The key to trading: don't lose, says Trader Vic

Humans have a fundamental problem when it comes to food, sex and money. We lack discipline. "Everyone knows how to lose weight," said Victor Sperandeo, head of Alpha Financial Technologies and better known as Trader Vic, at a press briefing in Hong Kong this week. "The difficulty is doing it."People have the same problem when managing their money, so Sperandeo has come up with the trading equivalent of a gastric band -- an investable index that he has created together with Royal Bank …