FMC's stock crashed recently after the company slashed its dividend and released underwhelming earnings numbers.When a stock plummets to multiyear lows, it's typically not a good sign for the business and its investors. It can signal that there's something deeply wrong with the business, its fundamentals, future, or all of the above. If it's just a 52-week low, that may not be all that bad. But the longer back you have to go to find the last time the stock traded at its current levels, the worse the situati ...