ATLASiShares Defense Industrials Active ETF (IDEF): outlook, holdings and fees
iShares Defense Industrials Active ETF (IDEF) is an exchange-traded fund and is managed by BlackRock. The expense ratio is 0.57% and the yield is 0.35%. The ten largest holdings are 31% of the fund.
Fund data as of Oct 14, 2026 · Price Nov 2, 2026
ATLAS view on IDEF
| Last price | $30.46 (+1.2%) |
|---|---|
| ATLAS chance of a higher price in 1 month | 53% |
| Likely 1-month range (50%) | $29.47 – $31.73 |
| Normal 1-day range (±1σ) | ±1.3% |
| Distribution yield | 0.35% |
ATLAS probabilities use the same calibrated model as every stock page. A fair value is shown for companies, not funds; the holdings below link to the fair value of each company.
IDEF fund facts
| Issuer | BlackRock |
|---|---|
| Theme | Aerospace & defense |
| Assets under management | $3.8B |
| Expense ratio | 0.57% |
| Number of holdings | 152 |
| Inception | May 19, 2025 |
| Exchange | NASDAQ |
Under normal market conditions, the fund invests at least 80% of its net assets plus any borrowings for investment purposes in equity securities issued by U.S. and non-U.S. defense and related industrials companies and technology companies and in derivatives that provide investment exposure to the securities included within that policy or to one or more market risk factors associated with such securities. The fund is non-diversified.
IDEF top holdings
| Holding | Sector | Weight |
|---|---|---|
| RTX Corporation RTX | Industrials | 4.82% |
| Palantir Technologies Inc. PLTR | Technology | 4.36% |
| Lockheed Martin Corporation LMT | Industrials | 3.37% |
| Space Exploration Technologies Corp. Class A Common Stock SPCX | Industrials | 3.25% |
| Rolls-Royce Holdings PLC RR | Industrials | 2.96% |
| General Dynamics Corporation GD | Industrials | 2.87% |
| The Boeing Company BA | Industrials | 2.70% |
| Northrop Grumman Corporation NOC | Industrials | 2.60% |
| Palo Alto Networks Inc PANW | Technology | 2.19% |
| Microsoft Corporation MSFT | Technology | 2.01% |
Holdings with an ATLAS page link to their probability range, fair value and earnings calendar.
IDEF sector breakdown
| Sector | Weight |
|---|---|
| Industrials | 69.2% |
| Technology | 27.1% |
| Consumer Cyclicals | 1.6% |
| Basic Materials | 1.5% |
| Energy | 0.3% |
| Communication Services | 0.3% |
By region: North America 64.3%, Europe Developed 12.6%, Asia Developed 9.4%, Japan 5.3%, United Kingdom 4.6%.
IDEF returns and risk
| Year to date | +1.3% |
|---|---|
| 1 year | -3.5% |
| Volatility (3 years) | 0.0% |
| Sharpe ratio (3 years) | 0.00 |
Past returns do not guarantee future results.
IDEF: frequently asked questions
What does IDEF invest in?
iShares Defense Industrials Active ETF invests in a portfolio of securities. Its largest holdings are RTX Corporation (4.8%), Palantir Technologies Inc. (4.4%), Lockheed Martin Corporation (3.4%), Space Exploration Technologies Corp. Class A Common Stock (3.2%), Rolls-Royce Holdings PLC (3.0%).
What is the IDEF expense ratio?
0.57% a year: about $57.00 for every $10,000 invested.
What is the IDEF dividend yield?
0.35%. ATLAS does not hold the exact distribution dates for ETFs.
Will IDEF go up?
Nobody can know. The ATLAS model puts the chance of a higher price in one month at 53%, with a likely range (50%) of $29.47 to $31.73 from $30.46 today. It is a probability, not a prediction.
How has IDEF performed?
Year to date +1.3%, one year -3.5%. Past returns do not guarantee future results.
Similar ETFs: Aerospace & defense
Educational information, not investment advice. Disclaimer