In a bold move that defies traditional investment advice, an everyday investor named Etienne Breton has built a $2 million portfolio by investing exclusively in software firm Palantir PLTR.

Palantir stock fell sharply late Friday. The retreat in Palantir stock coincided with a rebalancing of Russell U.S. indexes.

Forget the Magnificent Seven tech giants, defence stocks and gold are the winners in this volatile economic and geopolitical ...