Munger Mode rating: 2 out of 5 — Sell. Our own rating from the research report below, on business quality first: moat durability and management, with price separating the top three.
Written in the voice of Warren Buffett and Charlie Munger, from the Q2 2026 10-Q (quarter ended June 30, 2026), recent earnings communications, and current market data. This is one of the more painful reports we have written, because buried inside CoStar Group is a business we would love to own — a near-monopoly commercial real estate information franchise with forty years of proprietary data, subscription revenue, and genuine pricing power. Sixty-one consecutive quarters of double-digit revenue growth is a record very few companies on earth can match.
Recent filings analysed: 10-Q (2026-07-29), 8-K (2026-07-28), 8-K (2026-07-13), 8-K (2026-06-25).
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