RSPMvsIYMETF Comparison
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Invesco S&P 500® Equal Weight Materials ETF (RSPM) and iShares U.S. Basic Materials ETF (IYM) belong to the same industry segment: US Materials. Both ETFs have the same top 3 sector exposures: and Materials. RSPM is more expensive with a Total Expense Ratio (TER) of 0.4%, versus 0.38% for IYM. RSPM is up 16.15% year-to-date (YTD) with +$2M in YTD flows. IYM performs better with 21.03% YTD performance, and +$755M in YTD flows. Run a side-by-side ETF comparison of RSPM and IYM 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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RSPM vs IYM performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 06/18/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | RSPM IYM | +3.11%+3.39% | +5.57%+8.70% | +16.15%+21.03% | +24.40%+36.88% | +31.71%+50.46% | +35.23%+58.25% |
| Flows | RSPM IYM | -$275K-$174M | -$4M+$140M | +$2M+$755M | -$19M+$822M | -$180M+$455M | -$439M+$430M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | RSPM IYM | +20.62%+23.16% | +18.80%+19.62% | +18.64%+18.33% | +20.08%+20.47% |
| Max drawdown | RSPM IYM | -7.27%-6.32% | -12.20%-13.67% | -27.09%-23.58% | -27.09%-29.91% |
| Max drawdown duration | RSPM IYM | 43d30d | 127d102d | 470d352d | 470d709d |
Trading data
RSPM | IYM | |
Last sale 6/18/2026 at 1:30 PM | $39.48 | $185.34 |
| Previous close 06/18/2026 | $39.65 | $187.01 |
| Consolidated volume 06/18/2026 | ||
| 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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RSPM | IYM | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 6/18/2026 at 1:30 PM
Live
Closed
RSPM | IYM | |
|---|---|---|
| Last price | $39.48 | $185.34 |
| 1D performance | -0.43% | -0.89% |
| AuM | $179.93 M | $1.58 B |
| E/R | 0.4% | 0.38% |
Characteristics
RSPM | IYM | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | Invesco | iShares |
| Benchmark | S&P 500 Equal Weight Materials Index | Russell 1000 Basic Materials RIC 22.5/45 Capped Gross Index |
| N° of holdings | 24 | 36 |
| Asset class | Equities | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | November 1, 2006 | June 12, 2000 |
| ESG | No | No |
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Exposure
Countries
RSPM
USA
80.92%
Ireland
11.71%
Other
7.38%
IYM
USA
74.38%
Ireland
19.89%
Other
5.73%
Sectors
RSPM
Materials
89.05%
Other
10.95%
IYM
Materials
65.79%
Industrials
9.14%
Other
25.07%
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Diversification
RSPM
Total weight of top 15 holdings out of 15
61.26%
IYM
Total weight of top 15 holdings out of 15
76.87%
Top 15 holdings
Data as of April 30, 2026
RSPM
NUCOR
4.68%
STEEL DYNAMICS
4.57%
ALBEMARLE
4.44%
CRH PLC
4.19%
DOW INC
4.14%
VULCAN MATERIALS
4.09%
AIR PRODUCTS AND CHEMICALS
4.07%
IE000S9YS762
3.96%
PPG INDUSTRIES
3.96%
LYONDELLBASELL INDUSTRIES
3.94%
SHERWIN WILLIAMS
3.89%
INTL FLAV & FRAG U
3.86%
CF INDUSTRIES HOLDINGS
3.85%
MARTIN MARIETTA
3.81%
DUPONT DE NEMOURS INC
3.80%
IYM
IE000S9YS762
19.89%
NEWMONT CORP
10.51%
FREEPORT-MCMORAN INC
7.25%
ECOLAB
5.80%
AIR PRODUCTS AND CHEMICALS
4.75%
NUCOR
4.43%
FASTENAL
3.88%
GB00BRXH2664
3.55%
STEEL DYNAMICS
3.38%
ALBEMARLE
2.57%
CARPENTER TECHNOLOGY
2.29%
ROYAL GOLD
2.18%
CF INDUSTRIES HOLDINGS
2.15%
LYONDELLBASELL INDUSTRIES
2.13%
RELIANCE STEEL
2.11%
Frequently asked questions about RSPM and IYM
How have the RSPM and IYM ETFs performed in 2026?
As of June 18, 2026, RSPM is up 16.15% year-to-date (YTD), while IYM has returned 21.03%. That puts IYM better performer ahead so far this year.
Which ETF is attracting more investor money: RSPM or IYM?
Year-to-date, the RSPM ETF saw +$2M in flows, compared to +$755M for IYM.
Which ETF is more volatile: RSPM or IYM?
Over the past year, RSPM had a volatility of 18.8%, while IYM experienced 19.62%.
Which ETF is bigger: RSPM or IYM?
As of June 18, 2026, RSPM holds $179.93 M in assets under management (AUM), while IYM manages $1.58 B.
What sectors do the RSPM and IYM ETFs invest in?
RSPM leans toward sectors like Materials. Meanwhile, IYM focuses on Materials and Industrials.
What are the top holdings of the RSPM ETF and IYM ETF?
RSPM top holdings include NUCOR, STEEL DYNAMICS and ALBEMARLE. IYM holds in its top three: IE000S9YS762, NEWMONT CORP and FREEPORT-MCMORAN INC.
Which ETF is more diversified: RSPM or IYM?
RSPM holds 26 securities with 61.26% of its assets in the top 15. IYM has 39 securities and a top 15 weight of 76.87%.
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