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. RSPM's top 1 sector exposures are Non-Energy Materials. In contrast, IYM's top sector exposures are Non-Energy Materials, Industrials and Non-Corporate. RSPM is more expensive with a Total Expense Ratio (TER) of 0.4%, versus 0.37% for IYM. RSPM is up 16% year-to-date (YTD) with +$6M in YTD flows. IYM performs better with 21.92% YTD performance, and +$368M 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 09/11/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | RSPM IYM | -4.33%-1.83% | +0.78%+1.28% | +16.00%+21.92% | +18.16%+25.57% | +29.78%+48.89% | +29.27%+55.46% |
| Flows | RSPM IYM | +$5M+$194M | +$3M-$66M | +$6M+$368M | -$6M+$450M | -$147M+$259M | -$284M-$7M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | RSPM IYM | +17.29%+19.02% | +18.52%+20.50% | +18.85%+18.67% | +20.14%+20.58% |
| Max drawdown | RSPM IYM | -5.38%-8.61% | -12.20%-13.67% | -27.09%-23.58% | -27.09%-29.91% |
| Max drawdown duration | RSPM IYM | 19d52d | 177d102d | 470d352d | 470d709d |
Trading data
RSPM | IYM | |
Last sale 9/11/2026 at 1:30 PM | $39.16 | $186.56 |
| Previous close 09/10/2026 | $39.08 | $186.03 |
| Consolidated volume 09/10/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of August 31, 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 9/11/2026 at 1:30 PM
Live
Closed
RSPM | IYM | |
|---|---|---|
| Last price | $39.16 | $186.56 |
| 1D performance | +0.20% | +0.28% |
| AuM | $182.37 M | $1.18 B |
| E/R | 0.4% | 0.37% |
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 | 26 | 40 |
| 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
84.21%
Other
15.79%
IYM
USA
77.14%
United Kingdom
22.79%
Other
0.07%
Sectors
RSPM
Non-Energy Materi.
100%
Other
0%
IYM
Non-Energy Materi.
94.77%
Other
5.23%
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Diversification
RSPM
Total weight of top 15 holdings out of 15
62.02%
IYM
Total weight of top 15 holdings out of 15
78.06%
Top 15 holdings
Data as of July 31, 2026
RSPM
International Paper Co.
4.84%
Smurfit WestRock Plc
4.47%
Corteva, Inc.
4.39%
Ball Corp.
4.35%
Amcor Plc
4.34%
CF Industries Holdings, Inc.
4.21%
Packaging Corporation of America
4.16%
The Mosaic Co.
4.12%
The Sherwin-Williams Co.
4.09%
Ecolab, Inc.
3.99%
International Flavors & Fragrances, Inc.
3.87%
Avery Dennison Corp.
3.87%
Air Products & Chemicals, Inc.
3.84%
Vulcan Materials Co.
3.76%
Martin Marietta Materials, Inc.
3.72%
IYM
Linde Plc
21.20%
Newmont Corp.
9.29%
Freeport-McMoRan, Inc.
8.27%
Ecolab, Inc.
6.35%
Air Products & Chemicals, Inc.
4.99%
Nucor Corp.
4.43%
Fastenal Co.
4.29%
Anglogold Ashanti Plc
3.46%
Steel Dynamics, Inc.
3.08%
Carpenter Technology Corp.
2.47%
International Paper Co.
2.31%
Reliance, Inc.
2.09%
International Flavors & Fragrances, Inc.
2.08%
CF Industries Holdings, Inc.
1.97%
RBC Bearings, Inc.
1.79%
Frequently asked questions about RSPM and IYM
How have the RSPM and IYM ETFs performed in 2026?
As of September 11, 2026, RSPM is up 16% year-to-date (YTD), while IYM has returned 21.92%. 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 +$6M in flows, compared to +$368M for IYM.
Which ETF is more volatile: RSPM or IYM?
Over the past year, RSPM had a volatility of 18.52%, while IYM experienced 20.5%.
Which ETF is bigger: RSPM or IYM?
As of September 11, 2026, RSPM holds $182.37 M in assets under management (AUM), while IYM manages $1.18 B.
What sectors do the RSPM and IYM ETFs invest in?
RSPM leans toward sectors like Non-Energy Materials. Meanwhile, IYM focuses on Non-Energy Materials.
What are the top holdings of the RSPM ETF and IYM ETF?
RSPM top holdings include International Paper Co., Smurfit WestRock Plc and Corteva, Inc.. IYM holds in its top three: Linde Plc, Newmont Corp. and Freeport-McMoRan, Inc..
Which ETF is more diversified: RSPM or IYM?
RSPM holds 26 securities with 62.02% of its assets in the top 15. IYM has 40 securities and a top 15 weight of 78.06%.
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