Good article. According to Wiki (which I rarely trust), the Kelly Criterion was developed in 1956. I have a document entitled “Valuation Techniques” by Benjamin Graham that was published in 1947. The equation is nearly identical to the Kelly Criterion. Therefore, it is my belief that Graham composed the equation long before Kelly did and although Pabrai has written about the Kelly Formula in his book, I believe Buffett, Munger, Whitman, and especially Schloss (as I have Schloss documents using the formula) all used Benjamin Grahams formula which is virtually the same but preceded the Kelly Formula.
It is:

G = Gain in points if successful

L = Loss in points if unsuccessful

C = Chance of success in %

Y = Time of holding in years

P = Current Price

(GC) – L(100-C) / YP = %

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