Or you make the rule, that you buy, when a stock drops by 20% because it likely drops not further.
Likely? I have witnessed 3 stock crashes already, and one thing I have learned is: when all the news is bad, it's probably not going to get good any time soon. Some stocks recover and some stocks do not ever rise again.
So trust me it can always drop more.
500$ ? It is not even a big deal. I have no idea why you even bother to write this topic.
Because I think there are a lot of people in my situation who take this tiny loss in silence, so I think one of these story's deserves to be told. I never said it was a big deal.