THE SINGLE BEST STRATEGY TO USE FOR PNL

$ In the "function situation" you liquidate the portfolio at $t_1$ realising its PnL (allow me to simplify the notation a tad)$begingroup$ The pnl calculation is completed in two measures. By definition, you price your portfolio as of right now, you benefit your portfolio as of yesterday, and the difference might be your pnl.As well as incremental