FBCG vs IUSG overlap - what they share and where they differ
FBCG and IUSG share 63.9% of their weight across 94 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.
FBCG and IUSG
63.9%
94 shared positions
FBCG
Fidelity Blue Chip Growth ETF
Reported positions cover 100% of the fund, 228 positions · Jul 31, 2026
Top 10: 57.5%·Holdings of FBCG
IUSG
iShares Core S&P U.S. Growth ETF
Reported positions cover 100% of the fund, 388 positions · Jun 30, 2026
Top 10: 56.1%·Holdings of IUSG
Reported positions cover FBCG 100%, IUSG 100% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
IUSG vs FBCG side by side
FBCGFidelity Blue Chip Growth ETF
228
stock positions reported to the SEC
20.4% of its weight is in 134 names IUSG does not hold
IUSGiShares Core S&P U.S. Growth ETF
388
stock positions reported to the SEC
17.3% of its weight is in 294 names FBCG does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Financial Services: IUSG has 5.9 points more of it.
The figures side by side
| FBCG | IUSG | |
|---|---|---|
| Filing date | Jul 31, 2026 | Jun 30, 2026 |
| Stock positions reported | 228 | 388 |
| Weight of the ten largest | 57.5% | 56.1% |
| Largest position | NVDA 14.9% | NVDA 13.0% |
| Held alone | 134 positions, 20.4% | 294 positions, 17.3% |
| Covered by stock positions | 100% | 100% |
Holdings they share
| Stock | In FBCG | In IUSG | Counted |
|---|---|---|---|
| NVDANVIDIA CORP | 14.90% | 12.95% | 12.95% |
| GOOGLALPHABET INC | 9.55% | 10.07% | 9.55% |
| AAPLAPPLE INC | 9.31% | 5.68% | 5.68% |
| MSFTMICROSOFT CORP | 4.94% | 7.41% | 4.94% |
| AVGOBROADCOM INC | 4.38% | 4.78% | 4.38% |
| AMZNAMAZON.COM INC | 5.86% | 3.31% | 3.31% |
| LLYELI LILLY and CO | 2.71% | 2.54% | 2.54% |
| METAMETA PLATFORMS INC | 2.31% | 3.31% | 2.31% |
| MUMICRON TECHNOLOGY INC | 1.97% | 3.48% | 1.97% |
| TSLATESLA INC | 1.28% | 1.96% | 1.28% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in FBCG
Only in IUSG
Questions people ask
Is FBCG the same as IUSG?
63.9% of their weight sits in the same 94 holdings. FBCG also reports WDC, SANDISK CORP/DE, TAIWAN SEMICONDUCTOR MFG CO LTD, which the other does not. IUSG also reports BRK.A, SNDK, RTX, which the other does not.
How is the overlap between FBCG and IUSG 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 FBCG and 100% of IUSG, so the number cannot exceed the smaller coverage.
Which holds more, IUSG or FBCG?
FBCG reports 228 stock positions and IUSG reports 388. 20.4% of FBCG's weight sits in names IUSG does not hold, and 17.3% of IUSG's weight in names FBCG does not hold. The ten largest positions are 57.5% of FBCG and 56.1% of IUSG.
How do FBCG and IUSG differ by sector?
The widest gap is Financial Services: IUSG has 5.9 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
IUSG 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.