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IDU · iShares U.S. Utilities ETF

Equity fundTracks an index0.37% fee$1.4bnSince Jan 4, 2010Fund page at the issuer ↗SEC filings ↗
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IDU tracks an index and returned −6.5% over the past year.

−6.5%
Total return, 1 year
0.37%
Expense ratio
50
Holdings
−14.3%
Below its high
WindowTotal returnS&P 500Gap to S&P 500Gap to Nasdaq-100
3M Jul 2 – Oct 2, 2026−11.6%+3.6%−15.2 pts−16.9 pts
6M Apr 2 – Oct 2, 2026−12.4%+17.9%−30.3 pts−40.8 pts
1Y Oct 2, 2025 – Oct 2, 2026−6.5%+16.2%−22.7 pts−30.8 pts
3Y Oct 3, 2023 – Oct 2, 2026+53.8%+89.3%−35.5 pts−61.0 pts
Since listing Jan 4, 2010 – Oct 2, 2026+348.4%+813.0%−464.6 pts−1413.5 pts

IDU over each window to Oct 2, 2026. Every figure is an ETFIQ calculation. Source: ETFIQ.

IDU top ten by weight, 52.1% of its 50 equity positions, from the holdings published by its issuer for Oct 1, 2026. An index fund holds what the index holds, so this is the index. Source: the issuer’s own daily file.

NEXTERA ENERGY NEE 10.84%
SOUTHERN SO 6.54%
DUKE ENERGY CORP DUK 6.03%
CONSTELLATION ENERGY CORP CEG 5.65%
WASTE MANAGEMENT INC WM 5.11%
AMERICAN ELECTRIC POWER INC AEP 4.44%
DOMINION ENERGY D 3.64%
SEMPRA SRE 3.47%
VISTRA VST 3.20%
ENTERGY CORP ETR 3.19%
Holdings, the issuer’s own daily file ↗
Head to head
Funds near this one
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In plain words

IDU tracks an index. Over the year to Oct 2, 2026 it returned −6.5% with distributions reinvested, against +16.2% for the S&P 500 and +24.3% for the Nasdaq-100. The prospectus expense ratio is 0.37% a year. By its holdings published by its issuer for Oct 1, 2026, 94% of the fund by weight is stocks the S&P 500 also holds, across 50 positions, with the top ten at 52.1%. It sat 14.3% below its high of Feb 27, 2026 on Oct 2, 2026.
What it tracksnot read by ETFIQ
Fund typeEquity fund
Category (ETFIQ)Stocks · Utilities
Expense ratio (485BPOS XBRL, Aug 21, 2026)0.37%
Price$101.73
Listed sinceJan 4, 2010
Net assets (the issuer’s own daily fund list, as of Oct 2, 2026)$1.4bn
Below its high (ETFIQ)−14.3%
Holdings50
Top ten weight52.1%
Holdings published for (the issuer’s daily file)Oct 1, 2026
Already in the S&P 500, by weight (ETFIQ)93.6%
Active share vs the S&P 500 (ETFIQ)97.6%
Already in the Nasdaq-100, by weight (ETFIQ)15.4%
ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.

Questions people ask about IDU

How has IDU performed?
Over the year to Oct 2, 2026, IDU returned −6.5% with distributions reinvested, against +16.2% for the S&P 500. Over three years the figure is +53.8%.
What does IDU cost?
The prospectus expense ratio is 0.37% a year.
What does IDU hold?
50 positions as published by its issuer for Oct 1, 2026, with the top ten at 52.1% of the fund. 94% of its weight is in stocks the S&P 500 also holds.
How far is IDU below its high?
14.3% below its high of Feb 27, 2026, measured on the reinvested series to Oct 2, 2026.
Sources and dates
Prices, IDU and S&P 500Tiingo end-of-day · Oct 2, 2026
Fee, 0.37%Prospectus filing with the expense ratio (SEC) ↗
Net assets, $1.4bnThe issuer’s own daily fund list · Oct 2, 2026
HoldingsHoldings, the issuer’s own daily file · Oct 1, 2026 ↗
IssueriShares page for IDU ↗
All fund filingsFund filings on SEC EDGAR ↗
SourceiShares’s own site ↗

ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.

ETFIQ covers core, leveraged and inverse, buffer, thematic, option-income, alternatives and spot crypto ETFs. This fund is here because the other funds here are measured against it and portfolios hold it. ETFIQ is an independent publisher and makes no recommendations. Standards and sources

How these figures are computed →Standards and sources →Open data →
Cite this page

ETFIQ, IDU, core fund, data as of Oct 2, 2026. https://etfiq.com/funds/idu

Free to use with attribution; the underlying files are at Open data.

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