hey ratan,
not hurt or anything at all...i love good discussions. i was just answering to someone who said what will i do with a 20% winning system...and then someone who said how can i take 7 losses or 8 losses in a row...
1. just because it is a 30% winning system, u ont get JUSt 7 0r 8 losses ina row..it can be much more..and there comes probaility and law of large numbers.
2. Now what will this person do witha 20% system? there comes expectancy.
from some site:
"Expectancy is simply the product of your profit percentage per win and your win rate minus the product of your loss percentage per loss and your loss rate. For example:
* Win percentage 6%
* Win rate 60%
* Loss percentage 4%
* Loss rate 40%.
The expectancy is 2.0% per trade, or (6% x 60%) - (4% x 40%).
One of the more famous expectancy numbers comes from William O’Neil, advocate of the CANSLIM system and founder of Investors Business Daily. If we use his stop and target numbers of 8% and 20% and his published win rate of 30%, the expectancy can be calculated to be: (20% x 30%) - (8% x 70%) or +0.4%.
The bottom line is: expectancy must be positive if you want to make a profit over time. Never use a system with a zero or negative expectancy. You will not win. You can not beat the house over a long series of bets or trades."
hope that clarifies