08-19-2008, 03:31 PM
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#6 |
Join Date: Feb 2008 Location: Germany Thanks: 103
Thanked 186 Times in 89 Posts
| Re: Trading Edge: Definition Quote:
Originally Posted by jonbig04 » Edge is just a general term used to describe the fact of positive expectancy, eg. a statistical advantage.
Casinos make large profits because all their games have a built in mathematical edge on their side. Over the long term they will make more money than they lose. Period. If you don't have an edge (long term mathematical advantage) the best you can hope to do is break even. In trading though you won't even get that far because the odds are stacked against you to begin with (commish, slippage, emotions). Without an advantage you will lose money slowly, or all at once.
In the context of trading most people's edge is a system that they have tested an defined rigorously and have found to make them more money than they lose, giving them the advantage. This could be based on price action, canned indicators, fib numbers, phases of the moon, or their astrological sign...as long as it gives them a positive expectancy over the long term (yielding profit), its an edge. | The problem with 'edge' in trading is that you don't know you have one. The casinos know they have an edge because it is set in stone mathematically, but in trading you can only quantify your edge after the fact. You have an edge if you can consistently make money trading, and you obviously don't have one when you're losing money. The problem with that is that there might be more reasons to you losing money then not having an edge, which makes it even harder to quantify your edge. Even if you do think you have an edge, it might change or go away since the market is dynamic while the casinos edge is constant and never goes away. |
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