Jim Cramer took to Real Money to explain that a dose of lazy thinking can lead you to sell a stock for all the wrong reasons.
"What's lazy thinking? It's the inability to see that your negativity is getting in the way of a good story. I have so many examples of this that I want to demonstrate to you what happens if you just decide to tough out a good story and not be so circumspect, not being a believer in what you own, to the detriment of your entire net worth upside," Cramer wrote.
Sparknotes? Before you get negative, remember why you bought a stock in the first place and really evaluate how much the story has changed.
Cramer uses the examples of Nike (NKE) - Get NIKE, Inc. (NKE) Report, Eli Lilly (LLY) - Get Eli Lilly and Company (LLY) Report and Waste Management (WM) - Get Waste Management, Inc. Report to explain how to differentiate between changing fundamentals and "lazy thinking" in the video above.