Despite losing nearly half of its value, the stock has still returned more than 43,000% since the mid-1990s. When someone wants to take out a loan, open a credit card, or apply for a mortgage, lenders will look at that person's credit score. It's been a lucrative business model for decades for Fair Isaac (FICO 3.76%), the company whose FICO credit scoring system has become a global leader, used in making more than 10 billion credit decisions annually. Shares of Fair Isaac have returned more than 43,000% sin ...