TechniqueDeals and M&ALetter located
The acquired brand's market share is the cleanest test of an acquisition
Judge an acquisition by what happened to the acquired brand's share of its market afterwards; the number is public and hard to argue with.
Post-deal assessment, consumer and brand coverage, and any activist case built on competitive evidence rather than financial engineering.
From Trian's July 2017 letter to Procter & Gamble shareholders · Trian Fund Management