In the stock market I have margin accounts, which gives me 3:1 leverage, and allows me to short if I want.. And I do occasionally short, but I never use the leverage, I always have only traded with my own size account. I would hate to be margin called, and have my broker close positions on me. I prefer to trade my money, why be in a rush to trade big? With 10-50% gains on most trades, you will be big in no time, there is no need to up your risk prematurely.