Players invest in various stock exchanges, each trying to buy low and sell high. But the individual prices of the stocks are determined by where each player places stock markers. Players can choose to protect stock, making them less vulnerable to other player's destructive motivations, or try to choke other stocks, making them disappear from the board. The player to make the most money before a single stock reaches maximum value or all the counters of one stock are used wins the game. Note: this is the same game as the Ravensburger edition of Shark.