Unfortunately, It is a personal decision you must make. There is no crystal ball on this. You must weigh all the factors from your DD using whatever tools and sites you use and decide what you think is best for YOU. Investing (short term or long term is always risky. I've seen stocks with NO product skyrocket and crash as well as stocks WITH product skyrocket and crash. Dealing with pinks adds another layer of risk/reward because of the nature of pink sheet stock "low bar" monitoring.