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IDEFvsFIDUETF Comparison

ETF 1

IDEF

iShares Defense Industrials Active ETF

Full IDEF fund page

VS

ETF 2

FIDU

Fidelity MSCI Industrials Index ETF

This fund is part of

US Industrials

-0.39%

Full FIDU fund page

iShares Defense Industrials Active ETF (IDEF) belongs to the segment. Fidelity MSCI Industrials Index ETF (FIDU) is part of the US Industrials segment. IDEF's top 3 sector exposures are Industrials, Technology and Non-Energy Materials. In contrast, FIDU's top sector exposures are Industrials, Business Services and Non-Energy Materials. IDEF is more expensive with a Total Expense Ratio (TER) of 0.55%, versus 0.084% for FIDU. IDEF is up 5.24% year-to-date (YTD) with +$4.48B in YTD flows. FIDU performs better with 18.42% YTD performance, and +$515M in YTD flows. Run a side-by-side ETF comparison of IDEF and FIDU below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.

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IDEF vs FIDU performance and flow charts

Performance

Cumulative Flows

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Daily, global ETF data for advanced analysis or integration into apps (API), from our partner Trackinsight.

Data Services

Historic performance and flows

Data as of 07/28/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	IDEF FIDU	+3.48%-1.08%	-1.24%+4.50%	+5.24%+18.42%	+13.19%+20.41%	n/a+73.98%	n/a+91.69%
Flows	IDEF FIDU	+$99M+$49M	+$825M+$220M	+$4.48B+$515M	+$4.49B+$535M	-+$859M	-+$752M

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	IDEF FIDU	+23.95%+19.99%	+21.62%+17.69%	n/a+17.45%	n/a+18.41%
Max drawdown	IDEF FIDU	-9.59%-5.04%	-15.58%-12.26%	n/a-20.28%	n/a-22.91%
Max drawdown duration	IDEF FIDU	58d27d	148d64d	n/a212d	n/a589d

Trading data

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	IDEF	FIDU
Last sale 7/28/2026 at 1:30 PM	$32.43	$96.59
Previous close 07/28/2026	$32.40	$97.08
Consolidated volume 07/28/2026
Average volume 30 days
Average discount or premium 30 days
Average Bid/Ask spread 30 days

Replication quality

Data as of June 30, 2026

1-year trailing difference

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IDEF

is actively managed and doesn’t replicate an index

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	IDEF	FIDU
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst

Main metrics

Last update 7/28/2026 at 1:30 PM

Live

Closed

	IDEF	FIDU
Last price	$32.43	$96.59
1D performance	+0.09%	-0.50%
AuM	$4.25 B	$2.36 B
E/R	0.55%	0.084%

Characteristics

	IDEF	FIDU
Management strategy	Active	Passive
Provider	iShares	Fidelity
Benchmark	-	MSCI USA IMI Industrials 25/50 Index
N° of holdings	114	355
Asset class	-	-
Trailing 12m distribution yield	Join	Join
Inception date	May 19, 2025	October 21, 2013
ESG	No	No

More IDEF data on Trackinsight

More FIDU data on Trackinsight

Exposure

Countries

IDEF

USA

59.6%

United Kingdom

8.89%

Other

31.51%

FIDU

USA

93.07%

Other

6.93%

Sectors

IDEF

Industrials

84.69%

Technology

8.38%

Other

6.93%

FIDU

Industrials

85.33%

Other

14.67%

Diversification

IDEF

Total weight of top 15 holdings out of 15

54.39%

FIDU

Total weight of top 15 holdings out of 15

39.88%

Top 15 holdings

Data as of June 30, 2026

IDEF

RTX Corp.

8.38%

Lockheed Martin Corp.

6.87%

Rolls-Royce Holdings Plc

5.18%

The Boeing Co.

4.99%

General Dynamics Corp.

4.45%

Fortinet, Inc.

3.36%

Northrop Grumman Corp.

3.32%

BAE Systems Plc

2.73%

GE Aerospace

2.58%

Airbus SE

2.50%

Thales SA

2.33%

Howmet Aerospace, Inc.

2.20%

Elbit Systems Ltd.

