You can now take either side of a prediction market in the GUI.
To celebrate I have created two new prediction markets
SPORTS.NFLAFC will track the AFC Championship game. Short and sell if you believe that Patriots will win. Buy and hold if you think the Broncos will win.
SPORTS.NFLNFC will track the NFC Championship game. Short and sell if you believe the Cardinals will win. Buy and hold if you think Think the Panthers will win.