I think it depends. Used to work in asset management. Seven investors in our group managing $4.0bn in equity and debt investments. We had complex, up-to-date e

I think it depends. Used to work in asset management. Seven investors in our group managing $4.0bn in equity and debt investments. We had complex, up-to-date excel models for every investment. We’d update them whenever the company released financials or when there were significant changes in rates.