IYMvsRSPMETF Comparison
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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 and Industrials. In contrast, RSPM's top sector exposures are Non-Energy Materials IYM is less expensive with a Total Expense Ratio (TER) of 0.38%, versus 0.4% for RSPM. IYM is up 14.83% year-to-date (YTD) with +$403M in YTD flows. RSPM performs better with 15.45% 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 07/31/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IYM RSPM | -2.00%+0.65% | -2.76%-0.35% | +14.83%+15.45% | +26.80%+22.20% | +32.98%+21.58% | +46.00%+31.14% |
| Flows | IYM RSPM | -$224M+$145K | -$324M-$1M | +$403M+$2M | +$470M-$15M | +$180M-$166M | -$119M-$320M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IYM RSPM | +22.38%+20.75% | +19.91%+18.71% | +18.46%+18.76% | +20.49%+20.13% |
| Max drawdown | IYM RSPM | -8.61%-7.27% | -13.67%-12.20% | -23.58%-27.09% | -29.91%-27.09% |
| Max drawdown duration | IYM RSPM | 45d82d | 102d170d | 352d470d | 709d470d |
Trading data
IYM | RSPM | |
Last sale 7/31/2026 at 1:30 PM | $175.70 | $38.95 |
| Previous close 07/30/2026 | $179.22 | $39.70 |
| Consolidated volume 07/30/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of July 31, 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 7/31/2026 at 1:30 PM
Live
Closed
IYM | RSPM | |
|---|---|---|
| Last price | $175.70 | $38.95 |
| 1D performance | -1.96% | -1.89% |
| AuM | $1.16 B | $177.61 M |
| E/R | 0.38% | 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 | 39 | 26 |
| 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
76.91%
United Kingdom
22.99%
Other
0.1%
RSPM
USA
80.91%
Other
19.09%
Sectors
IYM
Non-Energy Materi.
94.72%
Other
5.28%
RSPM
Non-Energy Materi.
96.29%
Other
3.71%
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Diversification
IYM
Total weight of top 15 holdings out of 15
77.3%
RSPM
Total weight of top 15 holdings out of 15
61.53%
Top 15 holdings
Data as of June 30, 2026
IYM
Linde Plc
21.60%
Newmont Corp.
9.05%
Freeport-McMoRan, Inc.
8.18%
Ecolab, Inc.
6.32%
Air Products & Chemicals, Inc.
4.87%
Fastenal Co.
4.41%
Nucor Corp.
3.84%
Anglogold Ashanti Plc
3.39%
Carpenter Technology Corp.
3.02%
Steel Dynamics, Inc.
2.79%
International Flavors & Fragrances, Inc.
2.07%
RBC Bearings, Inc.
2.05%
International Paper Co.
2.04%
Reliance, Inc.
1.94%
Royal Gold, Inc.
1.73%
RSPM
International Paper Co.
4.45%
Smurfit WestRock Plc
4.41%
Vulcan Materials Co.
4.17%
The Sherwin-Williams Co.
4.14%
Ball Corp.
4.13%
The Mosaic Co.
4.13%
Amcor Plc
4.12%
CRH Plc
4.11%
Packaging Corporation of America
4.07%
Martin Marietta Materials, Inc.
4.07%
Corteva, Inc.
4.05%
Ecolab, Inc.
4.03%
PPG Industries, Inc.
3.99%
Avery Dennison Corp.
3.88%
Newmont Corp.
3.79%
Frequently asked questions about IYM and RSPM
How have the IYM and RSPM ETFs performed in 2026?
As of July 31, 2026, IYM is up 14.83% year-to-date (YTD), while RSPM has returned 15.45%. That puts RSPM better performer ahead so far this year.
Which ETF is attracting more investor money: IYM or RSPM?
Year-to-date, the IYM ETF saw +$403M in flows, compared to +$2M for RSPM.
Which ETF is more volatile: IYM or RSPM?
Over the past year, IYM had a volatility of 19.91%, while RSPM experienced 18.71%.
Which ETF is bigger: IYM or RSPM?
As of July 31, 2026, IYM holds $1.16 B in assets under management (AUM), while RSPM manages $177.61 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: International Paper Co., Smurfit WestRock Plc and Vulcan Materials Co..
Which ETF is more diversified: IYM or RSPM?
IYM holds 39 securities with 77.3% of its assets in the top 15. RSPM has 26 securities and a top 15 weight of 61.53%.
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