IDEF vs MISL
BlackRock ETF Trust iShares Defense Industrials and Tech Active ETF against First Trust Indxx Aerospace & Defense ETF: cost, size, returns, what they hold and how much of it is the same.
Overlap by weight
43%
35 shared positions
Fee gap
5 bp
IDEF is cheaper
1-year return gap
0.9 pts
MISL is ahead
Larger fund
IDEF
$3.7B
Side by side
| IDEF | MISL | |
|---|---|---|
| Fund | BlackRock ETF Trust iShares Defense Industrials and Tech Active ETF | First Trust Indxx Aerospace & Defense ETF |
| Issuer | iShares | First Trust |
| Category | Aerospace & Defense | Aerospace & Defense |
| Expense ratio | 0.55% | 0.60% |
| Assets | $3.7B | $667M |
| Average daily dollar volume | $60M | $3.9M |
| Listed | May 19, 2025 | Oct 25, 2022 |
| FrenzyCap score | 73 | 49 |
| 1-month return | −5.0% | −3.1% |
| 3-month return | −5.5% | −4.7% |
| Year to date | −1.3% | −3.3% |
| 1-year return | −4.1% | −3.2% |
| 30-day volatility | 13.4% | 13.3% |
| Worst drawdown, 1 year | −17.8% | −19.8% |
| Trailing 12-month yield | 0.35% | 0.07% |
| Holdings | 174 | 45 |
| Top 10 weight | 37.3% | 61.1% |
| Look-through P/E | 38.0 | 36.4 |
| Holdings vs fair value | +8.1% | +2.2% |
| Holdings above 200-day average | 27% | 13% |
| Net flow, latest 3 reported months | — | −$662M thru Jun 2026 |
| 30-day implied volatility | — | 33.2% |
| Holdings as of | as of Oct 20, 2026issuer data | as of Oct 20, 2026issuer data |
Returns are price returns and exclude distributions. Flows are each fund's own latest reported months and may not cover the same period.
Largest shared holdings
44% of IDEF · 93% of MISL| Holding | IDEF | MISL |
|---|---|---|
| RTX | 7.06% | 8.47% |
| LMT | 4.68% | 4.39% |
| GD | 4.07% | 4.24% |
| BA | 3.93% | 8.15% |
| NOC | 3.83% | 4.53% |
| PLTR | 2.96% | 7.51% |
| SPCX | 2.94% | 7.41% |
| GE | 1.75% | 7.93% |
| TDG | 1.07% | 4.20% |
| HWM | 0.82% | 3.83% |
| LHX | 0.68% | 4.28% |
| HONA | 0.61% | 4.13% |
| LDOS | 0.55% | 1.76% |
| RKLB | 0.54% | 3.04% |
| PSN | 0.51% | 0.52% |
| MRCY | 0.50% | 0.50% |
| SAIC | 0.50% | 0.62% |
| WWD | 0.50% | 2.10% |
| KTOS | 0.49% | 0.80% |
| HEI | 0.47% | 3.97% |
| CW | 0.46% | 2.01% |
| TXT | 0.46% | 1.46% |
| AVAV | 0.45% | 0.66% |
| KRMN | 0.43% | 0.51% |
| AIR | 0.43% | 0.44% |
Sector mix of the stock holdings
| Sector | IDEF | MISL | Gap |
|---|---|---|---|
| Industrials | 40.6% | 73.6% | −33.0% |
| Technology | 19.4% | 19.9% | −0.5% |
| Materials | 2.9% | 4.6% | −1.7% |
| Communication Services | 0.6% | 1.8% | −1.2% |
| Consumer Discretionary | 1.2% | 0.0% | +1.2% |
| Energy | 0.2% | 0.0% | +0.2% |
| Utilities | 0.0% | 0.0% | +0.0% |
More: full overlap table · IDEF holdings · MISL holdings
Fund data comes from each fund's SEC filings and issuer disclosures and is shown with the date it is as of. SEC portfolio and flow filings become public about 60 days after the period they cover. Nothing here is investment advice; see Terms.