It is possible to quickly calculate what to trade and when, to maximize profits in penny stocks only after a number of trades using small low risk amounts. Some takes hours, and weeks and months and years - to gain knowledge in the market. Only after trading too often and evaluating the trends and results over a long period one can be a good trader. There are many "systems" and ways to identify trends and profitable opportunities in penny stocks, but there are several problems with them. The main problem is simply that any system still depends on evaluation of the historical trends, and this takes time and labor.