CHAT vs IYW overlap - what they share and where they differ
CHAT and IYW share 34.7% of their weight across 21 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 IYW
34.7%
21 shared positions
CHAT
Roundhill Generative AI & Technology ETF
Reported positions cover 100% of the fund, 47 positions · Jul 31, 2026
Top 10: 39.3%·Holdings of CHAT
IYW
iShares U.S. Technology ETF
Reported positions cover 100% of the fund, 148 positions · Jul 31, 2026
Top 10: 67.3%·Holdings of IYW
Reported positions cover CHAT 100%, IYW 100% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
IYW vs CHAT side by side
CHATRoundhill Generative AI & Technology ETF
47
stock positions reported to the SEC
48.5% of its weight is in 26 names IYW does not hold
IYWiShares U.S. Technology ETF
148
stock positions reported to the SEC
41.7% of its weight is in 127 names CHAT does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Technology: IYW has 31.0 points more of it.
The figures side by side
| CHAT | IYW | |
|---|---|---|
| Filing date | Jul 31, 2026 | Jul 31, 2026 |
| Stock positions reported | 47 | 148 |
| Weight of the ten largest | 39.3% | 67.3% |
| Largest position | NVDA 6.4% | NVDA 13.7% |
| Held alone | 26 positions, 48.5% | 127 positions, 41.7% |
| Covered by stock positions | 100% | 100% |
Holdings they share
| Stock | In CHAT | In IYW | Counted |
|---|---|---|---|
| NVDANVIDIA Corp | 6.43% | 13.65% | 6.43% |
| GOOGLAlphabet Inc | 5.92% | 11.23% | 5.92% |
| AVGOBroadcom Inc | 4.31% | 4.62% | 4.31% |
| AMDAdvanced Micro Devices Inc | 3.39% | 3.06% | 3.06% |
| MUMicron Technology Inc | 3.22% | 2.97% | 2.97% |
| MSFTMicrosoft Corp | 2.78% | 10.68% | 2.78% |
| METAMeta Platforms Inc | 1.96% | 3.79% | 1.96% |
| ORCLOracle Corp | 2.02% | 1.16% | 1.16% |
| INTCIntel Corp | 1.04% | 2.06% | 1.04% |
| CRWDCrowdstrike Holdings Inc | 1.51% | 1.00% | 1.00% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in CHAT
Only in IYW
Questions people ask
Is CHAT the same as IYW?
34.7% of their weight sits in the same 21 holdings. CHAT also reports SKHY, SAMSUNG ELECTRONICS CO., LTD., NBIS, which the other does not. IYW also reports AAPL, AMAT, LRCX, which the other does not.
How is the overlap between CHAT and IYW 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 CHAT and 100% of IYW, so the number cannot exceed the smaller coverage.
Which holds more, IYW or CHAT?
CHAT reports 47 stock positions and IYW reports 148. 48.5% of CHAT's weight sits in names IYW does not hold, and 41.7% of IYW's weight in names CHAT does not hold. The ten largest positions are 39.3% of CHAT and 67.3% of IYW.
How do CHAT and IYW differ by sector?
The widest gap is Technology: IYW has 31.0 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.
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.