ETF comparison
IDU vs XLU
Both Utilities.
iShares U.S. Utilities ETF · State Street Utilities Select Sector SPDR ETF
Holdings overlap
31 positions appear in both funds. Buying equal dollars of IDU and XLU would leave roughly 85.6% of each dollar exposed to the same underlying securities.
Unmatched is the part of a fund's weight the other fund doesn't match: names only it holds, plus any extra weight it puts in names both funds hold.
Side by side
Sub-score comparison
Tracking quality isn't part of the composite — see what we don't score for why.
Cost difference
XLU is 29 bps cheaper than IDU. On a $100,000 position that's about $290/yr more in fees for IDU.
Fee figure is the annual expense charged on $100,000. To see how the gap compounds over a multi-decade holding period, open the cost calculator pre-filled with IDU vs XLU.
Top shared holdings
31 shared in total| # | Holding | In IDU | In XLU | Overlap |
|---|---|---|---|---|
| 1 | NEXTERA ENERGY, INC. | 11.20% | 12.89% | 11.20% |
| 2 | THE SOUTHERN COMPANY | 6.59% | 7.60% | 6.59% |
| 3 | DUKE ENERGY CORPORATION | 6.03% | 6.95% | 6.03% |
| 4 | CONSTELLATION ENERGY CORPORATION. | 5.20% | 5.59% | 5.20% |
| 5 | AMERICAN ELECTRIC POWER COMPANY, INC. | 4.30% | 5.24% | 4.30% |
| 6 | Dominion Energy, Inc. | 3.76% | 4.23% | 3.76% |
| 7 | SEMPRA | 3.57% | 4.27% | 3.57% |
| 8 | VISTRA CORP. | 3.08% | 3.54% | 3.08% |
| 9 | ENTERGY CORPORATION | 3.04% | 3.70% | 3.04% |
| 10 | Xcel Energy Inc. | 3.01% | 3.53% | 3.01% |
| 11 | EXELON CORPORATION | 2.90% | 3.36% | 2.90% |
| 12 | CONSOLIDATED EDISON, INC. | 2.48% | 2.87% | 2.48% |
Only in IDU
14 total- WASTE MANAGEMENT, INC. 5.21%
- REPUBLIC SERVICES, INC. 2.59%
- CLEAN HARBORS, INC. 0.98%
- TALEN ENERGY CORP 0.93%
- Essential Utilities, Inc. 0.70%
- GFL ENVIRONMENTAL INC. 0.66%
- OGE ENERGY CORP. 0.60%
- IDACORP, INC. 0.49%
- UGI CORPORATION 0.48%
- NATIONAL FUEL GAS COMPANY 0.48%
Only in XLU
0 totalEvery XLU position is also held by IDU.
Related comparisons
More comparisons with IDU
More comparisons with XLU
Percentages are holdings overlap with the named fund.
Open IDU or XLU at a brokerage
Both funds trade commission-free at major US brokerages.
Affiliate links — opening an account through these earns PlainIndex a one-time referral. Scoring is computed before any affiliate consideration; see our methodology and funding disclosure.
Holdings overlap is the sum of min(weight_a, weight_b) over positions
matched on ISIN (CUSIP fallback). Methodology: see
/methodology/.
Comparing two funds doesn't endorse swapping one for the other. Tax-lot history, account type, and personal goals matter — PlainIndex publishes data and methodology, not investment advice.