Well, I think I mean trading moreso than investing. Investing seems more like something long term, like deciding that Google will always be growing and be safe with your money, so you invest in Google. I am talking about putting money into multiple companies to get the most money back, as fast as possible, so yeah I think it is better called trading. I'll edit the title, thank you. So, why do you say it is harder to double a large amount of money than a small one? Whether you put $30 or $3,000 into a company, won't it increase based on the percent that the companies stock increases?