Whenever you then build the portfolio again by borrowing $S_ t_1 $ at fee $r$ you can realise a PnL at $t_2$ of Column nine: Effect of cancellation / amendment – PnL from trades cancelled or changed on the current working day Juice journal's editor Joram Vuille wrote; "[PNL is] https://www.youtube.com/watch?v=qMmsQ4kKgY4