PNL FOR DUMMIES

$ While in the "function scenario" you liquidate the portfolio at $t_1$ realising its PnL (let me simplify the notation a little)For making The 2 approaches similar you must think about investing/borrowing $PnL_1$ at amount $r$ to make sure that it stays during the technique right until $t_2,.$ At the moment yourStack Trade community is made of 183