No, the Openfund price is determined by taking the middle price between the lowest selling order price and the highest buying order price. A day or two ago, someone executed a market sell order for quite a few Openfund tokens, causing a significant gap between the buying and selling orders. As per the usual practice, Openfund calculated its price using the mentioned formula.

Subsequently, I decided to experiment and placed a buying order for 1 Openfund just below the lowest selling order. This action artificially inflated the average price it took :)