Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
IGM vs RSP: how they differ
IGM and RSP hold 13% 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 13% of their money in the same securities at the same weight.
| Holding | IGM | RSP |
|---|---|---|
| Intel Corp. | 2.88% | 0.38% |
| Advanced Micro Devices, Inc. | 4.13% | 0.33% |
| Sandisk Corp. | 1.47% | 0.32% |
| Western Digital Corp. | 0.96% | 0.31% |
| Ciena Corp. | 0.30% | 0.30% |
| Monolithic Power Systems, Inc. | 0.30% | 0.29% |
| Dell Technologies, Inc. | 0.55% | 0.27% |
| Texas Instruments, Inc. | 1.18% | 0.27% |
| Hewlett Packard Enterprise Co. | 0.26% | 0.26% |
| Lumentum Holdings, Inc. | 0.29% | 0.26% |
| QUALCOMM, Inc. | 0.85% | 0.26% |
| Coherent Corp. | 0.34% | 0.24% |
| Only in IGM | Only in RSP |
|---|---|
| Marvell Technology, Inc. 1.14% | Seagate Technology Holdings PLC 0.34% |
| Seagate Technology Holdings plc 0.94% | Centene Corp. 0.29% |
| Shopify, Inc. 0.61% | NXP Semiconductors N.V. 0.28% |
| Snowflake, Inc. 0.38% | Humana Inc. 0.27% |
| Cloudflare, Inc. 0.34% | Nucor Corp. 0.25% |
| Accenture plc 0.33% | Comfort Systems USA, Inc. 0.25% |
| NXP Semiconductors NV 0.31% | Elevance Health, Inc. 0.25% |
| Astera Labs, Inc. 0.28% | UnitedHealth Group Inc. 0.25% |
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 Apr 30, 2026 and Jun 30, 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 | 295 | 503 |
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 Jun 30, 2026, 92% of the fund by weight is stocks the S&P 500 also holds, across 295 positions, with the top ten at 55.7%. 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 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%. 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 12, 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, 13% of their books are the same securities at the same weight.
Other comparisons
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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 12, 2026. https://etfiq.com/compare/any/IGM-RSP Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources