IDUvsXLUETF Comparison
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iShares U.S. Utilities ETF (IDU) and State Street Utilities Select Sector SPDR ETF (XLU) belong to the same industry segment: US Utilities. IDU's top 3 sector exposures are Utilities and Industrials. In contrast, XLU's top sector exposures are Utilities IDU is more expensive with a Total Expense Ratio (TER) of 0.38%, versus 0.08% for XLU. IDU is up 4.53% year-to-date (YTD) with -$295M in YTD flows. XLU performs better with 5.05% YTD performance, and +$75M in YTD flows. Run a side-by-side ETF comparison of IDU and XLU below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
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IDU vs XLU performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 06/12/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IDU XLU | -1.24%-1.49% | -3.81%-3.60% | +4.53%+5.05% | +9.48%+11.81% | +47.52%+47.26% | +54.93%+56.43% |
| Flows | IDU XLU | +$29M+$84M | +$7M-$794M | -$295M+$75M | -$177M+$2.38B | +$86M+$2.13B | +$237M+$6.98B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IDU XLU | +17.48%+18.51% | +13.99%+14.79% | +15.47%+16.45% | +16.61%+17.40% |
| Max drawdown | IDU XLU | -8.43%-8.64% | -9.16%-9.19% | -16.72%-17.29% | -24.11%-25.30% |
| Max drawdown duration | IDU XLU | 64d64d | 103d120d | 247d275d | 610d688d |
Trading data
IDU | XLU | |
Last sale 6/12/2026 at 1:30 PM | $112.58 | $44.53 |
| Previous close 06/11/2026 | $111.38 | $44.05 |
| Consolidated volume 06/11/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of May 29, 2026
1-year trailing difference
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IDU | XLU | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 6/12/2026 at 1:30 PM
Live
Closed
IDU | XLU | |
|---|---|---|
| Last price | $112.58 | $44.53 |
| 1D performance | +1.08% | +1.09% |
| AuM | $1.42 B | $22.73 B |
| E/R | 0.38% | 0.08% |
Characteristics
IDU | XLU | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | iShares | State Street Investment Management |
| Benchmark | Russell 1000 Utilities RIC 22.5/45 Capped Index | S&P Utilities Select Sector Index |
| N° of holdings | 42 | 31 |
| Asset class | Equities | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | June 12, 2000 | December 16, 1998 |
| ESG | No | No |
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Exposure
Countries
IDU
USA
99.69%
Other
0.31%
XLU
USA
99.71%
Other
0.29%
Sectors
IDU
Utilities
89.63%
Industrials
8.9%
Other
1.46%
XLU
Utilities
99.71%
Other
0.29%
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Diversification
IDU
Total weight of top 15 holdings out of 15
66.45%
XLU
Total weight of top 15 holdings out of 15
72.62%
Top 15 holdings
Data as of April 30, 2026
IDU
NEXTERA ENERGY
12.22%
SOUTHERN
6.38%
DUKE ENERGY
6.03%
CONSTELLATION ENERGY CORP
5.84%
WASTE MANAGEMENT
5.15%
AMERICAN ELECTRIC POWER
4.39%
SEMPRA ENERGY
3.71%
DOMINION ENERGY
3.29%
VISTRA CORP
3.20%
ENTERGY
3.15%
XCEL ENERGY
2.94%
EXELON CORP
2.78%
REPUBLIC SVCS
2.54%
PUBLIC SRVCE ENT
2.44%
CONSOLIDATED EDISON
2.40%
XLU
NEXTERA ENERGY
14.03%
SOUTHERN
7.33%
DUKE ENERGY
6.93%
CONSTELLATION ENERGY CORP
6.71%
AMERICAN ELECTRIC POWER
5.10%
SEMPRA ENERGY
4.27%
DOMINION ENERGY
3.79%
ENTERGY
3.65%
VISTRA CORP
3.46%
XCEL ENERGY
3.38%
EXELON CORP
3.24%
PUBLIC SRVCE ENT
2.81%
CONSOLIDATED EDISON
2.77%
WEC ENERGY GROUP INC
2.64%
PG&E
2.51%
Frequently asked questions about IDU and XLU
How have the IDU and XLU ETFs performed in 2026?
As of June 12, 2026, IDU is up 4.53% year-to-date (YTD), while XLU has returned 5.05%. That puts XLU better performer ahead so far this year.
Which ETF is attracting more investor money: IDU or XLU?
Year-to-date, the IDU ETF saw -$295M in flows, compared to +$75M for XLU.
Which ETF is more volatile: IDU or XLU?
Over the past year, IDU had a volatility of 13.99%, while XLU experienced 14.79%.
Which ETF is bigger: IDU or XLU?
As of June 12, 2026, IDU holds $1.42 B in assets under management (AUM), while XLU manages $22.73 B.
What sectors do the IDU and XLU ETFs invest in?
IDU leans toward sectors like Utilities and Industrials. Meanwhile, XLU focuses on Utilities.
What are the top holdings of the IDU ETF and XLU ETF?
IDU top holdings include NEXTERA ENERGY, SOUTHERN and DUKE ENERGY. XLU holds in its top three: NEXTERA ENERGY, SOUTHERN and DUKE ENERGY.
Which ETF is more diversified: IDU or XLU?
IDU holds 45 securities with 66.45% of its assets in the top 15. XLU has 31 securities and a top 15 weight of 72.62%.
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