There is almost no liquidity at the moment and the prices can be easily manipulated.

Please take note that the prices on blockscan are based on order_matches data and does not necessarily mean it has been settled. There is no api at the moment to get an accurate figure and I am trying to see how best to pull the data out from the db. Once the official web client is out I will work at this again because I will at least have reference data to work with