58% is enough to clear a 50% threshold. I didn't say that 58% immediately means monopoly: it doesn't necessarily mean it's a monopoly, but it can mean it. I wa

58% is enough to clear a 50% threshold. I didn't say that 58% immediately means monopoly: it doesn't necessarily mean it's a monopoly, but it can mean it. I was correcting the OP who claimed that "Apple isn't even close to a majority in any markets!" In fact, Apple is a majority — and a sizable one — in the market US courts care most about: the US market. It's probably a monopoly for a variety of reasons, including its majority market power — which as you point out is typically one of the necessary (but not sufficient) markers of monopoly — as other commenters have pointed out; e.g. its exclusionary conduct such as banning XCloud, Fortnite, etc.