Munger Mode rating: 3 out of 5 — Hold. Our own rating from the research report below, on business quality first: moat durability and management, with price separating the top three.
Ecolab is one of the genuinely wonderful businesses in the S&P 500 — a razor-and-blade franchise in water, hygiene, and infection prevention with real switching costs, demonstrated pricing power, and a service moat that has compounded for nearly a century. Management under Christophe Beck has executed well operationally, expanding operating margins from roughly 13% to over 18% in four years while sustaining double-digit EPS growth. But two things keep us from committing new capital at today's price. First, the valuation: at roughly 35x forward earnings and north of 40x free cash flow, the market is paying full freight for the quality plus a healthy premium for the AI data-center story.
Recent filings analysed: 10-Q (2026-08-06), 8-K (2026-07-28), 8-K (2026-05-29), 8-K (2026-05-11).
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