Generally by instructing your broker to sell your appreciated option rights to someone who may have an interest in exercising them. The sale will be accomplished on the trading floor of the exchange (the same exchange where the option was bought) and your net profit will be the difference between the price that you originally paid for the option and the higher price that you are able to sell it for, less brokerage and transaction expenses. The mechanics are no more complicated than, for example, selling shares of common stock that have appreciated. An alternative to selling a profitable option is to exercise the option rights yourself.  Doing this, however, would result in your actually acquiring a position in the futures market, which could require an additional investment on your part and involves significantly greater risk.  Most investors therefore prefer to realize their profits by simply selling the option at its increased value.