Exchange-traded funds that buy stocks linked to artificial intelligence were rallying Monday, rebounding from their big selloff on Friday. The iShares A.I. Innovation and Tech Active ETF was up 2.9%, rebounding from its 4.5% drop on Friday, according to FactSet data, at last check. The Roundhill Generative AI & Technology ETF was climbing 1.6%, in a partial recovery from its 4.3% loss Friday.