Keep tabs on your favorite ETFs with a personalized weekly tracker. Create a Watchlist now →
IDUvsRSPUETF Comparison
iShares U.S. Utilities ETF (IDU) belongs to the US Utilities segment. Invesco S&P 500® Equal Weight Utilities ETF (RSPU) is part of the US Large Cap segment. IDU's top 3 sector exposures are Utilities and Industrials. In contrast, RSPU's top sector exposures are Utilities IDU is less expensive with a Total Expense Ratio (TER) of 0.38%, versus 0.4% for RSPU. IDU is up 9.62% year-to-date (YTD) with -$296M in YTD flows. RSPU performs better with 10.95% YTD performance, and -$7M in YTD flows. Run a side-by-side ETF comparison of IDU and RSPU below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
IDU vs RSPU performance and flow charts
Performance
Cumulative Flows
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IDU RSPU | +0.84%+0.66% | +9.11%+10.68% | +9.62%+10.95% | +22.54%+25.51% | +58.70%+64.43% | +70.79%+84.21% |
| Flows | IDU RSPU | +$41M+$7M | -$394M-$3M | -$296M-$7M | -$91M+$82M | +$101M+$29M | +$236M+$211M |
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IDU RSPU | +14.03%+14.26% | +14.89%+15.14% | +15.27%+15.75% | +16.39%+16.76% |
| Max drawdown | IDU RSPU | -3.18%-3.47% | -8.38%-8.37% | -17.26%-16.47% | -24.11%-21.97% |
| Max drawdown duration | IDU RSPU | 12d12d | 120d33d | 337d364d | 610d610d |
IDU | RSPU | |
Last sale 3/13/2026 at 1:30 PM | $118.72 | $82.98 |
| Previous close 03/12/2026 | $117.69 | $82.14 |
| Consolidated volume 03/12/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Create an account to view replication metrics
IDU | RSPU | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
IDU | RSPU | |
|---|---|---|
| Last price | $118.72 | $82.98 |
| 1D performance | +0.88% | +1.02% |
| AuM | $1.50 B | $549.93 M |
| E/R | 0.38% | 0.4% |
IDU | RSPU | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | iShares | Invesco |
| Benchmark | Russell 1000 Utilities RIC 22.5/45 Capped Index | S&P 500 Equal Weight Utilities & Telecommunications Index |
| N° of holdings | 42 | 31 |
| Asset class | Equities | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | June 12, 2000 | November 1, 2006 |
| ESG | No | No |
Countries
Sectors
Diversification
Total weight of top 15 holdings out of 15
Total weight of top 15 holdings out of 15
Top 15 holdings
How have the IDU and RSPU ETFs performed in 2026?
As of March 13, 2026, IDU is up 9.62% year-to-date (YTD), while RSPU has returned 10.95%. That puts RSPU better performer ahead so far this year.
Which ETF is attracting more investor money: IDU or RSPU?
Year-to-date, the IDU ETF saw -$296M in flows, compared to -$7M for RSPU.
Which ETF is more volatile: IDU or RSPU?
Over the past year, IDU had a volatility of 14.89%, while RSPU experienced 15.14%.
Which ETF is bigger: IDU or RSPU?
As of March 13, 2026, IDU holds $1.50 B in assets under management (AUM), while RSPU manages $549.93 M.
What sectors do the IDU and RSPU ETFs invest in?
IDU leans toward sectors like Utilities and Industrials. Meanwhile, RSPU focuses on Utilities.
What are the top holdings of the IDU ETF and RSPU ETF?
IDU top holdings include NEXTERA ENERGY, SOUTHERN and DUKE ENERGY. RSPU holds in its top three: PPL, CONSOLIDATED EDISON and PINNACLE WEST.
Which ETF is more diversified: IDU or RSPU?
IDU holds 45 securities with 66.43% of its assets in the top 15. RSPU has 31 securities and a top 15 weight of 50.04%.
Tony's ETF Buyers Guide: Equal-Weight ETFs
Utilities Sector: From Laggard to Leader Amidst Expected Rate Cuts
Tony's ETF Buyer's Guide: Sector ETFs (Vanguard versus State Street SPDR)
Sector ETFs that could outperform during a recession
Active Trader Report: Use of Leveraged & Inverse ETFs Way Up
Direxion partnered with Compound Insights and Vanda to explore what’s driving the evolution of active trading — and how active traders are using leveraged and inverse funds across equities, single stocks, commodities, and volatility.
