Stock market has simple rules, you check their debt ratio, you check their on hand cash ratio (cash is the king in this scenario) you look at their f/p and you simply look at whatever you can in the institutional ownership ratio as well. When a  company has very little debt, and a lot of cash, and the stock price is good on the revenue/income ratio, with a high intuitional ownership. That's how you make a profit and that is how you improve your stock ownership.

I have made some purchases in my time and I can easily tell you that it is not as hard as most people think if you follow this rule. It is simple because it means that you do it by the book and it will not get you a lot of money but it will give you a consistent return for sure.