Yesterday I deposited an additional $25K in my account, increasing my total assets under management to roughly $171K. Obviously this won't impact my IRR calculation - afterall this is simply an increase in AUM and not appreciation/depreciation of the stocks/options I hold.
Additionally, since I track my returns relative to the S&P, I'll need to update my hypothetical S&P portfolio to keep everything on an apples-to-apples basis. To do this I simply assume I purchased $25K of the SPY index fund at yesterday's closing price of $133.26, thereby creating a similar growth in AUM.