I created a prediction market to test creation, and settling. It is asset BTCPREDICT. I originally set it as an over under on the price of bitcoin at $450. Bitcoin then decided to drop $90 and rebound $30. As no bets have been matched, I have changed the over under price to $380. I will almost certainly just end up selling some to myself before I settle the asset, but I wanted to be clear about the changes to the asset in case anyone does decide to buy in.