The sentiment surrounding this business has never been lower. Spirit Airlines (SAVE -2.27%) has taken its investors on a turbulent journey. Shares of the troubled discount airliner have declined 93% in the past five years. During that same stretch, the S&P 500 would have more than doubled your money. As of this writing, this airline stock is down 97% from its peak, which was established in December 2014. Is it time to take a chance and buy Spirit shares? Spirit's troubles are hard to ignore For a stock to p ...