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IDEFvsITAETF Comparison
iShares U.S. Aerospace & Defense ETF
iShares Defense Industrials Active ETF (IDEF) belongs to the US Large Cap segment. iShares U.S. Aerospace & Defense ETF (ITA) is part of the segment. IDEF's top 3 sector exposures are Industrials, Information Technology and Materials. In contrast, ITA's top sector exposures are Industrials, Materials and Information Technology. IDEF is more expensive with a Total Expense Ratio (TER) of 0.55%, versus 0.38% for ITA. IDEF is up 14.67% year-to-date (YTD) with +$69M in YTD flows. ITA performs worse with 11.29% YTD performance, and +$2.09B in YTD flows. Run a side-by-side ETF comparison of IDEF and ITA below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
IDEF vs ITA performance and flow charts
Performance
Cumulative Flows
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IDEF ITA | +2.70%+3.40% | +15.86%+14.68% | +14.67%+11.29% | n/a+62.04% | n/a+117.61% | n/a+142.83% |
| Flows | IDEF ITA | +$55M+$966M | +$69M+$2.35B | +$69M+$2.09B | -+$5.79B | -+$4.59B | -+$7.07B |
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IDEF ITA | +22.74%+22.87% | n/a+22.68% | n/a+18.52% | n/a+19.65% |
| Max drawdown | IDEF ITA | -7.18%-7.32% | n/a-15.22% | n/a-15.22% | n/a-18.75% |
| Max drawdown duration | IDEF ITA | 39d39d | n/a37d | n/a37d | n/a227d |
IDEF | ITA | |
Last sale 3/11/2026 at 1:30 PM | $35.45 | $238.68 |
| Previous close 03/11/2026 | $35.72 | $239.72 |
| Consolidated volume 03/11/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
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IDEF | ITA | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
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| Average | ||
| Worst | ||
IDEF | ITA | |
|---|---|---|
| Last price | $35.45 | $238.68 |
| 1D performance | -0.77% | -0.43% |
| AuM | $117.27 M | $16.38 B |
| E/R | 0.55% | 0.38% |
Countries
Sectors
Diversification
Total weight of top 15 holdings out of 15
Total weight of top 15 holdings out of 15
Top 15 holdings
How have the IDEF and ITA ETFs performed in 2026?
As of March 11, 2026, IDEF is up 14.67% year-to-date (YTD), while ITA has returned 11.29%. That puts IDEF better performer ahead so far this year.
Which ETF is attracting more investor money: IDEF or ITA?
Year-to-date, the IDEF ETF saw +$69M in flows, compared to +$2.09B for ITA.
Which ETF is bigger: IDEF or ITA?
As of March 11, 2026, IDEF holds $117.27 M in assets under management (AUM), while ITA manages $16.38 B.
What sectors do the IDEF and ITA ETFs invest in?
IDEF leans toward sectors like Industrials. Meanwhile, ITA focuses on Industrials.
What are the top holdings of the IDEF ETF and ITA ETF?
IDEF top holdings include RAYTHEON TECHNOLOGIES CORPORD, GENERAL DYNAMICS and NORTHROP GRUMMAN. ITA holds in its top three: GENERAL ELECTRIC, RAYTHEON TECHNOLOGIES CORPORD and BOEING U.
Which ETF is more diversified: IDEF or ITA?
IDEF holds 113 securities with 48.99% of its assets in the top 15. ITA has 42 securities and a top 15 weight of 85.29%.
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