Quote from lescor:
Have you ever tried to trade 10,000 shares in a stock that does 300,000 shares a day? I already lose hundreds of dollars a day in slippage at the size I trade now. In the stock world disappearing liquidity and thin markets are major constraints when it comes to putting capital to work.
Your argument is a common one here on ET. People assume you can just mathematically compound numbers to infinity and that anyone who has or claims to have a winning system would therefor "own the universe" after a while. But it's a ridiculous claim for a few reasons.
The advantage of a small trader is their size. They can utilize strategies that money managers working with large amounts simply can't entertain because they have no hope of entering the market without completely distorting it. If they tried, guess who would be there to take advantage of the distortion and pick them off? Yup, the little guys like me. They get screwed on their order and a bunch of other small traders make money.
Sure if I traded ultra liquid markets like treasuries, forex, ES and the like, I could compound quite a bit before size would become a problem. But those are the most competitive markets for just that reason.
With the strategies that I trade, at some point built up profits become "excess cash" that can't be used. I have to either wait for more opportunity through increased volatility, I can move the cash outside a trading account and do something with it like invest it, or I can deploy it into different strategies. Unfortunately those just don't drop into your lap when you need them.