Morningstar 2026-03-18-2
Morningstar's Largest-Ever Moat Review: 37 Downgrades and the Two Upgrades That Matter More
Morningstar halved its moat duration horizon for application-layer software from 20 years to 10, triggering 37 downgrades in the largest review since the firm started rating moats. The fair value cuts (Adobe at 32%, ServiceNow at 18%, Salesforce at 7%) are a lagging indicator: these stocks were already down 20-30% before the methodology caught up. The buried signal is in the two upgrades: CrowdStrike and Cloudflare both went to wide moat because AI expands the attack surface and network traversal that security infrastructure must handle. When 37 moats narrow and two widen, the widening tells you where the new toll bridges are.