TAN vs XSD overlap - what they share and where they differ
TAN and XSD share 2.0% of their weight across 1 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.
TAN and XSD
2.0%
1 shared positions
TAN
Invesco Solar ETF
Reported positions cover 100% of the fund, 31 positions · May 31, 2026
Top 10: 65.2%·Holdings of TAN
XSD
State Street(R) SPDR(R) S&P(R) Semiconductor ETF
Reported positions cover 100% of the fund, 47 positions · Jun 30, 2026
Top 10: 29.0%·Holdings of XSD
Reported positions cover TAN 100%, XSD 100% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
XSD vs TAN side by side
TANInvesco Solar ETF
31
stock positions reported to the SEC
88.3% of its weight is in 30 names XSD does not hold
XSDState Street(R) SPDR(R) S&P(R) Semiconductor ETF
47
stock positions reported to the SEC
98.0% of its weight is in 46 names TAN does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Technology: XSD has 45.2 points more of it.
The figures side by side
| TAN | XSD | |
|---|---|---|
| Filing date | May 31, 2026 | Jun 30, 2026 |
| Stock positions reported | 31 | 47 |
| Weight of the ten largest | 65.2% | 29.0% |
| Largest position | FSLR 11.7% | MXL 3.8% |
| Held alone | 30 positions, 88.3% | 46 positions, 98.0% |
| Covered by stock positions | 100% | 100% |
Holdings they share
| Stock | In TAN | In XSD | Counted |
|---|---|---|---|
| FSLRFirst Solar, Inc. | 11.74% | 1.99% | 1.99% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in TAN
Only in XSD
Questions people ask
Is TAN the same as XSD?
2.0% of their weight sits in the same 1 holdings. TAN also reports NXT, ENPH, ENLT, which the other does not. XSD also reports MXL, ALGM, ALAB, which the other does not.
How is the overlap between TAN and XSD 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 TAN and 100% of XSD, so the number cannot exceed the smaller coverage.
Which holds more, XSD or TAN?
TAN reports 31 stock positions and XSD reports 47. 88.3% of TAN's weight sits in names XSD does not hold, and 98.0% of XSD's weight in names TAN does not hold. The ten largest positions are 65.2% of TAN and 29.0% of XSD.
How do TAN and XSD differ by sector?
The widest gap is Technology: XSD has 45.2 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.