WHAT DOES PNL MEAN?

$ In the "get the job done situation" you liquidate the portfolio at $t_1$ realising its PnL (let me simplify the notation a bit)$begingroup$ The pnl calculation is completed in two steps. By definition, you benefit your portfolio as of right now, you benefit your portfolio as of yesterday, and the main difference are going to be your pnl.Stack Exc