Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.
FNDX vs IWB: how they differ
FNDX and IWB hold 0% of their weight in the same names, and FNDX returned more over the year.
Schwab Fundamental U.S. Large Company ETF and iShares Russell 1000 ETF.
What they hold in common
By the books each fund has filed, FNDX and IWB hold 0% of their money in the same securities at the same weight.
| Only in FNDX | Only in IWB |
|---|---|
| Apple Inc 4.64% | NVIDIA 7.26% |
| Intel Corp 2.57% | APPLE 6.73% |
| Alphabet Inc 2.38% | MICROSOFT 5.21% |
| Microsoft Corp 2.33% | AMAZON.COM INC 3.49% |
| Exxon Mobil Corp 2.29% | ALPHABET CLASS A 2.77% |
| Alphabet Inc 1.90% | BROADCOM INC 2.40% |
| Amazon.com Inc 1.86% | ALPHABET CLASS C 2.24% |
| Micron Technology Inc 1.60% | META PLATFORMS CLASS A 2.02% |
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 May 31, 2026 and Sep 10, 2026.
| FNDX Schwab Fundamental U.S. Large Company ETF | IWB iShares Russell 1000 ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | Schwab | iShares |
| What it is | Fundamental U.S. Large Company | Russell 1000 |
| Total return, 1 year | +26.1% | +16.7% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +8.6 pts | −0.8 pts |
| Expense ratio | 0.25% | 0.15% |
| Already in the S&P 500 | 91.2% | 91.9% |
| Holdings | 733 | 945 |
FNDX in plain words
FNDX is an index equity fund tracking the Fundamental U.S. Large Company. Over the year to Sep 11, 2026 it returned +26.1% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.25% a year. By its holdings filed for May 31, 2026, 91% of the fund by weight is stocks the S&P 500 also holds, across 733 positions, with the top ten at 22.5%.
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 Sep 10, 2026, 92% of the fund by weight is stocks the S&P 500 also holds, across 945 positions, with the top ten at 35.2%.
Questions people ask
- Which returned more over the last year, FNDX or IWB?
- In the year to Sep 13, 2026, with distributions reinvested, FNDX returned +26.1% and IWB returned +16.7%, so FNDX returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, FNDX or IWB?
- FNDX charges 0.25% a year and IWB charges 0.15%, so IWB is cheaper. Fees come from each fund's prospectus.
- How much do FNDX and IWB overlap with the S&P 500?
- By their latest filed holdings, 91% of FNDX and 92% of IWB 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
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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, FNDX against IWB, data as of Sep 13, 2026. https://etfiq.com/compare/any/fndx-vs-iwb Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources