShares Global Utilities ETF | +12.89% | 0.37% | $299M |
| #354 | C |
IDU | iShares U.S. Utilities ETF | +4.81% | 0.37% | $1.30B |