15000 - 3600 - 4500 = 5900??

So with today's purchase $4500 of SLB, and $3600 of Lulu booked, somehow me and Arash calc'd that we had $5,900 left in the bank, when actually we have $6,900 left. Leave it to the math guys to mess up some simple arithmetic.
The point is we have enough cash to buy 1 and possibly 2 more positions over the next few weeks. I've started a very simple Google doc spreadsheet and with today's closing prices, we have gained 5% in NAV since we've started.
So we're off and rolling!