---
ticker: "IDEF"
name: "iShares Defense Industrials Act"
url: "https://etf.net/etf/IDEF"
grade: "B"
score: 58
graded_at: "2026-10-12"
category: "Defense & Aerospace"
category_rank: "7 of 26"
methodology: "https://etf.net/methodology"
---

# IDEF: iShares Defense Industrials Act

Grade **B**, Score 58 of 100. Rank 7 of 26 in Defense & Aerospace.

Graded Oct 12, 2026.

## Grade pillars

| Pillar | Score | Category rank |
| --- | --- | --- |
| Cost | 44 | 15 of 26 |
| Mission | Not scored | — |
| Risk | 63 | 7 of 26 |
| Tradability | 60 | 8 of 26 |
| Holdings | 84 | 4 of 26 |
| Durability | 82 | 5 of 26 |

## Top holdings

The fund holds 166 positions. These are the largest 30, by weight.

| # | Ticker | Name | Weight |
| --- | --- | --- | --- |
| 1 | RTX | Rtx | 5.05% |
| 2 | PLTR | Palantir Technologies Class A | 4.53% |
| 3 | LMT | Lockheed Martin Corp | 3.29% |
| 4 | SPCX | Space Exploration Technologies Cor | 3.13% |
| 5 | RR.L | Rolls-Royce Holdings PLC | 2.91% |
| 6 | GD | General Dynamics Corp | 2.87% |
| 7 | BA | Boeing | 2.83% |
| 8 | NOC | Northrop Grumman Corp | 2.58% |
| 9 | PANW | Palo Alto Networks | 2.14% |
| 10 | MSFT | Microsoft | 2.03% |
| 11 | AIR.PA | Airbus Group | 1.98% |
| 12 | APH | Amphenol Corp Class A | 1.91% |
| 13 | CRWD | Crowdstrike Holdings Class A | 1.89% |
| 14 | HO.PA | Thales SA | 1.72% |
| 15 | 012450.KS | Hanwha Aerospace Ltd | 1.66% |
| 16 | GE | Ge Aerospace | 1.52% |
| 17 | 6503.T | Mitsubishi Electric | 1.49% |
| 18 | AMZN | Amazon.com Inc | 1.48% |
| 19 | 272210.KS | Hanwha Systems Ltd | 1.46% |
| 20 | LDO.MI | Leonardo Finmeccanica Spa | 1.46% |
| 21 | SAAB-B.ST | Saab Class B | 1.45% |
| 22 | 7011.T | Mitsubishi Heavy Industries | 1.37% |
| 23 | FTNT | Fortinet | 1.28% |
| 24 | 047810.KS | Korea Aerospace Industries | 1.20% |
| 25 | AVGO | Broadcom Inc | 0.96% |
| 26 | SAF.PA | Safran SA | 0.96% |
| 27 | ESLT | Elbit Systems | 0.87% |
| 28 | TDG | Transdigm Group | 0.87% |
| 29 | MTSI | Macom Technology Solutions | 0.82% |
| 30 | 7013.T | Ihi | 0.81% |

Source: etf.net, https://etf.net/etf/IDEF. Please cite the page URL.