CHAT vs VOOG overlap - what they share and where they differ
CHAT and VOOG share 37.2% of their weight across 15 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.
CHAT and VOOG
37.2%
15 shared positions
CHAT
Roundhill Generative Ai & Technology ETF
Reported positions cover 99% of the fund, 40 positions · Apr 30, 2026
Top 10: 46.1%·Holdings of CHAT
VOOG
VANGUARD S&P 500 GROWTH INDEX FUND
Reported positions cover 100% of the fund, 143 positions · May 31, 2026
Top 10: 62.5%·Holdings of VOOG
Reported positions cover CHAT 99%, VOOG 100% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
VOOG vs CHAT side by side
CHATRoundhill Generative Ai & Technology ETF
40
stock positions reported to the SEC
50.2% of its weight is in 25 names VOOG does not hold
VOOGVANGUARD S&P 500 GROWTH INDEX FUND
143
stock positions reported to the SEC
42.8% of its weight is in 128 names CHAT does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Financial Services: VOOG has 6.7 points more of it.
The figures side by side
| CHAT | VOOG | |
|---|---|---|
| Filing date | Apr 30, 2026 | May 31, 2026 |
| Stock positions reported | 40 | 143 |
| Weight of the ten largest | 46.1% | 62.5% |
| Largest position | GOOGL 7.2% | NVDA 14.3% |
| Held alone | 25 positions, 50.2% | 128 positions, 42.8% |
| Covered by stock positions | 99% | 100% |
Holdings they share
| Stock | In CHAT | In VOOG | Counted |
|---|---|---|---|
| GOOGLAlphabet Inc | 7.16% | 11.05% | 7.16% |
| NVDANVIDIA Corp | 6.95% | 14.26% | 6.95% |
| AMZNAmazon.com Inc | 4.18% | 3.90% | 3.90% |
| AVGOBroadcom Inc | 3.89% | 5.89% | 3.89% |
| MSFTMicrosoft Corp | 3.58% | 9.29% | 3.58% |
| MUMicron Technology Inc | 4.08% | 3.04% | 3.04% |
| METAMeta Platforms Inc | 2.98% | 3.85% | 2.98% |
| AMDAdvanced Micro Devices Inc | 4.98% | 2.34% | 2.34% |
| PLTRPalantir Technologies Inc | 1.94% | 0.99% | 0.99% |
| SANDISK CORP/DE | 1.27% | 0.70% | 0.70% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in CHAT
Only in VOOG
Questions people ask
Is CHAT the same as VOOG?
37.2% of their weight sits in the same 15 holdings. CHAT also reports SKHY, SAMSUNG ELECTRONICS CO LTD, SOFTBANK GROUP CORP, which the other does not. VOOG also reports AAPL, LLY, BRK.A, which the other does not.
How is the overlap between CHAT and VOOG measured?
For every stock both funds report, the smaller of the two weights counts, and the sum is the overlap. The reported positions cover 99% of CHAT and 100% of VOOG, so the number cannot exceed the smaller coverage.
Which holds more, VOOG or CHAT?
CHAT reports 40 stock positions and VOOG reports 143. 50.2% of CHAT's weight sits in names VOOG does not hold, and 42.8% of VOOG's weight in names CHAT does not hold. The ten largest positions are 46.1% of CHAT and 62.5% of VOOG.
How do CHAT and VOOG differ by sector?
The widest gap is Financial Services: VOOG has 6.7 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
VOOG 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.