Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
IVV vs IWB: how they differ
IVV and IWB hold 90% of their weight in the same names, and IVV returned more over the year.
iShares Core S&P 500 ETF and iShares Russell 1000 ETF.
What they hold in common
By the books each fund has filed, IVV and IWB hold 90% of their money in the same securities at the same weight.
| Holding | IVV | IWB |
|---|---|---|
| NVIDIA Corp. | 7.52% | 6.73% |
| Apple, Inc. | 6.59% | 6.03% |
| Microsoft Corp. | 4.30% | 4.00% |
| Amazon.com, Inc. | 3.62% | 3.33% |
| Alphabet, Inc. | 3.25% | 3.00% |
| Broadcom, Inc. | 2.77% | 2.54% |
| Alphabet, Inc. | 2.59% | 2.42% |
| Micron Technology, Inc. | 2.02% | 1.88% |
| Meta Platforms, Inc. | 1.92% | 1.79% |
| Tesla, Inc. | 1.84% | 1.77% |
| Eli Lilly & Co. | 1.47% | 1.38% |
| Advanced Micro Devices, Inc. | 1.47% | 1.36% |
| Only in IVV | Only in IWB |
|---|---|
| Linde plc 0.37% | LINDE PUBLIC LIMITED COMPANY 0.34% |
| Seagate Technology Holdings plc 0.34% | EATON CORPORATION PUBLIC LIMITED COMPANY 0.24% |
| Eaton Corp. plc 0.26% | Chubb Limited 0.17% |
| Chubb Ltd. 0.19% | TRANE TECHNOLOGIES PUBLIC LIMITED COMPAN 0.16% |
| Trane Technologies plc 0.17% | MEDTRONIC PUBLIC LIMITED COMPANY 0.14% |
| Medtronic plc 0.16% | SPACE EXPLORATION TECHNOLOGIES CORP. 0.13% |
| Johnson Controls International plc 0.14% | JOHNSON CONTROLS INTERNATIONAL PUBLIC LI 0.13% |
| Royal Caribbean Cruises Ltd. 0.12% | SNOWFLAKE INC. 0.12% |
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 Jun 30, 2026.
| IVV iShares Core S&P 500 ETF | IWB iShares Russell 1000 ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | iShares |
| What it is | S&P 500 | Russell 1000 |
| Total return, 1 year | +17.6% | +16.7% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +0.1 pts | −0.8 pts |
| Expense ratio | 0.03% | 0.15% |
| Already in the S&P 500 | 100.0% | 91.9% |
| Holdings | 504 | 1024 |
IVV in plain words
IVV is an index equity fund tracking the S&P 500. Over the year to Sep 11, 2026 it returned +17.6% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.03% a year. By its holdings filed for Jun 30, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 504 positions, with the top ten at 36.4%.
IWB in plain words
IWB is an index equity fund tracking the Russell 1000. Over the year to Sep 11, 2026 it returned +16.7% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.15% 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 1024 positions, with the top ten at 33.5%.
Questions people ask
- Which returned more over the last year, IVV or IWB?
- In the year to Sep 12, 2026, with distributions reinvested, IVV returned +17.6% and IWB returned +16.7%, so IVV returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, IVV or IWB?
- IVV charges 0.03% a year and IWB charges 0.15%, so IVV is cheaper. Fees come from each fund's prospectus.
- How much do IVV and IWB overlap with the S&P 500?
- By their latest filed holdings, 100% of IVV and 92% of IWB by weight is stocks the S&P 500 already holds. Between the two funds, 90% 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, IVV against IWB, data as of Sep 12, 2026. https://etfiq.com/compare/any/IVV-IWB Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources