Microsoft faces AI disruption that could erode its software moat and compress its high multiple. Chris Hohn, the best stock picker ever and not one to move lightly, cut Microsoft from 10% to 1% of his portfolio, about $8 billion, citing AI disruption. The question that matters is whether a business can be disrupted: when code becomes a commodity the moat erodes, and multiple compression from a high base does severe damage. x.comÂ