2.00%

US84615Q1031

1.80%

BWX Technologies, Inc.

1.71%

FIDU

Caterpillar, Inc.

6.74%

GE Aerospace

5.32%

GE Vernova, Inc.

4.01%

RTX Corp.

3.44%

Eaton Corp. Plc

2.23%

The Boeing Co.

2.23%

Union Pacific Corp.

2.18%

Deere & Co.

2.10%

Honeywell International, Inc.

2.01%

Uber Technologies, Inc.

1.77%

Parker-Hannifin Corp.

1.71%

Vertiv Holdings Co.

1.62%

Trane Technologies Plc

1.53%

Howmet Aerospace, Inc.

1.50%

Quanta Services, Inc.

1.48%

Frequently asked questions about IDEF and FIDU

How have the IDEF and FIDU ETFs performed in 2026?

As of July 28, 2026, IDEF is up 5.24% year-to-date (YTD), while FIDU has returned 18.42%. That puts FIDU better performer ahead so far this year.

Which ETF is attracting more investor money: IDEF or FIDU?

Year-to-date, the IDEF ETF saw +$4.48B in flows, compared to +$515M for FIDU.

Which ETF is more volatile: IDEF or FIDU?

Over the past year, IDEF had a volatility of 21.62%, while FIDU experienced 17.69%.

Which ETF is bigger: IDEF or FIDU?

As of July 28, 2026, IDEF holds $4.25 B in assets under management (AUM), while FIDU manages $2.36 B.

What sectors do the IDEF and FIDU ETFs invest in?

IDEF leans toward sectors like Industrials and Technology. Meanwhile, FIDU focuses on Industrials.

What are the top holdings of the IDEF ETF and FIDU ETF?

IDEF top holdings include RTX Corp., Lockheed Martin Corp. and Rolls-Royce Holdings Plc. FIDU holds in its top three: Caterpillar, Inc., GE Aerospace and GE Vernova, Inc..

Which ETF is more diversified: IDEF or FIDU?

IDEF holds 117 securities with 54.39% of its assets in the top 15. FIDU has 359 securities and a top 15 weight of 39.88%.

ETF Comparison: iShares Defense Industrials Active ETF (IDEF) Versus iShares U.S. Aerospace & Defense ETF (ITA)

April 8, 2026

IDEF

IDEFvsFIDUETF Comparison

iShares Defense Industrials Active ETF

Fidelity MSCI Industrials Index ETF

IDEF vs FIDU performance and flow charts

Performance

Cumulative Flows

Get all the metrics on this page, and more, through a reliable ETF data feed

Countries

Sectors

Diversification

Top 15 holdings

How have the IDEF and FIDU ETFs performed in 2026?

As of July 28, 2026, IDEF is up 5.24% year-to-date (YTD), while FIDU has returned 18.42%. That puts FIDU better performer ahead so far this year.

Which ETF is attracting more investor money: IDEF or FIDU?

Year-to-date, the IDEF ETF saw +$4.48B in flows, compared to +$515M for FIDU.

Which ETF is more volatile: IDEF or FIDU?

Over the past year, IDEF had a volatility of 21.62%, while FIDU experienced 17.69%.

Which ETF is bigger: IDEF or FIDU?

As of July 28, 2026, IDEF holds $4.25 B in assets under management (AUM), while FIDU manages $2.36 B.

What sectors do the IDEF and FIDU ETFs invest in?

IDEF leans toward sectors like Industrials and Technology. Meanwhile, FIDU focuses on Industrials.

What are the top holdings of the IDEF ETF and FIDU ETF?

IDEF top holdings include RTX Corp., Lockheed Martin Corp. and Rolls-Royce Holdings Plc. FIDU holds in its top three: Caterpillar, Inc., GE Aerospace and GE Vernova, Inc..

Which ETF is more diversified: IDEF or FIDU?

IDEF holds 117 securities with 54.39% of its assets in the top 15. FIDU has 359 securities and a top 15 weight of 39.88%.

ETF Comparison: iShares Defense Industrials Active ETF (IDEF) Versus iShares U.S. Aerospace & Defense ETF (ITA)

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