The volume price trend indicator is used to determine the balance between a security’s demand and supply. The percentage change in the share price trend shows the relative supply or demand of a particular security, while volume indicates the force behind the trend. The VPT indicator is similar to the on-balance volume (OBV) indicator in that it measures cumulative...
The volume price trend (VPT) indicator helps determine a security’s price direction and strength of price change. The indicator consists of a cumulative volume line that adds or subtracts a multiple of the percentage change in a share price’s trend and current volume, depending upon the security’s upward or downward movements.
This indicator based on VPT (volume indicator that show buy and sell power) and Bollinger fibo lines..
So entry is when VPT crossing up the lower fib.. sell is opposite..
I make it open code so have fun and try to make it better:)