Data as of .
CIBR vs IDEF: which is really different?
CIBR and IDEF hold 5% of their weight in the same names, and CIBR returned more over the year.
ETFIQ Off-Index Score: IDEF scores higher
How much of it is not the index it is sold as an alternative to?
A percentile among the 349 thematic ETFs with a holdings filing. It is a position in a set, not a rating, and neither end of it is a recommendation. All thematic ETFs ranked by it · How it is computed
5% of the two portfolios are the same securities at the same weight.
What they hold in common
By the books each fund has filed, CIBR and IDEF hold 5% of their money in the same securities at the same weight.
| Only in CIBR | Only in IDEF |
|---|---|
| Palo Alto Networks, Inc. 9.10% | RTX 6.72% |
| Fortinet, Inc. 8.72% | PALANTIR TECHNOLOGIES CLASS A 4.71% |
| CrowdStrike Holdings, Inc. (Class A) 8.66% | LOCKHEED MARTIN CORP 3.62% |
| Cisco Systems, Inc. 6.76% | BOEING 3.32% |
| Broadcom Inc. 6.12% | ROLLS-ROYCE HOLDINGS PLC 3.30% |
| Cloudflare, Inc. (Class A) 4.87% | GENERAL DYNAMICS CORP 2.97% |
| Okta, Inc. 4.20% | USD CASH 2.72% |
| Zscaler, Inc. 3.36% | THALES SA 2.61% |
Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings dated Sep 10, 2026.
Performance, window by window
| Window | Total return | vs the S&P 500 | vs the Nasdaq-100 | |||
|---|---|---|---|---|---|---|
| CIBR | IDEF | CIBR | IDEF | CIBR | IDEF | |
| 3 months | +10.7% | −1.9% | +7.4 pts | −5.2 pts | +11.5 pts | −1.1 pts |
| 6 months | +45.3% | −8.5% | +29.3 pts | −24.5 pts | +24.6 pts | −29.2 pts |
| 1 year | +25.6% | +4.9% | +8.1 pts | −12.6 pts | +2.6 pts | −18.1 pts |
| 3 years | +103.7% | not published | +25.8 pts | not published | +8.6 pts | not published |
| Since launch | +401.1% | +26.5% | +60.0 pts | −6.4 pts | −217.5 pts | −13.6 pts |
| CIBR First Trust NASDAQ Cybersecurity ETF Holds 43 stocks in cybersecurity, 62% of its weight in S&P 500 companies | IDEF iShares Defense Industrials Active ETF Holds 152 stocks in defense, 36% of its weight in S&P 500 companies | |
|---|---|---|
| Issuer | First Trust | iShares |
| Theme | Cybersecurity | Defense |
| In the S&P 500 | 62.2% | 36.1% |
| Active share vs the S&P 500 | 90.8% | 95.9% |
| In the Nasdaq-100 | 48.1% | 8.5% |
| Holdings | 43 | 152 |
| Top ten, share of the fund | 57.7% | 35.2% |
| Expense ratio | 0.58% | not published |
| Fee for the differing part | 0.64% | not published |
| Total return, 1 year | +25.6% | +4.9% |
| vs the S&P 500 | +8.1 pts | −12.6 pts |
| vs the Nasdaq-100 | +2.6 pts | −18.1 pts |
| Below its high | −7.6% | −13.9% |
CIBR in plain words
By weight, 62% of CIBR's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 91%. The top ten holdings are 58% of the fund across 43 positions, as published by its issuer for Sep 10, 2026. Over the year to Sep 11, 2026 the fund returned +25.6% with distributions reinvested against +17.5% for the S&P 500, so a holder was ahead by 8.1 pts. It sits 7.6% below its all-time high of Aug 13, 2026.
IDEF in plain words
By weight, 36% of IDEF's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 96%. The top ten holdings are 35% of the fund across 152 positions, as published by its issuer for Sep 10, 2026. Over the year to Sep 11, 2026 the fund returned +4.9% with distributions reinvested against +17.5% for the S&P 500, so a holder was behind by 12.6 pts. It sits 13.9% below its all-time high of Mar 2, 2026.
Questions people ask
- Do CIBR and IDEF hold the same stocks?
- By their latest filings, 5% of their books are the same securities at the same weight, which is mostly different names. Overlap is the sum of the smaller weight of every security they share.
- Which is more different from the S&P 500, CIBR or IDEF?
- CIBR has 62% of its weight in S&P 500 names and IDEF has 36%, so IDEF differs more from the index.
Other comparisons
Where these figures came from
ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.
Cite this page. ETFIQ, CIBR against IDEF, data as of Sep 11, 2026. https://etfiq.com/compare/themes/CIBR-IDEF Free to use with attribution; the underlying files are at Open data.