CHAT vs IYW overlap - what they share and where they differ
CHAT and IYW share 38.3% of their weight across 18 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
38.3%
18 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
IYW
iShares U.S. Technology ETF
Reported positions cover 100% of the fund, 135 positions · Apr 30, 2026
Top 10: 65.6%·Holdings of IYW
Reported positions cover CHAT 99%, 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
40
stock positions reported to the SEC
51.2% of its weight is in 22 names IYW does not hold
IYWiShares U.S. Technology ETF
135
stock positions reported to the SEC
44.8% of its weight is in 117 names CHAT does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Technology: IYW has 28.7 points more of it.
The figures side by side
| CHAT | IYW | |
|---|---|---|
| Filing date | Apr 30, 2026 | Apr 30, 2026 |
| Stock positions reported | 40 | 135 |
| Weight of the ten largest | 46.1% | 65.6% |
| Largest position | GOOGL 7.2% | NVDA 16.2% |
| Held alone | 22 positions, 51.2% | 117 positions, 44.8% |
| Covered by stock positions | 99% | 100% |
Holdings they share
| Stock | In CHAT | In IYW | Counted |
|---|---|---|---|
| GOOGLAlphabet Inc | 7.16% | 14.17% | 7.16% |
| NVDANVIDIA Corp | 6.95% | 16.23% | 6.95% |
| AVGOBroadcom Inc | 3.89% | 3.78% | 3.78% |
| MSFTMicrosoft Corp | 3.58% | 3.99% | 3.58% |
| AMDAdvanced Micro Devices Inc | 4.98% | 3.50% | 3.50% |
| MUMicron Technology Inc | 4.08% | 2.98% | 2.98% |
| METAMeta Platforms Inc | 2.98% | 2.80% | 2.80% |
| PLTRPalantir Technologies Inc | 1.94% | 1.86% | 1.86% |
| ORCLOracle Corp | 1.52% | 1.67% | 1.52% |
| WDCWestern Digital Corp | 1.16% | 0.91% | 0.91% |
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?
38.3% of their weight sits in the same 18 holdings. CHAT also reports SKHY, AMZN, SAMSUNG ELECTRONICS CO LTD, which the other does not. IYW also reports AAPL, INTC, 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 99% of CHAT and 100% of IYW, so the number cannot exceed the smaller coverage.
Which holds more, IYW or CHAT?
CHAT reports 40 stock positions and IYW reports 135. 51.2% of CHAT's weight sits in names IYW does not hold, and 44.8% of IYW's weight in names CHAT does not hold. The ten largest positions are 46.1% of CHAT and 65.6% of IYW.
How do CHAT and IYW differ by sector?
The widest gap is Technology: IYW has 28.7 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.
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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.