ETF comparison
IWF vs SPY
US Large Cap Growth vs US Large Cap.
iShares Russell 1000 Growth ETF · State Street SPDR S&P 500 ETF Trust
Holdings overlap
180 positions appear in both funds. Buying equal dollars of IWF and SPY would leave roughly 52.7% of each dollar exposed to the same underlying securities.
Unmatched is the part of a fund's weight the other fund doesn't match: names only it holds, plus any extra weight it puts in names both funds hold.
Side by side
Sub-score comparison
Tracking quality isn't part of the composite — see what we don't score for why.
Cost difference
SPY is 9 bps cheaper than IWF. On a $100,000 position that's about $86/yr more in fees for IWF.
Fee figure is the annual expense charged on $100,000. To see how the gap compounds over a multi-decade holding period, open the cost calculator pre-filled with IWF vs SPY.
Top shared holdings
180 shared in total| # | Holding | In IWF | In SPY | Overlap |
|---|---|---|---|---|
| 1 | NVIDIA CORPORATION | 13.83% | 7.30% | 7.30% |
| 2 | APPLE INC. | 6.72% | 7.69% | 6.72% |
| 3 | MICROSOFT CORPORATION | 4.11% | 6.22% | 4.11% |
| 4 | ALPHABET INC. | 6.17% | 2.56% | 2.56% |
| 5 | BROADCOM INC. | 5.21% | 2.33% | 2.33% |
| 6 | META PLATFORMS, INC. | 3.00% | 2.09% | 2.09% |
| 7 | ALPHABET INC. | 4.98% | 2.06% | 2.06% |
| 8 | ELI LILLY AND COMPANY | 2.84% | 1.71% | 1.71% |
| 9 | TESLA, INC. | 3.64% | 1.64% | 1.64% |
| 10 | MICRON TECHNOLOGY, INC. | 3.86% | 1.35% | 1.35% |
| 11 | ADVANCED MICRO DEVICES, INC. | 2.80% | 1.20% | 1.20% |
| 12 | VISA INC. | 1.68% | 1.12% | 1.12% |
Only in IWF
188 total- SNOWFLAKE INC. 0.25%
- SPACE EXPLORATION TECHNOLOGIES CORP. 0.24%
- CLOUDFLARE, INC. 0.23%
- Astera Labs, Inc 0.22%
- SPOTIFY TECHNOLOGY S.A. 0.21%
- ROCKET LAB CORPORATION 0.16%
- Nu Holdings Ltd. 0.14%
- Credo Technology Group Holding Ltd 0.13%
- ALNYLAM PHARMACEUTICALS, INC. 0.12%
- NATERA, INC. 0.11%
Only in SPY
324 total- BERKSHIRE HATHAWAY INC CL B 1.63%
- JPMORGAN CHASE + CO 1.41%
- EXXONMOBIL HOLDINGS CORP 1.05%
- JOHNSON + JOHNSON 1.00%
- CHEVRON CORP 0.65%
- CISCO SYSTEMS INC 0.62%
- PROCTER + GAMBLE CO/THE 0.59%
- MERCK + CO. INC. 0.56%
- UNITEDHEALTH GROUP INC 0.55%
- PHILIP MORRIS INTERNATIONAL 0.50%
Related comparisons
More comparisons with IWF
- IWF vs DSI · iShares ESG MSCI KLD 400 ETF 51.3%
- IWF vs FELC · Fidelity Enhanced Large Cap Core ETF 50.6%
- IWF vs DFAU · Dimensional US Core Equity Market ETF 50.0%
- IWF vs SUSA · iShares ESG Optimized MSCI USA ETF 49.6%
- IWF vs OMFL · Invesco Russell 1000 Dynamic Multifactor ETF 49.4%
- IWF vs GSLC · Goldman Sachs ActiveBeta U.S. Large Cap Equity ETF 49.0%
More comparisons with SPY
- SPY vs DSI · iShares ESG MSCI KLD 400 ETF 52.4%
- SPY vs QQQM · Invesco NASDAQ 100 ETF 52.2%
- SPY vs IWY · iShares Russell Top 200 Growth ETF 50.7%
- SPY vs DGRW · WisdomTree U.S. Quality Dividend Growth Fund 50.3%
- SPY vs FELG · Fidelity Enhanced Large Cap Growth ETF 50.3%
- SPY vs FBCG · Fidelity Blue Chip Growth ETF 50.2%
Percentages are holdings overlap with the named fund.
Open IWF or SPY at a brokerage
Both funds trade commission-free at major US brokerages.
Affiliate links — opening an account through these earns PlainIndex a one-time referral. Scoring is computed before any affiliate consideration; see our methodology and funding disclosure.
Holdings overlap is the sum of min(weight_a, weight_b) over positions
matched on ISIN (CUSIP fallback). Methodology: see
/methodology/.
Comparing two funds doesn't endorse swapping one for the other. Tax-lot history, account type, and personal goals matter — PlainIndex publishes data and methodology, not investment advice.