IWF vs VONG overlap - what they share and where they differ
IWF and VONG share 75.2% of their weight across 266 common positions, read from what each fund reported to the SEC.
Each week Ploutos reads the reported positions of the largest US equity ETFs and measures, pair by pair, the weight they share: for every stock both funds hold, the smaller of the two weights counts. Two funds tracking the same index land near 100%. A sector fund inside a broad index fund lands at roughly that sector's weight.
IWF and VONG
75.2%
266 shared positions
IWF
iShares Russell 1000 Growth ETF
Reported positions cover 100% of the fund, 365 positions · Jun 30, 2026
Top 10: 57.1%·Holdings of IWF
VONG
VANGUARD RUSSELL 1000 GROWTH INDEX FUND
Reported positions cover 100% of the fund, 381 positions · May 31, 2026
Top 10: 62.8%·Holdings of VONG
Reported positions cover IWF 100%, VONG 100% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
VONG vs IWF side by side
IWFiShares Russell 1000 Growth ETF
365
stock positions reported to the SEC
9.8% of its weight is in 99 names VONG does not hold
VONGVANGUARD RUSSELL 1000 GROWTH INDEX FUND
381
stock positions reported to the SEC
3.1% of its weight is in 115 names IWF does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Consumer Cyclical: VONG has 4.6 points more of it.
The figures side by side
| IWF | VONG | |
|---|---|---|
| Filing date | Jun 30, 2026 | May 31, 2026 |
| Stock positions reported | 365 | 381 |
| Weight of the ten largest | 57.1% | 62.8% |
| Largest position | NVDA 13.8% | NVDA 13.1% |
| Held alone | 99 positions, 9.8% | 115 positions, 3.1% |
| Covered by stock positions | 100% | 100% |
Holdings they share
| Stock | In IWF | In VONG | Counted |
|---|---|---|---|
| NVDANVIDIA CORPORATION | 13.83% | 13.07% | 13.07% |
| GOOGLALPHABET INC. | 11.15% | 7.05% | 7.05% |
| AAPLAPPLE INC. | 6.72% | 11.95% | 6.72% |
| AVGOBROADCOM INC. | 5.21% | 5.77% | 5.21% |
| MSFTMICROSOFT CORPORATION | 4.11% | 8.96% | 4.11% |
| TSLATESLA, INC. | 3.64% | 3.48% | 3.48% |
| METAMETA PLATFORMS, INC. | 3.00% | 3.19% | 3.00% |
| LLYELI LILLY AND COMPANY | 2.84% | 2.67% | 2.67% |
| VVISA INC. | 1.68% | 1.57% | 1.57% |
| AMDADVANCED MICRO DEVICES, INC. | 2.80% | 1.47% | 1.47% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in IWF
Only in VONG
Questions people ask
Is IWF the same as VONG?
75.2% of their weight sits in the same 266 holdings. IWF also reports MU, SNDK, WDC, which the other does not. VONG also reports VRTX, ORLY, SNPS, which the other does not.
How is the overlap between IWF and VONG measured?
For every stock both funds report, the smaller of the two weights counts, and the sum is the overlap. The reported positions cover 100% of IWF and 100% of VONG, so the number cannot exceed the smaller coverage.
Which holds more, VONG or IWF?
IWF reports 365 stock positions and VONG reports 381. 9.8% of IWF's weight sits in names VONG does not hold, and 3.1% of VONG's weight in names IWF does not hold. The ten largest positions are 57.1% of IWF and 62.8% of VONG.
How do IWF and VONG differ by sector?
The widest gap is Consumer Cyclical: VONG has 4.6 points more of it. Sectors come from each holding's SIC code in its SEC record, summed by the weight the fund reports.
Where do the numbers come from?
From each fund's own N-PORT filing to the SEC, which lists every position and its weight. The comparison uses every equity position the fund reports; cash, futures and bonds are not counted, which is why a coverage figure sits next to every result. Holdings change between filings.
Other pairs with these funds
IWF against other funds in the table
Add a third fund in the tool·All fund pairs
Descriptive data from public SEC filings. Nothing on this page is a recommendation to buy, sell or hold any fund or stock, and holdings change between filings.