iShares Defense Industrials Active ETF (IDEF)

NASDAQ: IDEFExchange-traded fund from BlackRock.

  • Expense ratio0.57%
  • Net assets$3.66B
  • Dividend yield0.35%
  • 1-year return-2.82%
  • Holdings152

IDEF ETF price chart

IDEF quote & trading statistics

IDEF performance

Total return · as of October 18, 2026
  • YTD-1.69%
  • 1 year-2.82%
1Y volatility
20.96%
3Y volatility
0.00%
3Y Sharpe ratio
0.00

Returns include reinvested distributions; 3-, 5- and 10-year figures are annualized.

IDEF top 10 holdings

iShares Defense Industrials Active ETF largest holdings by weight
#SymbolNameWeight
1RTXRTX Corporation5.03%
2PLTRPalantir Technologies Inc.4.27%
3LMTLockheed Martin Corporation3.69%
4GDGeneral Dynamics Corporation3.08%
5BAThe Boeing Company2.89%
6SPCXSpace Exploration Technologies Corp. Class A Common Stock2.86%
7RRRolls-Royce Holdings PLC2.86%
8NOCNorthrop Grumman Corporation2.81%
9MSFTMicrosoft Corporation2.02%
10AIRAirbus Group SE2.01%

The top 10 holdings make up 31.5% of the fund (152 holdings in total). As of October 18, 2026.

IDEF sector weights

Industrials
68.6%
Technology
27.7%
Consumer Cyclical
1.7%
Basic Materials
1.4%
Energy
0.3%
Communication Services
0.2%

IDEF region weights

North America
65.1%
Europe Developed
13.3%
Asia Developed
8.1%
Japan
5.3%
United Kingdom
4.9%
Africa/Middle East
1.7%
Australasia
1.4%
Europe Emerging
0.6%
Latin America
0.3%

IDEF asset allocation

U.S. stocks
60.3%
Non-U.S. stocks
36.9%
Cash
0.6%

IDEF market-cap breakdown

Large cap
42.0%
Mid cap
20.6%
Mega cap
18.1%
Small cap
13.1%
Micro cap
3.8%

About iShares Defense Industrials Active ETF

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 ETF FAQ

What is the IDEF expense ratio?

iShares Defense Industrials Active ETF has a net expense ratio of 0.57%, or $57.00 a year for every $10,000 invested.

How much money is in IDEF?

iShares Defense Industrials Active ETF has about $3.66B in net assets.

What are the top holdings of IDEF?

The largest positions in IDEF are RTX Corporation (5.03%), Palantir Technologies Inc. (4.27%), Lockheed Martin Corporation (3.69%). The fund holds 152 securities in total.

How has IDEF performed?

IDEF returned -2.82% over the past year, including reinvested distributions.

Does IDEF pay dividends?

IDEF has a dividend yield of 0.35%.

When was IDEF launched?

iShares Defense Industrials Active ETF began trading on May 19, 2025.

ETFs similar to IDEF

Funds that track the same index or whose top-10 holdings overlap most with IDEF's. Overlap: shared top-10 weight as a share of the larger top-10 total of the two funds.

ETFs with holdings most similar to IDEF, compared by expense ratio, assets and 1-year return
SymbolFundOverlapExpense ratioNet assets1-year return
IDEFiShares Defense Industrials Active ETF—0.57%$3.66B-2.82%
WDGFWisdomTree Global Defense Fund67%—$5.2M-6.96%