IDU vs RSPU
iShares U.S. Utilities ETF against Invesco S&P 500 Equal Weight Utilities ETF: cost, size, returns, what they hold and how much of it is the same.
Overlap by weight
67%
31 shared positions
Fee gap
3 bp
IDU is cheaper
1-year return gap
1.0 pts
RSPU is ahead
Larger fund
IDU
$1.4B
Side by side
| IDU | RSPU | |
|---|---|---|
| Fund | iShares U.S. Utilities ETF | Invesco S&P 500 Equal Weight Utilities ETF |
| Issuer | iShares | Invesco |
| Category | Utilities | Utilities |
| Expense ratio | 0.37% | 0.40% |
| Assets | $1.4B | $492M |
| Average daily dollar volume | $21M | $5.3M |
| Listed | Jun 12, 2000 | Nov 1, 2006 |
| FrenzyCap score | 65 | 55 |
| 1-month return | −2.4% | −2.5% |
| 3-month return | −9.0% | −10.1% |
| Year to date | −2.5% | −1.9% |
| 1-year return | −8.0% | −7.0% |
| 30-day volatility | 15.2% | 15.7% |
| Worst drawdown, 1 year | −16.7% | −17.5% |
| Trailing 12-month yield | 2.44% | 2.79% |
| Holdings | 50 | 33 |
| Top 10 weight | 52.2% | 33.2% |
| Look-through P/E | 20.1 | 17.2 |
| Holdings vs fair value | −4.3% | +1.1% |
| Holdings above 200-day average | 17% | 10% |
| Net flow, latest 3 reported months | −$82M thru Jul 2026 | −$25M thru Jul 2026 |
| 30-day implied volatility | 17.1% | 16.6% |
| Holdings as of | as of Oct 8, 2026issuer data | as of Oct 8, 2026issuer data |
Returns are price returns and exclude distributions. Flows are each fund's own latest reported months and may not cover the same period.
Largest shared holdings
85% of IDU · 100% of RSPU| Holding | IDU | RSPU |
|---|---|---|
| VST | 3.45% | 3.45% |
| AEP | 4.38% | 3.28% |
| SO | 6.52% | 3.26% |
| DUK | 5.98% | 3.24% |
| CEG | 6.01% | 3.24% |
| SRE | 3.44% | 3.17% |
| D | 3.57% | 3.17% |
| ETR | 3.14% | 3.20% |
| NEE | 10.61% | 3.13% |
| XEL | 3.01% | 3.25% |
| EXC | 2.81% | 3.19% |
| ED | 2.57% | 3.30% |
| PEG | 2.36% | 3.31% |
| WEC | 2.22% | 3.26% |
| AEE | 1.85% | 3.20% |
| PCG | 1.83% | 3.00% |
| ATO | 1.74% | 3.22% |
| DTE | 1.73% | 3.15% |
| PPL | 1.69% | 3.30% |
| AWK | 1.67% | 3.05% |
| CNP | 1.65% | 3.23% |
| ES | 1.62% | 3.12% |
| FE | 1.62% | 3.24% |
| NRG | 1.42% | 3.08% |
| EIX | 1.36% | 3.21% |
Sector mix of the stock holdings
| Sector | IDU | RSPU | Gap |
|---|---|---|---|
| Utilities | 99.5% | 100.0% | −0.5% |
| Materials | 0.3% | 0.0% | +0.3% |
More: full overlap table · IDU holdings · RSPU holdings
Fund data comes from each fund's SEC filings and issuer disclosures and is shown with the date it is as of. SEC portfolio and flow filings become public about 60 days after the period they cover. Nothing here is investment advice; see Terms.