Impact of Spread
If you make Intraday trading, then you really need to make this type of analysis provided by this indicator. It calculates spread, and it also calculates the impact of spread (returned in percentage %) on your intraday trading. How does it make it ? Simple: it consider the spread you will pay, compared with the volatility offered by the market.
Great values of the "impact of cost" imply that the instrument is not convenient for intraday and short-term trades, because the spread will effect yo