Anyone making those kind of returns has thrown caution to the wind for the most part and in general, will not last a long time in this business.
That sounds like a use of leverage. Be careful to not "blow out" the account as, if one's account balance goes below "0" mark to market and one can't make up the "deficit", then there are consequences ...
Let me preface my remarks by stating that I have never had even a single year with even close to those returns. That said, in all likelihood, you will probably simply have a year or years where your return is dramatically lower well before your size gets in the way if you are trading markets that offer decent liquidity. There are very few traders who can put together back to back years where they do anywhere close to those returns.
??? What is your problem??? He never claimed to make 300% a year or even asked how to make 300% a year. He simply asked if I started with 25K and could make 300% a year when would I run into liquidity problems? gosh darn, get a life
i'm sure i read that T Boone Pickens started with about a billion dollars one year and made it into 5 billion by the end of the year.