Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
ACWI vs RSP: how they differ
ACWI and RSP hold 33% of their weight in the same names, and ACWI returned more over the year.
iShares MSCI ACWI ETF and Invesco S&P 500 Equal Weight ETF.
What they hold in common
By the books each fund has filed, ACWI and RSP hold 33% of their money in the same securities at the same weight.
| Holding | ACWI | RSP |
|---|---|---|
| INTEL CORPORATION | 0.43% | 0.38% |
| ADVANCED MICRO DEVICES, INC. | 0.58% | 0.33% |
| TEXAS INSTRUMENTS INCORPORATED | 0.26% | 0.27% |
| UNITEDHEALTH GROUP INCORPORATED | 0.34% | 0.25% |
| GE VERNOVA INC. | 0.30% | 0.25% |
| CATERPILLAR INC. | 0.42% | 0.24% |
| AMAZON.COM, INC. | 2.58% | 0.24% |
| MICRON TECHNOLOGY, INC. | 0.59% | 0.24% |
| BROADCOM INC. | 1.90% | 0.24% |
| KLA CORPORATION | 0.23% | 0.23% |
| LAM RESEARCH CORPORATION | 0.33% | 0.23% |
| MORGAN STANLEY | 0.23% | 0.23% |
| Only in ACWI | Only in RSP |
|---|---|
| Taiwan Semiconductor Manufacturing Compa 1.73% | Sandisk Corp. 0.32% |
| ASML Holding N.V. 0.56% | Skyworks Solutions, Inc. 0.24% |
| SK hynix Inc. 0.49% | APA Corp. 0.24% |
| Tencent Holdings Limited 0.39% | Generac Holdings Inc. 0.23% |
| HSBC HOLDINGS PLC 0.32% | Franklin Resources, Inc. 0.23% |
| ASTRAZENECA PLC 0.29% | Albemarle Corp. 0.23% |
| Alibaba Group Holding Limited 0.29% | BXP, Inc. 0.22% |
| Novartis AG 0.28% | FactSet Research Systems Inc. 0.21% |
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.
| ACWI iShares MSCI ACWI ETF | RSP Invesco S&P 500 Equal Weight ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | Invesco |
| What it is | MSCI ACWI | S&P 500 equal weight |
| Total return, 1 year | +19.1% | +14.8% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +1.6 pts | −2.7 pts |
| Expense ratio | 0.32% | 0.20% |
| Already in the S&P 500 | 61.4% | 99.1% |
| Holdings | 2307 | 503 |
ACWI in plain words
ACWI is an index equity fund tracking the MSCI ACWI. Over the year to Sep 11, 2026 it returned +19.1% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.32% a year. By its holdings filed for Apr 30, 2026, 61% of the fund by weight is stocks the S&P 500 also holds, across 2307 positions, with the top ten at 24.6%.
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, ACWI or RSP?
- In the year to Sep 12, 2026, with distributions reinvested, ACWI returned +19.1% and RSP returned +14.8%, so ACWI returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, ACWI or RSP?
- ACWI charges 0.32% a year and RSP charges 0.20%, so RSP is cheaper. Fees come from each fund's prospectus.
- How much do ACWI and RSP overlap with the S&P 500?
- By their latest filed holdings, 61% of ACWI and 99% of RSP by weight is stocks the S&P 500 already holds. Between the two funds, 33% 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, ACWI against RSP, data as of Sep 12, 2026. https://etfiq.com/compare/any/ACWI-RSP Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources