iShares U.S. Aerospace & Defense ETF

iShares U.S. Aerospace & Defense ETF (ITA) is a passively managed fund issued by iShares, the ETF franchise of BlackRock. It tracks the S&P Aerospace & Defense Select Industry Index, a cap-weighted benchmark of U.S. aerospace and defense companies. ITA is the Physical AI defense/autonomy-layer lens, concentrated in the prime contractors with RTX as a leading weight. In the PXS map, ITA expresses the sovereign-and-industrial side of the Physical AI universe: the platforms, sensors, and systems that underpin defense and autonomous capability. Coverage is limited to direct, issuer-reported positions in already-mapped companies, not the complete portfolio, and this is a research map rather than a recommendation. ITA is most useful for seeing where the largest aerospace-and-defense vehicle's index weight lands across the mapped Physical AI companies, and for comparing against PPA's broader, more evenly weighted defense exposure. Its largest mapped positions are RTX (16.25%), Howmet Aerospace (4.60%), Northrop Grumman (4.43%), and L3Harris (3.44%), concentrating the fund in the prime contractors of the mapped defense layer.