FXL vs IYW overlap - what they share and where they differ
FXL and IYW share 30.9% of their weight across 109 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.
FXL and IYW
30.9%
109 shared positions
FXL
First Trust Technology AlphaDEX Fund
Reported positions cover 100% of the fund, 110 positions · Jul 31, 2026
Top 10: 18.1%·Holdings of FXL
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 FXL 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 FXL side by side
FXLFirst Trust Technology AlphaDEX Fund
110
stock positions reported to the SEC
0.4% of its weight is in 1 names IYW does not hold
IYWiShares U.S. Technology ETF
148
stock positions reported to the SEC
8.0% of its weight is in 39 names FXL does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Technology: IYW has 6.9 points more of it.
The figures side by side
| FXL | IYW | |
|---|---|---|
| Filing date | Jul 31, 2026 | Jul 31, 2026 |
| Stock positions reported | 110 | 148 |
| Weight of the ten largest | 18.1% | 67.3% |
| Largest position | CTSH 2.4% | NVDA 13.7% |
| Held alone | 1 positions, 0.4% | 39 positions, 8.0% |
| Covered by stock positions | 100% | 100% |
Holdings they share
| Stock | In FXL | In IYW | Counted |
|---|---|---|---|
| AMDADVANCED MICRO DEVICES INC | 1.36% | 3.06% | 1.36% |
| PANWPALO ALTO NETWORKS INC | 1.29% | 1.40% | 1.29% |
| MUMICRON TECHNOLOGY INC | 1.18% | 2.97% | 1.18% |
| LRCXLAM RESEARCH CORP | 1.12% | 1.91% | 1.12% |
| APHAMPHENOL CORP | 1.21% | 1.03% | 1.03% |
| CRWDCROWDSTRIKE HOLDINGS INC | 1.32% | 1.00% | 1.00% |
| GOOGLALPHABET INC | 0.99% | 11.23% | 0.99% |
| WDCWESTERN DIGITAL CORP | 1.41% | 0.96% | 0.96% |
| ADIANALOG DEVICES INC | 1.22% | 0.94% | 0.94% |
| TXNTEXAS INSTRUMENTS INC | 0.92% | 1.31% | 0.92% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in FXL
Only in IYW
Questions people ask
Is FXL the same as IYW?
30.9% of their weight sits in the same 109 holdings. FXL also reports NIQ, which the other does not. IYW also reports INTC, PLTR, ORCL, which the other does not.
How is the overlap between FXL 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 FXL and 100% of IYW, so the number cannot exceed the smaller coverage.
Which holds more, IYW or FXL?
FXL reports 110 stock positions and IYW reports 148. 0.4% of FXL's weight sits in names IYW does not hold, and 8.0% of IYW's weight in names FXL does not hold. The ten largest positions are 18.1% of FXL and 67.3% of IYW.
How do FXL and IYW differ by sector?
The widest gap is Technology: IYW has 6.9 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.
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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.