IYMvsRSPMETF Comparison
VS
iShares U.S. Basic Materials ETF (IYM) and Invesco S&P 500® Equal Weight Materials ETF (RSPM) belong to the same industry segment: US Materials. IYM's top 3 sector exposures are Non-Energy Materials, Industrials and Non-Corporate. In contrast, RSPM's top sector exposures are Non-Energy Materials. IYM is less expensive with a Total Expense Ratio (TER) of 0.37%, versus 0.4% for RSPM. IYM is up 18.97% year-to-date (YTD) with +$484M in YTD flows. RSPM performs worse with 17.82% YTD performance, and +$2M in YTD flows. Run a side-by-side ETF comparison of IYM and RSPM 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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IYM vs RSPM performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/27/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IYM RSPM | +0.89%+4.58% | +2.28%+0.81% | +18.97%+17.82% | +24.86%+21.65% | +57.14%+43.38% | +48.94%+29.80% |
| Flows | IYM RSPM | +$89M-$1M | +$72M-$8M | +$484M+$2M | +$610M-$5M | +$380M-$147M | +$302M-$265M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IYM RSPM | +18.01%+15.56% | +20.41%+18.37% | +18.62%+18.69% | +20.48%+20.07% |
| Max drawdown | IYM RSPM | -9.34%-9.80% | -13.67%-12.20% | -23.58%-27.09% | -29.91%-27.09% |
| Max drawdown duration | IYM RSPM | 63d65d | 102d177d | 352d470d | 709d470d |
Trading data
IYM | RSPM | |
Last sale 10/28/2026 at 1:30 PM | $182.09 | $39.52 |
| Previous close 10/27/2026 | $181.47 | $39.54 |
| Consolidated volume 10/27/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of September 30, 2026
1-year trailing difference
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IYM | RSPM | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 10/28/2026 at 1:30 PM
Live
Closed
IYM | RSPM | |
|---|---|---|
| Last price | $182.09 | $39.52 |
| 1D performance | +0.34% | -0.05% |
| AuM | $1.27 B | $180.01 M |
| E/R | 0.37% | 0.4% |
Characteristics
IYM | RSPM | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | iShares | Invesco |
| Benchmark | Russell 1000 Basic Materials RIC 22.5/45 Capped Gross Index | S&P 500 Equal Weight Materials Index |
| N° of holdings | 40 | 25 |
| Asset class | Equities | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | June 12, 2000 | November 1, 2006 |
| ESG | No | No |
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Exposure
Countries
IYM
USA
79.26%
United Kingdom
20.68%
Other
0.06%
RSPM
USA
83.95%
United Kingdom
7.02%
Other
9.02%
Sectors
IYM
Non-Energy Materi.
94.98%
Other
5.02%
RSPM
Non-Energy Materi.
100%
Other
0%
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Diversification
IYM
Total weight of top 15 holdings out of 15
78.14%
RSPM
Total weight of top 15 holdings out of 15
65.13%
Top 15 holdings
Data as of August 31, 2026
IYM
Linde Plc
19.08%
Newmont Corp.
11.44%
Freeport-McMoRan, Inc.
9.23%
Ecolab, Inc.
6.02%
Air Products & Chemicals, Inc.
4.81%
Anglogold Ashanti Plc
4.41%
Fastenal Co.
4.24%
Nucor Corp.
4.02%
Steel Dynamics, Inc.
2.65%
Carpenter Technology Corp.
2.18%
Royal Gold, Inc.
2.12%
International Flavors & Fragrances, Inc.
2.11%
Coeur Mining, Inc.
2.04%
CF Industries Holdings, Inc.
1.90%
International Paper Co.
1.90%
RSPM
Newmont Corp.
5.21%
Freeport-McMoRan, Inc.
4.62%
International Paper Co.
4.58%
Smurfit WestRock Plc
4.57%
Amcor Plc
4.46%
The Mosaic Co.
4.38%
International Flavors & Fragrances, Inc.
4.28%
Ball Corp.
4.23%
CF Industries Holdings, Inc.
4.21%
Avery Dennison Corp.
4.18%
The Sherwin-Williams Co.
4.15%
Packaging Corporation of America
4.11%
Ecolab, Inc.
4.07%
Corteva, Inc.
4.05%
Air Products & Chemicals, Inc.
4.04%
Frequently asked questions about IYM and RSPM
How have the IYM and RSPM ETFs performed in 2026?
As of October 27, 2026, IYM is up 18.97% year-to-date (YTD), while RSPM has returned 17.82%. That puts IYM better performer ahead so far this year.
Which ETF is attracting more investor money: IYM or RSPM?
Year-to-date, the IYM ETF saw +$484M in flows, compared to +$2M for RSPM.
Which ETF is more volatile: IYM or RSPM?
Over the past year, IYM had a volatility of 20.41%, while RSPM experienced 18.37%.
Which ETF is bigger: IYM or RSPM?
As of October 27, 2026, IYM holds $1.27 B in assets under management (AUM), while RSPM manages $180.01 M.
What sectors do the IYM and RSPM ETFs invest in?
IYM leans toward sectors like Non-Energy Materials. Meanwhile, RSPM focuses on Non-Energy Materials.
What are the top holdings of the IYM ETF and RSPM ETF?
IYM top holdings include Linde Plc, Newmont Corp. and Freeport-McMoRan, Inc.. RSPM holds in its top three: Newmont Corp., Freeport-McMoRan, Inc. and International Paper Co..
Which ETF is more diversified: IYM or RSPM?
IYM holds 40 securities with 78.14% of its assets in the top 15. RSPM has 25 securities and a top 15 weight of 65.13%.
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