Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
IWB vs SPYG: how they differ
IWB and SPYG hold 61% of their weight in the same names, and SPYG returned more over the year.
iShares Russell 1000 ETF and State Street(R) SPDR(R) Portfolio S&P 500(R) Growth ETF.
What they hold in common
By the books each fund has filed, IWB and SPYG hold 61% of their money in the same securities at the same weight.
| Holding | IWB | SPYG |
|---|---|---|
| NVIDIA CORPORATION | 6.73% | 13.66% |
| APPLE INC. | 6.03% | 5.99% |
| MICROSOFT CORPORATION | 4.00% | 7.81% |
| AMAZON.COM, INC. | 3.33% | 3.48% |
| ALPHABET INC. | 3.00% | 5.91% |
| BROADCOM INC. | 2.54% | 5.04% |
| ALPHABET INC. | 2.42% | 4.71% |
| MICRON TECHNOLOGY, INC. | 1.88% | 3.67% |
| META PLATFORMS, INC. | 1.79% | 3.49% |
| TESLA, INC. | 1.77% | 2.07% |
| ELI LILLY AND COMPANY | 1.38% | 2.67% |
| ADVANCED MICRO DEVICES, INC. | 1.36% | 2.67% |
| Only in IWB | Only in SPYG |
|---|---|
| INTEL CORPORATION 0.88% | Seagate Technology Holdings PLC 0.39% |
| EXXON MOBIL CORPORATION 0.82% | Royal Caribbean Cruises Ltd 0.22% |
| WALMART INC. 0.72% | Flex Ltd 0.17% |
| COSTCO WHOLESALE CORPORATION 0.60% | Johnson Controls International plc 0.17% |
| BANK OF AMERICA CORPORATION 0.54% | Trane Technologies PLC 0.16% |
| UNITEDHEALTH GROUP INCORPORATED 0.54% | TE Connectivity PLC 0.11% |
| THE HOME DEPOT, INC. 0.51% | Carnival Corp Ltd 0.10% |
| THE PROCTER & GAMBLE COMPANY 0.49% | STERIS PLC 0.03% |
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.
| IWB iShares Russell 1000 ETF | SPYG State Street(R) SPDR(R) Portfolio S&P 500(R) Growth ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | State Street |
| What it is | Russell 1000 | SPDR Portfolio S&P 500 Growth |
| Total return, 1 year | +16.7% | +17.9% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −0.8 pts | +0.4 pts |
| Expense ratio | 0.15% | 0.04% |
| Already in the S&P 500 | 91.9% | 100.0% |
| Holdings | 1024 | 147 |
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%.
SPYG in plain words
SPYG is an index equity fund tracking the SPDR Portfolio S&P 500 Growth. Over the year to Sep 11, 2026 it returned +17.9% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.04% 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 147 positions, with the top ten at 56.4%.
Questions people ask
- Which returned more over the last year, IWB or SPYG?
- In the year to Sep 12, 2026, with distributions reinvested, IWB returned +16.7% and SPYG returned +17.9%, so SPYG returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, IWB or SPYG?
- IWB charges 0.15% a year and SPYG charges 0.04%, so SPYG is cheaper. Fees come from each fund's prospectus.
- How much do IWB and SPYG overlap with the S&P 500?
- By their latest filed holdings, 92% of IWB and 100% of SPYG by weight is stocks the S&P 500 already holds. Between the two funds, 61% 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, IWB against SPYG, data as of Sep 12, 2026. https://etfiq.com/compare/any/IWB-SPYG Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources