Alleged Best Practices to Whom? Peter J. Butler, CFA, ASA, MBA, founder of Valtrend, LLC and inventor of the Total Cost of Equity Calculator (TCOE), responds to comments made by Robert Reilly and Connor Thurman regarding best practices used to arrive at the company specific risk; the latter article did not discuss the TCOE and here he “key[s] in on Part III—the section which addresses empirical evidence in ...