CIBR vs FDN overlap - what they share and where they differ
CIBR and FDN share 19.7% of their weight across 8 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.
CIBR and FDN
19.7%
8 shared positions
CIBR
First Trust Nasdaq Cybersecurity ETF
Reported positions cover 100% of the fund, 42 positions · Jun 30, 2026
Top 10: 58.1%·Holdings of CIBR
FDN
First Trust Dow Jones Internet Index Fund
Reported positions cover 100% of the fund, 40 positions · Jun 30, 2026
Top 10: 64.5%·Holdings of FDN
Reported positions cover CIBR 100%, FDN 100% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
FDN vs CIBR side by side
CIBRFirst Trust Nasdaq Cybersecurity ETF
42
stock positions reported to the SEC
72.0% of its weight is in 34 names FDN does not hold
FDNFirst Trust Dow Jones Internet Index Fund
40
stock positions reported to the SEC
67.0% of its weight is in 32 names CIBR does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Technology: CIBR has 21.9 points more of it.
The figures side by side
| CIBR | FDN | |
|---|---|---|
| Filing date | Jun 30, 2026 | Jun 30, 2026 |
| Stock positions reported | 42 | 40 |
| Weight of the ten largest | 58.1% | 64.5% |
| Largest position | PANW 9.6% | AMZN 10.0% |
| Held alone | 34 positions, 72.0% | 32 positions, 67.0% |
| Covered by stock positions | 100% | 100% |
Holdings they share
| Stock | In CIBR | In FDN | Counted |
|---|---|---|---|
| CSCOCISCO SYSTEMS INC | 7.75% | 8.54% | 7.75% |
| NETCLOUDFLARE INC | 4.03% | 3.22% | 3.22% |
| ANETARISTA NETWORKS INC | 2.12% | 5.02% | 2.12% |
| DDOGDATADOG INC | 2.09% | 3.53% | 2.09% |
| GOOGLALPHABET INC | 1.87% | 9.98% | 1.87% |
| FFIVF5 INC | 3.41% | 0.96% | 0.96% |
| OKTAOKTA INC | 3.52% | 0.94% | 0.94% |
| AKAMAKAMAI TECHNOLOGIES INC | 2.84% | 0.70% | 0.70% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in CIBR
Only in FDN
Questions people ask
Is CIBR the same as FDN?
19.7% of their weight sits in the same 8 holdings. CIBR also reports PANW, FTNT, CRWD, which the other does not. FDN also reports AMZN, META, BKNG, which the other does not.
How is the overlap between CIBR and FDN 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 CIBR and 100% of FDN, so the number cannot exceed the smaller coverage.
Which holds more, FDN or CIBR?
CIBR reports 42 stock positions and FDN reports 40. 72.0% of CIBR's weight sits in names FDN does not hold, and 67.0% of FDN's weight in names CIBR does not hold. The ten largest positions are 58.1% of CIBR and 64.5% of FDN.
How do CIBR and FDN differ by sector?
The widest gap is Technology: CIBR has 21.9 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.