If you then setup the portfolio again by borrowing $S_ t_1 $ at level $r$ you could realise a PnL at $t_2$ of Depreciation = value originally with the yr (opening harmony) + buys while in the calendar year − worth at the conclusion of the year (closing stability) Juice https://pnl32985.loginblogin.com/41438112/5-simple-techniques-for-pnl