Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.
IGM vs RSP: how they differ
IGM and RSP hold 0% of their weight in the same names, and IGM returned more over the year.
iShares Expanded Tech Sector ETF and Invesco S&P 500 Equal Weight ETF.
What they hold in common
By the books each fund has filed, IGM and RSP hold 0% of their money in the same securities at the same weight.
| Only in IGM | Only in RSP |
|---|---|
| MICROSOFT 10.11% | Moderna Inc 0.58% |
| APPLE 9.14% | Veeva Systems Inc 0.31% |
| NVIDIA 8.89% | Zebra Technologies Corp 0.31% |
| BROADCOM INC 7.42% | Marathon Petroleum Corp 0.29% |
| META PLATFORMS CLASS A 4.87% | Valero Energy Corp 0.29% |
| MICRON TECHNOLOGY 4.73% | Charles River Laboratories International 0.28% |
| ALPHABET CLASS A 4.23% | Phillips 66 0.28% |
| ADVANCED MICRO DEVICES 3.66% | Salesforce Inc 0.28% |
Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings dated Sep 10, 2026.
| IGM iShares Expanded Tech Sector ETF | RSP Invesco S&P 500 Equal Weight ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | Invesco |
| What it is | Expanded Tech Sector | S&P 500 equal weight |
| Total return, 1 year | +32.7% | +14.8% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +15.2 pts | −2.7 pts |
| Expense ratio | 0.37% | 0.20% |
| Already in the S&P 500 | 92.0% | 99.1% |
| Holdings | 272 | 506 |
IGM in plain words
IGM is an index equity fund tracking the Expanded Tech Sector. Over the year to Sep 11, 2026 it returned +32.7% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.37% a year. By its holdings filed for Sep 10, 2026, 92% of the fund by weight is stocks the S&P 500 also holds, across 272 positions, with the top ten at 58.6%. It sat 5.1% below its high of Jun 2, 2026 on Sep 11, 2026.
RSP in plain words
RSP is an index equity fund tracking the S&P 500 equal weight. Over the year to Sep 11, 2026 it returned +14.8% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.20% a year. By its holdings filed for Sep 10, 2026, 99% of the fund by weight is stocks the S&P 500 also holds, across 506 positions, with the top ten at 3.2%. It sat 3.5% below its high of Aug 14, 2026 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, IGM or RSP?
- In the year to Sep 13, 2026, with distributions reinvested, IGM returned +32.7% and RSP returned +14.8%, so IGM returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, IGM or RSP?
- IGM charges 0.37% a year and RSP charges 0.20%, so RSP is cheaper. Fees come from each fund's prospectus.
- How much do IGM and RSP overlap with the S&P 500?
- By their latest filed holdings, 92% of IGM and 99% of RSP by weight is stocks the S&P 500 already holds. Between the two funds, 0% of their books are the same securities at the same weight.
Other comparisons
Where to next
Where these figures came from
ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.
Cite this page. ETFIQ, IGM against RSP, data as of Sep 13, 2026. https://etfiq.com/compare/any/igm-vs-rsp Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources