Data as of Sep 4, 2026. Both funds on the fields they both publish, from the same sources.
IWM vs RSP
iShares Russell 2000 ETF and Invesco S&P 500 Equal Weight ETF.
| IWM iShares Russell 2000 ETF | RSP Invesco S&P 500 Equal Weight ETF | |
|---|---|---|
| Where it sits | Core fund | Core fund |
| Issuer | iShares | Invesco |
| What it is | Russell 2000 | S&P 500 equal weight |
| Total return, 1 year | +26.4% | +18.3% |
| S&P 500 over the same days | +20.0% | +20.0% |
| Gap to the S&P 500 | +6.5 pts | −1.7 pts |
| Expense ratio | 0.19% | 0.20% |
| Already in the S&P 500 | 0.0% | 99.1% |
| Holdings | 2014 | 503 |
IWM in plain words
IWM is a index equity fund tracking Russell 2000. Over the year to Sep 4, 2026 it returned +26.4% with distributions reinvested, against +20.0% for the S&P 500 and +25.6% for the Nasdaq-100. The prospectus expense ratio is 0.19% a year. By its holdings filed for Jun 30, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 2014 positions, with the top ten at 3.4%.
RSP in plain words
RSP is a index equity fund tracking S&P 500 equal weight. Over the year to Sep 4, 2026 it returned +18.3% with distributions reinvested, against +20.0% for the S&P 500 and +25.6% for the Nasdaq-100. The prospectus expense ratio is 0.20% a year. By its holdings filed for Apr 30, 2026, 99% of the fund by weight is stocks the S&P 500 also holds, across 503 positions, with the top ten at 3.2%.
Questions people ask
- Which returned more over the last year, IWM or RSP?
- In the year to Sep 4, 2026, with distributions reinvested, IWM returned +26.4% and RSP returned +18.3%, so IWM returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, IWM or RSP?
- IWM charges 0.19% a year and RSP charges 0.20%, so IWM is cheaper. Fees come from each fund's prospectus.
- How much do IWM and RSP overlap with the S&P 500?
- By their latest filed holdings, 0% of IWM and 99% of RSP by weight is stocks the S&P 500 already holds.
Other comparisons
Where to next
Cite this page. ETFIQ, IWM against RSP, data as of Sep 4, 2026. https://etfiq.com/compare/any/IWM-RSP.html Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. ETFIQ publishes the same fields for every fund and suggests no allocation. Standards and sources