Here is an interesting excerpt taken from a Warren Buffett Partnership Letter written in 1964:
During an interview with the RDI Économie team, portfolio manager Jean-Paul Giacometti answered the following question: "In mutual funds, why not show gross returns rather than net returns?"
The correction we had been waiting for finally arrived, taking the S&P 500 down roughly 20%, enough to be qualified (theoretically) as a bear market.