$ During the "get the job done case" you liquidate the portfolio at $t_1$ realising its PnL (allow me to simplify the notation a bit) $begingroup$ Assuming that you will be Doing the job for a lender, there are actually a few unique P&Ls depending on the function/ use: In https://collinainsv.blog-eye.com/34218455/everything-about-pnl