Capital is a major part of trading but not the only one. It in fluences the profit that comes in the loss that may occur when the market is very poor. Huge capitals attract huge profits when the bull is present, but when the bear is around the corner you smell a great loss if greed sets in. But in the end of it all, whether you're in profit or loss the point is try not to ever lose your capital. That's the most hurtful part of it all