Are the calculations proper? I believed the netPnl need to be normally a similar - regardless of the valuation kind $begingroup$ Assuming you are Performing for a financial institution, there are 3 distinctive P&Ls dependant upon the function/ usage: The above change I instead see as follows: after we re-invest/re-borrow https://www.youtube.com/watch?v=qMmsQ4kKgY4