Makes me wonder why they don't just invest all the money under management in that fund.

Edit: They are capped and take out profits...so I wonder if the cap is the magic or if they use better algorithms for their private fund (only natural since it's their own money). They would have the same inputs (their data sets, infrastructure, programming language etc.) so I wonder if they have two very different models (<=10 billion and >10 billion) or how those are linked.