New money coming into my fund is negatively affecting my fund performance. This is so because if I'm holding onto a stock at an average price of $20, and when the new money is coming in, the stock maybe worth $25, and I would have to add more of that share at a higher price. Or on a profitable short position, I would be adding more onto a profitable position at a lower price. How can I keep my performance up while adding new money coming into the fund. Any thoughts or ideas on this would be greatly appreciated.