Keep tabs on your favorite ETFs with a personalized weekly tracker. Create a Watchlist now →
RSPUvsIDUETF Comparison
Invesco S&P 500® Equal Weight Utilities ETF (RSPU) belongs to the US Large Cap segment. iShares U.S. Utilities ETF (IDU) is part of the US Utilities segment. Both ETFs have the same top 3 sector exposures: and Utilities. RSPU is more expensive with a Total Expense Ratio (TER) of 0.4%, versus 0.38% for IDU. RSPU is up 9.81% year-to-date (YTD) with -$8M in YTD flows. IDU performs worse with 8.67% YTD performance, and -$302M in YTD flows. Run a side-by-side ETF comparison of RSPU and IDU below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
RSPU vs IDU performance and flow charts
Performance
Cumulative Flows
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | RSPU IDU | +2.33%+2.59% | +10.53%+9.12% | +9.81%+8.67% | +24.80%+21.73% | +62.75%+57.33% | +85.69%+71.73% |
| Flows | RSPU IDU | +$6M+$35M | -$8M-$394M | -$8M-$302M | +$81M-$102M | +$28M+$95M | +$209M+$230M |
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | RSPU IDU | +14.23%+14.03% | +15.11%+14.87% | +15.75%+15.27% | +16.77%+16.39% |
| Max drawdown | RSPU IDU | -3.47%-3.18% | -8.37%-8.38% | -16.47%-17.26% | -21.97%-24.11% |
| Max drawdown duration | RSPU IDU | 11d11d | 33d120d | 364d337d | 610d610d |
RSPU | IDU | |
Last sale 3/13/2026 at 1:30 PM | $82.98 | $118.72 |
| Previous close 03/12/2026 | $82.14 | $117.69 |
| 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
RSPU | IDU | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
RSPU | IDU | |
|---|---|---|
| Last price | $82.98 | $118.72 |
| 1D performance | +1.02% | +0.88% |
| AuM | $543.48 M | $1.48 B |
| E/R | 0.4% | 0.38% |
RSPU | IDU | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | Invesco | iShares |
| Benchmark | S&P 500 Equal Weight Utilities & Telecommunications Index | Russell 1000 Utilities RIC 22.5/45 Capped Index |
| N° of holdings | 31 | 42 |
| Asset class | Equities | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | November 1, 2006 | June 12, 2000 |
| 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 RSPU and IDU ETFs performed in 2026?
As of March 12, 2026, RSPU is up 9.81% year-to-date (YTD), while IDU has returned 8.67%. That puts RSPU better performer ahead so far this year.
Which ETF is attracting more investor money: RSPU or IDU?
Year-to-date, the RSPU ETF saw -$8M in flows, compared to -$302M for IDU.
Which ETF is more volatile: RSPU or IDU?
Over the past year, RSPU had a volatility of 15.11%, while IDU experienced 14.87%.
Which ETF is bigger: RSPU or IDU?
As of March 12, 2026, RSPU holds $543.48 M in assets under management (AUM), while IDU manages $1.48 B.
What sectors do the RSPU and IDU ETFs invest in?
RSPU leans toward sectors like Utilities. Meanwhile, IDU focuses on Utilities and Industrials.
What are the top holdings of the RSPU ETF and IDU ETF?
RSPU top holdings include PPL, CONSOLIDATED EDISON and PINNACLE WEST. IDU holds in its top three: NEXTERA ENERGY, SOUTHERN and DUKE ENERGY.
Which ETF is more diversified: RSPU or IDU?
RSPU holds 31 securities with 50.04% of its assets in the top 15. IDU has 45 securities and a top 15 weight of 66.43%.
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.
