While investors benefit from a raging bull market, it's interesting to see companies that continue to underperform. Peloton (PTON -2.58%), for example, is currently 97% below its all-time high. And shares have dropped 66% in the last 12 months (as of Feb. 14). This consumer discretionary stock was once a darling on Wall Street. But it has been pedaling backward for the past few years. As of this writing, the beaten-down shares are trading at a price-to-sales (P/S) ratio of 0.6. That's ridiculously cheap, de ...