On STX, players can buy or sell contracts on a market. All of our markets are binary options meaning the outcome of the market will always result in a YES or NO.  If a market results as YES the contracts settle worth $100, if the market results as NO the contracts settle worth $0. Thus, if you believe the answer will be YES, you should BUY contracts. If you think it will be NO, you should SELL contracts. Most markets will be listed where buying contracts equates to betting on the Home Team (or OVER for totals) and selling contracts equates to betting on the Away Team (or UNDER for totals).