Buying stocks low and selling them high is a primal pursuit for investors. The reality for many trying to find deep value stocks is that it requires work, a keen interest in financial accounting and immense internal fortitude to maintain unwavering conviction, irrespective of how volatile price is.
Without getting into too much detail on how to identify deep value, the underlying premise is to buy into stocks trading at discounts to their intrinsic underlying value. These will be stocks often ignored by the market because they are either too small or have had/are having operational issues.