Which Aerospace & Defense ETF Is a Better Buy: Big Bets or Broad Exposure?

The iShares U.S. Aerospace & Defense ETF (ITA) offers lower costs (0.37% expense ratio) and stronger 1-year returns (27.2%), but is highly concentrated with top three holdings representing 47% of the portfolio. The Invesco Aerospace & Defense ETF (PPA) provides broader diversification across 62 holdings with tech exposure, delivering superior 5-year growth but at a higher expense ratio (0.58%). The choice depends on whether investors prefer concentrated exposure to major defense contractors or diversified sector exposure.