Another red flag for any company is when you see historically its stock price going up every day or every week for very long periods on low volumes and then subsequently falls continuously also, it means you need to be doubly-triply sure of the company.
There are 5000+ stocks in the market. The most important thing is to avoid bad companies. That way you prevent catastrophic losses and then the upside takes care of itself. You don’t need to buy companies where there are multiple question marks.