The article has wrong facts. The columbia journalism review author double counted inflation. The NYTimes piece he cites has already adjusted for inflation in the 1967 IBM Market cap.
CORRECTION: Let me rap myself on the knuckles here for the above update, which was flat incorrect. As commenter JD points out, IBM’s 1967 market cap was not $1.3 trillion in real dollars, it was $192.3 billion. The NYT’s data was already adjusted for inflation.
