THE FACT ABOUT PNL THAT NO ONE IS SUGGESTING

$ From the "perform case" you liquidate the portfolio at $t_1$ realising its PnL (allow me to simplify the notation a tad)$begingroup$ The pnl calculation is done in two actions. By definition, you benefit your portfolio as of currently, you price your portfolio as of yesterday, and the main difference are going to be your pnl.But you require to co