WHAT DOES PNL MEAN?

$ Now you say $V_t$ may be the risky asset. Really bewildering. Edit the post to create this crystal obvious. We can contemplate what on earth is a PnL after we understand what Now we have invested in. $endgroup$Trader A has designed some hefty PnL, In the meantime Trader B will come out with absolutely nothing whatsoever and his missed out on vola